./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:23:27,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:23:27,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:23:27,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:23:27,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:23:27,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:23:27,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:23:27,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:23:27,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:23:27,582 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:23:27,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:23:27,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:23:27,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:23:27,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:23:27,585 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:23:27,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:23:27,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:23:27,586 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:23:27,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:23:27,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:23:27,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:23:27,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:23:27,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:23:27,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:23:27,590 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:23:27,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:23:27,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:23:27,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:23:27,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:23:27,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:23:27,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:23:27,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:23:27,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:23:27,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:23:27,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:23:27,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:23:27,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:23:27,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:23:27,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:23:27,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:23:27,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:23:27,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:23:27,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:23:27,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:23:27,596 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 [2023-11-29 04:23:27,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:23:27,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:23:27,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:23:27,822 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:23:27,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:23:27,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2023-11-29 04:23:30,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:23:30,673 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:23:30,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2023-11-29 04:23:30,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/data/03a1a109b/e4ea4b8b11dc419598f2f6baa48ccb94/FLAGcabcb2cac [2023-11-29 04:23:30,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/data/03a1a109b/e4ea4b8b11dc419598f2f6baa48ccb94 [2023-11-29 04:23:30,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:23:30,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:23:30,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:23:30,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:23:30,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:23:30,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66387b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30, skipping insertion in model container [2023-11-29 04:23:30,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:23:30,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:30,891 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:23:30,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:23:30,926 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:23:30,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30 WrapperNode [2023-11-29 04:23:30,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:23:30,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:30,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:23:30,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:23:30,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,968 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2023-11-29 04:23:30,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:23:30,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:23:30,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:23:30,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:23:30,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,994 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:23:30,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:30,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:31,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:31,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:31,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:31,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:23:31,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:23:31,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:23:31,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:23:31,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (1/1) ... [2023-11-29 04:23:31,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:23:31,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:31,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:23:31,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:23:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:23:31,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:23:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:23:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:23:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:23:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:23:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:23:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:23:31,128 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:23:31,130 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:23:31,468 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:23:31,493 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:23:31,493 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:23:31,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:31 BoogieIcfgContainer [2023-11-29 04:23:31,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:23:31,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:23:31,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:23:31,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:23:31,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:23:30" (1/3) ... [2023-11-29 04:23:31,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50baf158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:31, skipping insertion in model container [2023-11-29 04:23:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:23:30" (2/3) ... [2023-11-29 04:23:31,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50baf158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:23:31, skipping insertion in model container [2023-11-29 04:23:31,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:23:31" (3/3) ... [2023-11-29 04:23:31,504 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound20.c [2023-11-29 04:23:31,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:23:31,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-29 04:23:31,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:23:31,574 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34386943, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:23:31,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 04:23:31,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 69 states have (on average 1.8985507246376812) internal successors, (131), 125 states have internal predecessors, (131), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:23:31,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:23:31,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:31,584 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:31,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:31,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:31,589 INFO L85 PathProgramCache]: Analyzing trace with hash 38741639, now seen corresponding path program 1 times [2023-11-29 04:23:31,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:31,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077786039] [2023-11-29 04:23:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:31,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:31,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:31,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971857177] [2023-11-29 04:23:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:31,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:31,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:31,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:31,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:23:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:31,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:31,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:23:31,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:31,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:31,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077786039] [2023-11-29 04:23:31,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971857177] [2023-11-29 04:23:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971857177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:31,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:31,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:31,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642108992] [2023-11-29 04:23:31,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:31,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:31,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:31,901 INFO L87 Difference]: Start difference. First operand has 139 states, 69 states have (on average 1.8985507246376812) internal successors, (131), 125 states have internal predecessors, (131), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:32,143 INFO L93 Difference]: Finished difference Result 393 states and 451 transitions. [2023-11-29 04:23:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:32,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2023-11-29 04:23:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:32,156 INFO L225 Difference]: With dead ends: 393 [2023-11-29 04:23:32,157 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 04:23:32,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:32,165 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 108 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:32,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 04:23:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 174. [2023-11-29 04:23:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 101 states have (on average 1.8613861386138615) internal successors, (188), 156 states have internal predecessors, (188), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 04:23:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 218 transitions. [2023-11-29 04:23:32,223 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 218 transitions. Word has length 25 [2023-11-29 04:23:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:32,224 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 218 transitions. [2023-11-29 04:23:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 218 transitions. [2023-11-29 04:23:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 04:23:32,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:32,226 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:32,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 04:23:32,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:23:32,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:32,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:32,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1200990860, now seen corresponding path program 1 times [2023-11-29 04:23:32,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:32,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945466911] [2023-11-29 04:23:32,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:32,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:32,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:32,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233890830] [2023-11-29 04:23:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:32,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:32,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:32,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:32,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:23:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:32,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:32,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:23:32,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:32,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:32,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945466911] [2023-11-29 04:23:32,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:32,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233890830] [2023-11-29 04:23:32,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233890830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:32,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:32,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293857719] [2023-11-29 04:23:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:32,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:32,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:32,522 INFO L87 Difference]: Start difference. First operand 174 states and 218 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:32,705 INFO L93 Difference]: Finished difference Result 251 states and 267 transitions. [2023-11-29 04:23:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2023-11-29 04:23:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:32,708 INFO L225 Difference]: With dead ends: 251 [2023-11-29 04:23:32,708 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 04:23:32,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:32,710 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:32,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 145 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 04:23:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 175. [2023-11-29 04:23:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 102 states have (on average 1.8431372549019607) internal successors, (188), 157 states have internal predecessors, (188), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 04:23:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2023-11-29 04:23:32,728 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 26 [2023-11-29 04:23:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:32,729 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2023-11-29 04:23:32,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:32,729 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2023-11-29 04:23:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 04:23:32,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:32,730 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:32,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:23:32,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:32,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:32,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1423988951, now seen corresponding path program 1 times [2023-11-29 04:23:32,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:32,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750499209] [2023-11-29 04:23:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:32,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:32,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:32,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815047510] [2023-11-29 04:23:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:32,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:32,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:32,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:32,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:23:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:32,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:23:32,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:23:33,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:33,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750499209] [2023-11-29 04:23:33,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815047510] [2023-11-29 04:23:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815047510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:33,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525449928] [2023-11-29 04:23:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:33,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:33,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:33,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:33,011 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:33,132 INFO L93 Difference]: Finished difference Result 292 states and 342 transitions. [2023-11-29 04:23:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:33,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2023-11-29 04:23:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:33,135 INFO L225 Difference]: With dead ends: 292 [2023-11-29 04:23:33,135 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 04:23:33,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:33,137 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 100 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:33,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 203 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:23:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 04:23:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 228. [2023-11-29 04:23:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 149 states have (on average 1.7919463087248322) internal successors, (267), 204 states have internal predecessors, (267), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 309 transitions. [2023-11-29 04:23:33,159 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 309 transitions. Word has length 27 [2023-11-29 04:23:33,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:33,159 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 309 transitions. [2023-11-29 04:23:33,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 309 transitions. [2023-11-29 04:23:33,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 04:23:33,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:33,160 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:33,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:23:33,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:33,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:33,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1641187275, now seen corresponding path program 1 times [2023-11-29 04:23:33,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:33,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384129382] [2023-11-29 04:23:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:33,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:33,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074718] [2023-11-29 04:23:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:33,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:33,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:23:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:33,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:23:33,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:23:33,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:33,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384129382] [2023-11-29 04:23:33,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074718] [2023-11-29 04:23:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489431155] [2023-11-29 04:23:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:33,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:33,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:33,484 INFO L87 Difference]: Start difference. First operand 228 states and 309 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:33,696 INFO L93 Difference]: Finished difference Result 284 states and 328 transitions. [2023-11-29 04:23:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:33,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 04:23:33,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:33,699 INFO L225 Difference]: With dead ends: 284 [2023-11-29 04:23:33,699 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 04:23:33,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:33,701 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:33,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 125 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:33,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 04:23:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 232. [2023-11-29 04:23:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 153 states have (on average 1.7450980392156863) internal successors, (267), 208 states have internal predecessors, (267), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2023-11-29 04:23:33,718 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 29 [2023-11-29 04:23:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:33,719 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2023-11-29 04:23:33,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-11-29 04:23:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 04:23:33,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:33,720 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:33,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:33,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:33,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -662801968, now seen corresponding path program 1 times [2023-11-29 04:23:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631128824] [2023-11-29 04:23:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:33,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:33,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130076194] [2023-11-29 04:23:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:33,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:33,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:23:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:33,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:33,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:23:34,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631128824] [2023-11-29 04:23:34,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130076194] [2023-11-29 04:23:34,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130076194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:34,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:34,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401016735] [2023-11-29 04:23:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:34,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:34,026 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:34,289 INFO L93 Difference]: Finished difference Result 277 states and 320 transitions. [2023-11-29 04:23:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2023-11-29 04:23:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:34,292 INFO L225 Difference]: With dead ends: 277 [2023-11-29 04:23:34,292 INFO L226 Difference]: Without dead ends: 272 [2023-11-29 04:23:34,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:34,293 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 171 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:34,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 173 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-29 04:23:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 193. [2023-11-29 04:23:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 119 states have (on average 1.73109243697479) internal successors, (206), 174 states have internal predecessors, (206), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:23:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 238 transitions. [2023-11-29 04:23:34,306 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 238 transitions. Word has length 30 [2023-11-29 04:23:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:34,307 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 238 transitions. [2023-11-29 04:23:34,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:23:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 238 transitions. [2023-11-29 04:23:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 04:23:34,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:34,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:34,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:23:34,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:34,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:34,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash 330085702, now seen corresponding path program 1 times [2023-11-29 04:23:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:34,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54565141] [2023-11-29 04:23:34,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:34,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:34,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771783460] [2023-11-29 04:23:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:34,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:34,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:34,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:34,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:23:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:34,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:34,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:23:34,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:34,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:34,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54565141] [2023-11-29 04:23:34,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:34,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771783460] [2023-11-29 04:23:34,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771783460] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:34,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:34,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 04:23:34,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852776937] [2023-11-29 04:23:34,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:34,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:34,886 INFO L87 Difference]: Start difference. First operand 193 states and 238 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:23:39,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:23:44,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:23:48,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:23:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:50,829 INFO L93 Difference]: Finished difference Result 218 states and 266 transitions. [2023-11-29 04:23:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:50,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2023-11-29 04:23:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:50,831 INFO L225 Difference]: With dead ends: 218 [2023-11-29 04:23:50,831 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 04:23:50,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:50,832 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 236 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 14 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:50,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 171 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 165 Invalid, 9 Unknown, 0 Unchecked, 15.8s Time] [2023-11-29 04:23:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 04:23:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2023-11-29 04:23:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 135 states have (on average 1.674074074074074) internal successors, (226), 189 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:23:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 262 transitions. [2023-11-29 04:23:50,848 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 262 transitions. Word has length 36 [2023-11-29 04:23:50,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:50,849 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 262 transitions. [2023-11-29 04:23:50,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:23:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 262 transitions. [2023-11-29 04:23:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 04:23:50,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:50,850 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:50,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:23:51,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:51,054 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:51,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1642722234, now seen corresponding path program 1 times [2023-11-29 04:23:51,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:51,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862310430] [2023-11-29 04:23:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:51,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:51,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:51,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975839610] [2023-11-29 04:23:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:51,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:51,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:51,069 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:51,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:23:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:51,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:51,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:23:51,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:51,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:51,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862310430] [2023-11-29 04:23:51,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:51,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975839610] [2023-11-29 04:23:51,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975839610] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:51,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:51,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 04:23:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311954605] [2023-11-29 04:23:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:51,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:51,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:51,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:51,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:51,486 INFO L87 Difference]: Start difference. First operand 210 states and 262 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:23:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:53,629 INFO L93 Difference]: Finished difference Result 219 states and 266 transitions. [2023-11-29 04:23:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:53,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2023-11-29 04:23:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:53,632 INFO L225 Difference]: With dead ends: 219 [2023-11-29 04:23:53,632 INFO L226 Difference]: Without dead ends: 217 [2023-11-29 04:23:53,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:53,633 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 233 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:53,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 236 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:23:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-29 04:23:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2023-11-29 04:23:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 137 states have (on average 1.6496350364963503) internal successors, (226), 190 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:23:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2023-11-29 04:23:53,652 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 37 [2023-11-29 04:23:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:53,652 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2023-11-29 04:23:53,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:23:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2023-11-29 04:23:53,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 04:23:53,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:53,654 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:53,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:23:53,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:23:53,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:53,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:53,855 INFO L85 PathProgramCache]: Analyzing trace with hash -615218232, now seen corresponding path program 1 times [2023-11-29 04:23:53,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:53,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512606251] [2023-11-29 04:23:53,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:53,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:53,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:53,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660322759] [2023-11-29 04:23:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:53,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:53,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:53,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:23:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:53,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:53,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:53,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:54,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:54,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512606251] [2023-11-29 04:23:54,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:54,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660322759] [2023-11-29 04:23:54,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660322759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:54,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:54,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:54,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859598082] [2023-11-29 04:23:54,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:54,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:54,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:54,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:54,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:54,102 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 04:23:54,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:54,819 INFO L93 Difference]: Finished difference Result 375 states and 458 transitions. [2023-11-29 04:23:54,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:54,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 38 [2023-11-29 04:23:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:54,822 INFO L225 Difference]: With dead ends: 375 [2023-11-29 04:23:54,822 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 04:23:54,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:54,824 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 518 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:54,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 218 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:23:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 04:23:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 212. [2023-11-29 04:23:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 139 states have (on average 1.6258992805755397) internal successors, (226), 191 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:23:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2023-11-29 04:23:54,845 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 38 [2023-11-29 04:23:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:54,845 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2023-11-29 04:23:54,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 04:23:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2023-11-29 04:23:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 04:23:54,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:54,847 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:54,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:23:55,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 04:23:55,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:55,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1891895940, now seen corresponding path program 1 times [2023-11-29 04:23:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:55,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156666027] [2023-11-29 04:23:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:55,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:55,065 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:55,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117914552] [2023-11-29 04:23:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:55,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:55,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:55,067 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:55,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:23:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:55,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:55,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:55,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:55,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156666027] [2023-11-29 04:23:55,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117914552] [2023-11-29 04:23:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117914552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:55,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003755983] [2023-11-29 04:23:55,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:55,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:55,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:55,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:55,353 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 04:23:55,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:55,795 INFO L93 Difference]: Finished difference Result 373 states and 453 transitions. [2023-11-29 04:23:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:55,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 04:23:55,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:55,798 INFO L225 Difference]: With dead ends: 373 [2023-11-29 04:23:55,799 INFO L226 Difference]: Without dead ends: 371 [2023-11-29 04:23:55,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:55,800 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 306 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:55,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 385 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:23:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-29 04:23:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 213. [2023-11-29 04:23:55,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 141 states have (on average 1.6028368794326242) internal successors, (226), 192 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:23:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 262 transitions. [2023-11-29 04:23:55,823 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 262 transitions. Word has length 39 [2023-11-29 04:23:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:55,823 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 262 transitions. [2023-11-29 04:23:55,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 04:23:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 262 transitions. [2023-11-29 04:23:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 04:23:55,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:55,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:55,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:23:56,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 04:23:56,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:56,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1480768074, now seen corresponding path program 1 times [2023-11-29 04:23:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:56,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646951856] [2023-11-29 04:23:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:56,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:56,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:56,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238103184] [2023-11-29 04:23:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:56,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:56,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:56,039 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:56,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:23:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:56,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:23:56,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:23:56,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:56,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646951856] [2023-11-29 04:23:56,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238103184] [2023-11-29 04:23:56,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238103184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:56,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:23:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553952453] [2023-11-29 04:23:56,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:56,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:56,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:56,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:23:56,284 INFO L87 Difference]: Start difference. First operand 213 states and 262 transitions. Second operand has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:23:57,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:57,400 INFO L93 Difference]: Finished difference Result 365 states and 446 transitions. [2023-11-29 04:23:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:57,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-29 04:23:57,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:57,403 INFO L225 Difference]: With dead ends: 365 [2023-11-29 04:23:57,403 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 04:23:57,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:57,404 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 408 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:57,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 164 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:23:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 04:23:57,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 275. [2023-11-29 04:23:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 196 states have (on average 1.6122448979591837) internal successors, (316), 247 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 04:23:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 366 transitions. [2023-11-29 04:23:57,432 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 366 transitions. Word has length 40 [2023-11-29 04:23:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:57,433 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 366 transitions. [2023-11-29 04:23:57,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 04:23:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 366 transitions. [2023-11-29 04:23:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 04:23:57,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:57,434 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:57,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:57,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:57,638 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:57,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1340829890, now seen corresponding path program 1 times [2023-11-29 04:23:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566542104] [2023-11-29 04:23:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:57,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:57,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911606739] [2023-11-29 04:23:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:57,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:57,648 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:57,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:23:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:57,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:23:57,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:23:57,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:57,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:57,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566542104] [2023-11-29 04:23:57,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:57,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911606739] [2023-11-29 04:23:57,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911606739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:57,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:57,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620218736] [2023-11-29 04:23:57,952 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:57,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:57,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:57,953 INFO L87 Difference]: Start difference. First operand 275 states and 366 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 04:23:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:59,270 INFO L93 Difference]: Finished difference Result 369 states and 450 transitions. [2023-11-29 04:23:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:59,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2023-11-29 04:23:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:59,272 INFO L225 Difference]: With dead ends: 369 [2023-11-29 04:23:59,272 INFO L226 Difference]: Without dead ends: 367 [2023-11-29 04:23:59,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:59,274 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 506 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:59,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 196 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:23:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-29 04:23:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 277. [2023-11-29 04:23:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 198 states have (on average 1.595959595959596) internal successors, (316), 249 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 04:23:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 366 transitions. [2023-11-29 04:23:59,299 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 366 transitions. Word has length 41 [2023-11-29 04:23:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:59,299 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 366 transitions. [2023-11-29 04:23:59,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 04:23:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 366 transitions. [2023-11-29 04:23:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 04:23:59,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:59,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:59,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:23:59,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,506 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:23:59,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 44615711, now seen corresponding path program 1 times [2023-11-29 04:23:59,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626617344] [2023-11-29 04:23:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:59,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:59,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931088155] [2023-11-29 04:23:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:59,523 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:59,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:23:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:59,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:59,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:23:59,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:59,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:59,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626617344] [2023-11-29 04:23:59,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:59,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931088155] [2023-11-29 04:23:59,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931088155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:59,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:59,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:23:59,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833359520] [2023-11-29 04:23:59,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:59,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:59,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:59,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:59,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:23:59,638 INFO L87 Difference]: Start difference. First operand 277 states and 366 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:23:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:59,855 INFO L93 Difference]: Finished difference Result 319 states and 385 transitions. [2023-11-29 04:23:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2023-11-29 04:23:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:59,857 INFO L225 Difference]: With dead ends: 319 [2023-11-29 04:23:59,857 INFO L226 Difference]: Without dead ends: 317 [2023-11-29 04:23:59,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:23:59,858 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 189 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:59,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 302 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-29 04:23:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 278. [2023-11-29 04:23:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 199 states have (on average 1.5829145728643217) internal successors, (315), 250 states have internal predecessors, (315), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 04:23:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 365 transitions. [2023-11-29 04:23:59,876 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 365 transitions. Word has length 49 [2023-11-29 04:23:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:59,876 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 365 transitions. [2023-11-29 04:23:59,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:23:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 365 transitions. [2023-11-29 04:23:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 04:23:59,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:59,877 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:59,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:00,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:24:00,078 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:00,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:00,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1383087122, now seen corresponding path program 1 times [2023-11-29 04:24:00,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:00,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747079991] [2023-11-29 04:24:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:00,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:00,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:00,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701080960] [2023-11-29 04:24:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:00,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:00,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:00,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:00,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:24:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:00,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:24:00,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:24:00,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:24:00,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:00,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747079991] [2023-11-29 04:24:00,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:00,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701080960] [2023-11-29 04:24:00,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701080960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:00,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:00,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:24:00,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355912365] [2023-11-29 04:24:00,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:00,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:00,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:00,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:24:00,417 INFO L87 Difference]: Start difference. First operand 278 states and 365 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:24:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:00,786 INFO L93 Difference]: Finished difference Result 333 states and 396 transitions. [2023-11-29 04:24:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:24:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 50 [2023-11-29 04:24:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:00,788 INFO L225 Difference]: With dead ends: 333 [2023-11-29 04:24:00,788 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 04:24:00,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:24:00,790 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 420 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:00,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 393 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 04:24:00,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 284. [2023-11-29 04:24:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 205 states have (on average 1.575609756097561) internal successors, (323), 255 states have internal predecessors, (323), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 375 transitions. [2023-11-29 04:24:00,817 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 375 transitions. Word has length 50 [2023-11-29 04:24:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:00,817 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 375 transitions. [2023-11-29 04:24:00,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:24:00,818 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 375 transitions. [2023-11-29 04:24:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 04:24:00,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:00,818 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:00,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:24:01,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:01,022 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:01,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash -73972095, now seen corresponding path program 1 times [2023-11-29 04:24:01,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:01,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233084263] [2023-11-29 04:24:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:01,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:01,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:01,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513678004] [2023-11-29 04:24:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:01,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:01,035 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:01,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:24:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:01,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:24:01,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:24:01,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:01,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:01,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233084263] [2023-11-29 04:24:01,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:01,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513678004] [2023-11-29 04:24:01,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513678004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:01,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:01,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:24:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388678946] [2023-11-29 04:24:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:24:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:01,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:24:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:01,212 INFO L87 Difference]: Start difference. First operand 284 states and 375 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:24:01,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:01,714 INFO L93 Difference]: Finished difference Result 315 states and 383 transitions. [2023-11-29 04:24:01,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:24:01,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2023-11-29 04:24:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:01,716 INFO L225 Difference]: With dead ends: 315 [2023-11-29 04:24:01,716 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 04:24:01,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:24:01,717 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 178 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:01,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 248 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:24:01,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 04:24:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2023-11-29 04:24:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 207 states have (on average 1.5603864734299517) internal successors, (323), 257 states have internal predecessors, (323), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 375 transitions. [2023-11-29 04:24:01,743 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 375 transitions. Word has length 51 [2023-11-29 04:24:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:01,743 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 375 transitions. [2023-11-29 04:24:01,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:24:01,743 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 375 transitions. [2023-11-29 04:24:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 04:24:01,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:01,744 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:01,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:24:01,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:01,945 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:01,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:01,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2001832436, now seen corresponding path program 1 times [2023-11-29 04:24:01,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:01,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962975496] [2023-11-29 04:24:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:01,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:01,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:01,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423600099] [2023-11-29 04:24:01,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:01,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:01,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:01,956 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:01,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:24:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:02,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:24:02,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 04:24:02,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:02,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:02,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962975496] [2023-11-29 04:24:02,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423600099] [2023-11-29 04:24:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423600099] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:02,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:02,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:24:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697100873] [2023-11-29 04:24:02,382 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:02,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:24:02,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:02,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:24:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:02,384 INFO L87 Difference]: Start difference. First operand 286 states and 375 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:24:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:04,264 INFO L93 Difference]: Finished difference Result 313 states and 380 transitions. [2023-11-29 04:24:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:24:04,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 52 [2023-11-29 04:24:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:04,266 INFO L225 Difference]: With dead ends: 313 [2023-11-29 04:24:04,266 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 04:24:04,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:24:04,267 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 252 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:04,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 305 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:24:04,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 04:24:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 287. [2023-11-29 04:24:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 208 states have (on average 1.5480769230769231) internal successors, (322), 258 states have internal predecessors, (322), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 374 transitions. [2023-11-29 04:24:04,285 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 374 transitions. Word has length 52 [2023-11-29 04:24:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:04,286 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 374 transitions. [2023-11-29 04:24:04,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 04:24:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 374 transitions. [2023-11-29 04:24:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 04:24:04,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:04,287 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:04,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:24:04,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:24:04,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:04,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1959843167, now seen corresponding path program 1 times [2023-11-29 04:24:04,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:04,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856250498] [2023-11-29 04:24:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:04,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888230440] [2023-11-29 04:24:04,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:04,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:04,497 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:04,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:24:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:04,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:24:04,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:04,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856250498] [2023-11-29 04:24:04,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:04,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888230440] [2023-11-29 04:24:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888230440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:04,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:04,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172084401] [2023-11-29 04:24:04,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:04,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:04,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:04,557 INFO L87 Difference]: Start difference. First operand 287 states and 374 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:24:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:04,603 INFO L93 Difference]: Finished difference Result 287 states and 374 transitions. [2023-11-29 04:24:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-11-29 04:24:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:04,607 INFO L225 Difference]: With dead ends: 287 [2023-11-29 04:24:04,607 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 04:24:04,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:04,608 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:04,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 201 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:24:04,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 04:24:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-29 04:24:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 208 states have (on average 1.5192307692307692) internal successors, (316), 256 states have internal predecessors, (316), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 368 transitions. [2023-11-29 04:24:04,636 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 368 transitions. Word has length 59 [2023-11-29 04:24:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:04,636 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 368 transitions. [2023-11-29 04:24:04,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:24:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 368 transitions. [2023-11-29 04:24:04,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:24:04,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:04,637 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:04,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:24:04,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:24:04,838 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:04,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash -625595905, now seen corresponding path program 1 times [2023-11-29 04:24:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994939209] [2023-11-29 04:24:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:04,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:04,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199157337] [2023-11-29 04:24:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:04,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:04,848 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:04,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:24:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:04,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:24:04,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:04,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:04,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:04,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994939209] [2023-11-29 04:24:04,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:04,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199157337] [2023-11-29 04:24:04,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199157337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:04,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509747683] [2023-11-29 04:24:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:04,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:04,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:04,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:04,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:04,901 INFO L87 Difference]: Start difference. First operand 285 states and 368 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:24:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:04,948 INFO L93 Difference]: Finished difference Result 285 states and 368 transitions. [2023-11-29 04:24:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-11-29 04:24:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:04,950 INFO L225 Difference]: With dead ends: 285 [2023-11-29 04:24:04,950 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 04:24:04,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:04,951 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 45 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:04,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 200 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:24:04,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 04:24:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-29 04:24:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.4807692307692308) internal successors, (308), 254 states have internal predecessors, (308), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2023-11-29 04:24:04,970 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 60 [2023-11-29 04:24:04,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:04,971 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2023-11-29 04:24:04,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:24:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2023-11-29 04:24:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 04:24:04,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:04,972 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:04,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:24:05,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:24:05,172 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:05,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:05,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2081391361, now seen corresponding path program 1 times [2023-11-29 04:24:05,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:05,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957777343] [2023-11-29 04:24:05,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:05,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:05,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570123774] [2023-11-29 04:24:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:05,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:05,180 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:05,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:24:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:05,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:24:05,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:05,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957777343] [2023-11-29 04:24:05,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:05,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570123774] [2023-11-29 04:24:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570123774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:24:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056781783] [2023-11-29 04:24:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:05,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:24:05,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:24:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:24:05,312 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:24:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:05,497 INFO L93 Difference]: Finished difference Result 311 states and 388 transitions. [2023-11-29 04:24:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:24:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 04:24:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:05,500 INFO L225 Difference]: With dead ends: 311 [2023-11-29 04:24:05,500 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 04:24:05,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:05,501 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 363 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:05,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 161 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 04:24:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 285. [2023-11-29 04:24:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.4761904761904763) internal successors, (310), 256 states have internal predecessors, (310), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 362 transitions. [2023-11-29 04:24:05,519 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 362 transitions. Word has length 61 [2023-11-29 04:24:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:05,519 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 362 transitions. [2023-11-29 04:24:05,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:24:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 362 transitions. [2023-11-29 04:24:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 04:24:05,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:05,520 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:05,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:05,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:24:05,721 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:05,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:05,721 INFO L85 PathProgramCache]: Analyzing trace with hash 2081405263, now seen corresponding path program 1 times [2023-11-29 04:24:05,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894562940] [2023-11-29 04:24:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:05,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:05,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767664949] [2023-11-29 04:24:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:05,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:05,731 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:05,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:24:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:05,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:24:05,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:05,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:05,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:05,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894562940] [2023-11-29 04:24:05,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:05,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767664949] [2023-11-29 04:24:05,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767664949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:05,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:05,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:24:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572230778] [2023-11-29 04:24:05,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:05,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:24:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:05,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:24:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:24:05,865 INFO L87 Difference]: Start difference. First operand 285 states and 362 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:24:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:06,056 INFO L93 Difference]: Finished difference Result 310 states and 387 transitions. [2023-11-29 04:24:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:24:06,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 04:24:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:06,059 INFO L225 Difference]: With dead ends: 310 [2023-11-29 04:24:06,059 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 04:24:06,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:06,060 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 196 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:06,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 178 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:06,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 04:24:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 285. [2023-11-29 04:24:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.4714285714285715) internal successors, (309), 256 states have internal predecessors, (309), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2023-11-29 04:24:06,089 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 361 transitions. Word has length 61 [2023-11-29 04:24:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:06,089 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 361 transitions. [2023-11-29 04:24:06,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:24:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2023-11-29 04:24:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 04:24:06,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:06,090 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:06,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 04:24:06,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:06,290 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:06,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash 99053827, now seen corresponding path program 1 times [2023-11-29 04:24:06,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:06,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993576797] [2023-11-29 04:24:06,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:06,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:06,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:06,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205338369] [2023-11-29 04:24:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:06,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:06,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:06,299 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:06,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:24:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:06,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:24:06,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:06,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993576797] [2023-11-29 04:24:06,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205338369] [2023-11-29 04:24:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205338369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:06,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:06,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170102810] [2023-11-29 04:24:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:06,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:06,409 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:06,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:06,828 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2023-11-29 04:24:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:06,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2023-11-29 04:24:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:06,830 INFO L225 Difference]: With dead ends: 305 [2023-11-29 04:24:06,830 INFO L226 Difference]: Without dead ends: 303 [2023-11-29 04:24:06,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:06,831 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 49 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:06,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 151 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:24:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-29 04:24:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 285. [2023-11-29 04:24:06,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.457142857142857) internal successors, (306), 256 states have internal predecessors, (306), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 358 transitions. [2023-11-29 04:24:06,854 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 358 transitions. Word has length 62 [2023-11-29 04:24:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:06,854 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 358 transitions. [2023-11-29 04:24:06,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 358 transitions. [2023-11-29 04:24:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 04:24:06,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:06,854 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:06,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 04:24:07,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:07,055 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:07,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 287282565, now seen corresponding path program 1 times [2023-11-29 04:24:07,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140175030] [2023-11-29 04:24:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:07,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:07,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:07,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454061885] [2023-11-29 04:24:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:07,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:07,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:07,065 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:07,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 04:24:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:07,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:24:07,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:07,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:07,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:07,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140175030] [2023-11-29 04:24:07,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:07,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454061885] [2023-11-29 04:24:07,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454061885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:07,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:07,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:07,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465609653] [2023-11-29 04:24:07,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:07,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:07,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:07,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:07,195 INFO L87 Difference]: Start difference. First operand 285 states and 358 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:07,348 INFO L93 Difference]: Finished difference Result 372 states and 435 transitions. [2023-11-29 04:24:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:07,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2023-11-29 04:24:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:07,351 INFO L225 Difference]: With dead ends: 372 [2023-11-29 04:24:07,351 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 04:24:07,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:07,352 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 70 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:07,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 135 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:24:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 04:24:07,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 293. [2023-11-29 04:24:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 218 states have (on average 1.4495412844036697) internal successors, (316), 264 states have internal predecessors, (316), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2023-11-29 04:24:07,382 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 64 [2023-11-29 04:24:07,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:07,382 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2023-11-29 04:24:07,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:07,382 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2023-11-29 04:24:07,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 04:24:07,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:07,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:07,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 04:24:07,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 04:24:07,584 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:07,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash 701450949, now seen corresponding path program 1 times [2023-11-29 04:24:07,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:07,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308735434] [2023-11-29 04:24:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:07,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:07,590 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922376157] [2023-11-29 04:24:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:07,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:07,591 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:07,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 04:24:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:07,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:24:07,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:07,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:07,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308735434] [2023-11-29 04:24:07,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922376157] [2023-11-29 04:24:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922376157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:07,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:07,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893157778] [2023-11-29 04:24:07,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:07,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:07,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:07,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:07,727 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:07,920 INFO L93 Difference]: Finished difference Result 293 states and 368 transitions. [2023-11-29 04:24:07,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:07,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2023-11-29 04:24:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:07,922 INFO L225 Difference]: With dead ends: 293 [2023-11-29 04:24:07,922 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 04:24:07,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:07,923 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 78 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:07,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 84 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:07,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 04:24:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-11-29 04:24:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 218 states have (on average 1.4311926605504588) internal successors, (312), 262 states have internal predecessors, (312), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:24:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 364 transitions. [2023-11-29 04:24:07,954 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 364 transitions. Word has length 64 [2023-11-29 04:24:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:07,954 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 364 transitions. [2023-11-29 04:24:07,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 364 transitions. [2023-11-29 04:24:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 04:24:07,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:07,956 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:07,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 04:24:08,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 04:24:08,161 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:08,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1909443445, now seen corresponding path program 1 times [2023-11-29 04:24:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:08,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316938866] [2023-11-29 04:24:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:08,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:08,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:08,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107489909] [2023-11-29 04:24:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:08,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:08,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:08,169 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:08,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 04:24:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:08,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:08,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:08,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:08,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316938866] [2023-11-29 04:24:08,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107489909] [2023-11-29 04:24:08,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107489909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:08,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:08,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 04:24:08,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69471173] [2023-11-29 04:24:08,463 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:08,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:24:08,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:08,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:24:08,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:08,464 INFO L87 Difference]: Start difference. First operand 291 states and 364 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:08,809 INFO L93 Difference]: Finished difference Result 364 states and 424 transitions. [2023-11-29 04:24:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2023-11-29 04:24:08,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:08,812 INFO L225 Difference]: With dead ends: 364 [2023-11-29 04:24:08,812 INFO L226 Difference]: Without dead ends: 362 [2023-11-29 04:24:08,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:08,812 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:08,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 175 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:08,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-29 04:24:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 297. [2023-11-29 04:24:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 223 states have (on average 1.4349775784753362) internal successors, (320), 267 states have internal predecessors, (320), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 374 transitions. [2023-11-29 04:24:08,832 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 374 transitions. Word has length 67 [2023-11-29 04:24:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:08,833 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 374 transitions. [2023-11-29 04:24:08,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 374 transitions. [2023-11-29 04:24:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 04:24:08,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:08,834 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:08,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 04:24:09,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 04:24:09,034 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:09,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash -936795298, now seen corresponding path program 1 times [2023-11-29 04:24:09,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:09,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638632201] [2023-11-29 04:24:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:09,041 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:09,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738519311] [2023-11-29 04:24:09,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:09,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:09,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:09,043 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:09,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 04:24:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:09,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:09,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:09,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:09,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:09,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638632201] [2023-11-29 04:24:09,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:09,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738519311] [2023-11-29 04:24:09,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738519311] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:09,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:09,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 04:24:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249298861] [2023-11-29 04:24:09,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:09,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:24:09,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:09,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:24:09,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:09,297 INFO L87 Difference]: Start difference. First operand 297 states and 374 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:09,501 INFO L93 Difference]: Finished difference Result 362 states and 422 transitions. [2023-11-29 04:24:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:09,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2023-11-29 04:24:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:09,503 INFO L225 Difference]: With dead ends: 362 [2023-11-29 04:24:09,503 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 04:24:09,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:24:09,504 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:09,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 175 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 04:24:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2023-11-29 04:24:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.4285714285714286) internal successors, (320), 268 states have internal predecessors, (320), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 374 transitions. [2023-11-29 04:24:09,526 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 374 transitions. Word has length 68 [2023-11-29 04:24:09,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:09,527 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 374 transitions. [2023-11-29 04:24:09,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 374 transitions. [2023-11-29 04:24:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 04:24:09,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:09,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:09,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 04:24:09,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 04:24:09,728 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:09,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1024116887, now seen corresponding path program 1 times [2023-11-29 04:24:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439854863] [2023-11-29 04:24:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:09,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:09,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415507806] [2023-11-29 04:24:09,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:09,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:09,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:09,737 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:09,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 04:24:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:09,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:24:09,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:24:09,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:09,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:09,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439854863] [2023-11-29 04:24:09,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:09,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415507806] [2023-11-29 04:24:09,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415507806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:09,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:09,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:24:09,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644843012] [2023-11-29 04:24:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:09,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:24:09,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:24:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:09,815 INFO L87 Difference]: Start difference. First operand 298 states and 374 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:10,100 INFO L93 Difference]: Finished difference Result 362 states and 422 transitions. [2023-11-29 04:24:10,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:24:10,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2023-11-29 04:24:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:10,103 INFO L225 Difference]: With dead ends: 362 [2023-11-29 04:24:10,103 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 04:24:10,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:24:10,104 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:10,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 189 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 04:24:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 298. [2023-11-29 04:24:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.4107142857142858) internal successors, (316), 268 states have internal predecessors, (316), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 370 transitions. [2023-11-29 04:24:10,134 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 370 transitions. Word has length 69 [2023-11-29 04:24:10,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:10,134 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 370 transitions. [2023-11-29 04:24:10,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 370 transitions. [2023-11-29 04:24:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 04:24:10,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:10,135 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:10,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 04:24:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 04:24:10,336 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:10,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 169429588, now seen corresponding path program 1 times [2023-11-29 04:24:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233475922] [2023-11-29 04:24:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:10,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:10,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961205331] [2023-11-29 04:24:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:10,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:10,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:10,352 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:10,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 04:24:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:10,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:24:10,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:10,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:10,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:10,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233475922] [2023-11-29 04:24:10,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961205331] [2023-11-29 04:24:10,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961205331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:10,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:10,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:24:10,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935452744] [2023-11-29 04:24:10,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:10,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:10,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:10,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:24:10,570 INFO L87 Difference]: Start difference. First operand 298 states and 370 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:24:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:11,002 INFO L93 Difference]: Finished difference Result 308 states and 372 transitions. [2023-11-29 04:24:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:24:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 72 [2023-11-29 04:24:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:11,004 INFO L225 Difference]: With dead ends: 308 [2023-11-29 04:24:11,005 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 04:24:11,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:24:11,006 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 257 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:11,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 156 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:24:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 04:24:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 297. [2023-11-29 04:24:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 224 states have (on average 1.3973214285714286) internal successors, (313), 267 states have internal predecessors, (313), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 367 transitions. [2023-11-29 04:24:11,029 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 367 transitions. Word has length 72 [2023-11-29 04:24:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:11,029 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 367 transitions. [2023-11-29 04:24:11,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:24:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 367 transitions. [2023-11-29 04:24:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:24:11,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:11,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:11,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:11,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 04:24:11,231 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:11,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:11,231 INFO L85 PathProgramCache]: Analyzing trace with hash 628819385, now seen corresponding path program 1 times [2023-11-29 04:24:11,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012970998] [2023-11-29 04:24:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:11,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:11,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:11,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633254644] [2023-11-29 04:24:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:11,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:11,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:11,240 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:11,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 04:24:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:11,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:24:11,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:24:11,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:11,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:11,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012970998] [2023-11-29 04:24:11,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:11,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633254644] [2023-11-29 04:24:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633254644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:11,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:24:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406202905] [2023-11-29 04:24:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:11,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:24:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:24:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:24:11,328 INFO L87 Difference]: Start difference. First operand 297 states and 367 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:11,615 INFO L93 Difference]: Finished difference Result 356 states and 414 transitions. [2023-11-29 04:24:11,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:24:11,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2023-11-29 04:24:11,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:11,617 INFO L225 Difference]: With dead ends: 356 [2023-11-29 04:24:11,617 INFO L226 Difference]: Without dead ends: 355 [2023-11-29 04:24:11,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:24:11,618 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:11,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 158 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-29 04:24:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 297. [2023-11-29 04:24:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 224 states have (on average 1.3928571428571428) internal successors, (312), 267 states have internal predecessors, (312), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 366 transitions. [2023-11-29 04:24:11,652 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 366 transitions. Word has length 71 [2023-11-29 04:24:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:11,653 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 366 transitions. [2023-11-29 04:24:11,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 366 transitions. [2023-11-29 04:24:11,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 04:24:11,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:11,653 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:11,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 04:24:11,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 04:24:11,854 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:11,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:11,854 INFO L85 PathProgramCache]: Analyzing trace with hash 957350077, now seen corresponding path program 1 times [2023-11-29 04:24:11,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:11,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221358102] [2023-11-29 04:24:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:11,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:11,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:11,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74770819] [2023-11-29 04:24:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:11,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:11,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:11,862 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:11,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 04:24:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:11,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:24:11,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:12,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:12,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:12,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221358102] [2023-11-29 04:24:12,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:12,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74770819] [2023-11-29 04:24:12,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74770819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:12,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:24:12,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482892817] [2023-11-29 04:24:12,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:12,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:24:12,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:12,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:24:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:24:12,237 INFO L87 Difference]: Start difference. First operand 297 states and 366 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:13,356 INFO L93 Difference]: Finished difference Result 313 states and 369 transitions. [2023-11-29 04:24:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:24:13,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2023-11-29 04:24:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:13,358 INFO L225 Difference]: With dead ends: 313 [2023-11-29 04:24:13,358 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 04:24:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:24:13,359 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 211 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:13,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 250 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:24:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 04:24:13,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2023-11-29 04:24:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 223 states have (on average 1.3856502242152466) internal successors, (309), 266 states have internal predecessors, (309), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 363 transitions. [2023-11-29 04:24:13,404 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 363 transitions. Word has length 73 [2023-11-29 04:24:13,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:13,404 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 363 transitions. [2023-11-29 04:24:13,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:13,404 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 363 transitions. [2023-11-29 04:24:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 04:24:13,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:13,405 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:13,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:13,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 04:24:13,605 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:13,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1981435486, now seen corresponding path program 1 times [2023-11-29 04:24:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081150950] [2023-11-29 04:24:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:13,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:13,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92574160] [2023-11-29 04:24:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:13,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:13,615 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 04:24:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:13,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:24:13,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:13,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:13,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:13,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081150950] [2023-11-29 04:24:13,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:13,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92574160] [2023-11-29 04:24:13,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92574160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:13,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:13,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:24:13,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252718331] [2023-11-29 04:24:13,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:13,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:24:13,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:13,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:24:13,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:24:13,704 INFO L87 Difference]: Start difference. First operand 296 states and 363 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:14,100 INFO L93 Difference]: Finished difference Result 355 states and 410 transitions. [2023-11-29 04:24:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:24:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-11-29 04:24:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:14,102 INFO L225 Difference]: With dead ends: 355 [2023-11-29 04:24:14,102 INFO L226 Difference]: Without dead ends: 352 [2023-11-29 04:24:14,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:24:14,103 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 76 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:14,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 209 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:24:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-29 04:24:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 299. [2023-11-29 04:24:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 226 states have (on average 1.3805309734513274) internal successors, (312), 269 states have internal predecessors, (312), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 04:24:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 366 transitions. [2023-11-29 04:24:14,124 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 366 transitions. Word has length 72 [2023-11-29 04:24:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:14,124 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 366 transitions. [2023-11-29 04:24:14,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:24:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 366 transitions. [2023-11-29 04:24:14,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 04:24:14,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:14,125 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:14,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 04:24:14,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:14,326 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:14,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:14,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1002095526, now seen corresponding path program 1 times [2023-11-29 04:24:14,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:14,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618715347] [2023-11-29 04:24:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:14,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:14,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:14,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943389827] [2023-11-29 04:24:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:14,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:14,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:14,333 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:14,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 04:24:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:14,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:14,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:14,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:14,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:14,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618715347] [2023-11-29 04:24:14,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:14,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943389827] [2023-11-29 04:24:14,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943389827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:14,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:14,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975690211] [2023-11-29 04:24:14,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:14,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:14,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:14,816 INFO L87 Difference]: Start difference. First operand 299 states and 366 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:16,029 INFO L93 Difference]: Finished difference Result 493 states and 582 transitions. [2023-11-29 04:24:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:24:16,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2023-11-29 04:24:16,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:16,032 INFO L225 Difference]: With dead ends: 493 [2023-11-29 04:24:16,032 INFO L226 Difference]: Without dead ends: 492 [2023-11-29 04:24:16,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:24:16,033 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 318 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:16,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 421 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:24:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-29 04:24:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 309. [2023-11-29 04:24:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 235 states have (on average 1.3659574468085107) internal successors, (321), 278 states have internal predecessors, (321), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 04:24:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 377 transitions. [2023-11-29 04:24:16,057 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 377 transitions. Word has length 78 [2023-11-29 04:24:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:16,057 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 377 transitions. [2023-11-29 04:24:16,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 377 transitions. [2023-11-29 04:24:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:24:16,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:16,058 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:16,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 04:24:16,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:16,258 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:16,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1000190298, now seen corresponding path program 1 times [2023-11-29 04:24:16,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:16,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538996266] [2023-11-29 04:24:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:16,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:16,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:16,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493420740] [2023-11-29 04:24:16,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:16,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:16,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:16,265 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:16,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 04:24:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:16,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:16,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:16,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538996266] [2023-11-29 04:24:16,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493420740] [2023-11-29 04:24:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493420740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:16,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970946893] [2023-11-29 04:24:16,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:16,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:16,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:16,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:16,882 INFO L87 Difference]: Start difference. First operand 309 states and 377 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:17,999 INFO L93 Difference]: Finished difference Result 473 states and 552 transitions. [2023-11-29 04:24:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:24:17,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2023-11-29 04:24:17,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:18,001 INFO L225 Difference]: With dead ends: 473 [2023-11-29 04:24:18,001 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 04:24:18,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:24:18,002 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 707 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:18,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 311 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:24:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 04:24:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 388. [2023-11-29 04:24:18,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 306 states have (on average 1.434640522875817) internal successors, (439), 349 states have internal predecessors, (439), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 04:24:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 511 transitions. [2023-11-29 04:24:18,048 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 511 transitions. Word has length 79 [2023-11-29 04:24:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:18,049 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 511 transitions. [2023-11-29 04:24:18,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 511 transitions. [2023-11-29 04:24:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:24:18,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:18,050 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:18,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 04:24:18,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 04:24:18,250 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:18,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:18,251 INFO L85 PathProgramCache]: Analyzing trace with hash 941128232, now seen corresponding path program 1 times [2023-11-29 04:24:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:18,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504406486] [2023-11-29 04:24:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:18,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:18,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860417359] [2023-11-29 04:24:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:18,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:18,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:18,263 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:18,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 04:24:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:18,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:18,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:18,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:18,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:18,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504406486] [2023-11-29 04:24:18,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:18,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860417359] [2023-11-29 04:24:18,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860417359] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:18,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:18,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445983391] [2023-11-29 04:24:18,825 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:18,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:18,826 INFO L87 Difference]: Start difference. First operand 388 states and 511 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:19,852 INFO L93 Difference]: Finished difference Result 468 states and 546 transitions. [2023-11-29 04:24:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:24:19,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 80 [2023-11-29 04:24:19,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:19,855 INFO L225 Difference]: With dead ends: 468 [2023-11-29 04:24:19,855 INFO L226 Difference]: Without dead ends: 463 [2023-11-29 04:24:19,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:24:19,856 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 381 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:19,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 256 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:24:19,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-29 04:24:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 387. [2023-11-29 04:24:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.4131147540983606) internal successors, (431), 348 states have internal predecessors, (431), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 04:24:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 503 transitions. [2023-11-29 04:24:19,888 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 503 transitions. Word has length 80 [2023-11-29 04:24:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:19,888 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 503 transitions. [2023-11-29 04:24:19,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 503 transitions. [2023-11-29 04:24:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:24:19,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:19,889 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:19,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 04:24:20,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:20,089 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:20,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:20,090 INFO L85 PathProgramCache]: Analyzing trace with hash -889795812, now seen corresponding path program 1 times [2023-11-29 04:24:20,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:20,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135121398] [2023-11-29 04:24:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:20,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:20,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:20,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993745807] [2023-11-29 04:24:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:20,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:20,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:20,098 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:20,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 04:24:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:20,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:20,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:20,506 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:24:20,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:20,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:20,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135121398] [2023-11-29 04:24:20,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:20,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993745807] [2023-11-29 04:24:20,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993745807] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:20,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:20,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:20,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484126379] [2023-11-29 04:24:20,624 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:20,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:20,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:20,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:20,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:20,625 INFO L87 Difference]: Start difference. First operand 387 states and 503 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:22,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:22,150 INFO L93 Difference]: Finished difference Result 518 states and 634 transitions. [2023-11-29 04:24:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:24:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 81 [2023-11-29 04:24:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:22,153 INFO L225 Difference]: With dead ends: 518 [2023-11-29 04:24:22,153 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 04:24:22,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:24:22,154 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 400 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:22,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 329 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:24:22,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 04:24:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 387. [2023-11-29 04:24:22,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.4098360655737705) internal successors, (430), 348 states have internal predecessors, (430), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 04:24:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 502 transitions. [2023-11-29 04:24:22,186 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 502 transitions. Word has length 81 [2023-11-29 04:24:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:22,187 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 502 transitions. [2023-11-29 04:24:22,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:24:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 502 transitions. [2023-11-29 04:24:22,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 04:24:22,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:22,187 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:22,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:22,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:22,388 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:22,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:22,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1813866326, now seen corresponding path program 1 times [2023-11-29 04:24:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:22,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625058326] [2023-11-29 04:24:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:22,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:22,394 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:22,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096873310] [2023-11-29 04:24:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:22,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:22,395 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:22,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 04:24:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:22,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:24:22,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:22,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:22,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:22,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625058326] [2023-11-29 04:24:22,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:22,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096873310] [2023-11-29 04:24:22,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096873310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:22,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:22,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:22,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494589543] [2023-11-29 04:24:22,903 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:22,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:22,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:22,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:22,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:24:22,905 INFO L87 Difference]: Start difference. First operand 387 states and 502 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:24,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:24,859 INFO L93 Difference]: Finished difference Result 464 states and 537 transitions. [2023-11-29 04:24:24,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:24:24,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82 [2023-11-29 04:24:24,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:24,862 INFO L225 Difference]: With dead ends: 464 [2023-11-29 04:24:24,862 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 04:24:24,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:24:24,863 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 568 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:24,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 294 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:24:24,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 04:24:24,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 379. [2023-11-29 04:24:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 341 states have internal predecessors, (418), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 04:24:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 488 transitions. [2023-11-29 04:24:24,901 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 488 transitions. Word has length 82 [2023-11-29 04:24:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:24,902 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 488 transitions. [2023-11-29 04:24:24,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:24,902 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 488 transitions. [2023-11-29 04:24:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 04:24:24,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:24,902 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:24,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:25,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:25,103 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:25,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:25,103 INFO L85 PathProgramCache]: Analyzing trace with hash -395281186, now seen corresponding path program 1 times [2023-11-29 04:24:25,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841314475] [2023-11-29 04:24:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:25,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:25,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:25,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248976745] [2023-11-29 04:24:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:25,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:25,113 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:25,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 04:24:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:25,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:24:25,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 04:24:25,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:25,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841314475] [2023-11-29 04:24:25,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248976745] [2023-11-29 04:24:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248976745] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:25,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:24:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889956504] [2023-11-29 04:24:25,513 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:25,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:24:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:24:25,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:25,514 INFO L87 Difference]: Start difference. First operand 379 states and 488 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:26,623 INFO L93 Difference]: Finished difference Result 443 states and 537 transitions. [2023-11-29 04:24:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:24:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2023-11-29 04:24:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:26,626 INFO L225 Difference]: With dead ends: 443 [2023-11-29 04:24:26,626 INFO L226 Difference]: Without dead ends: 438 [2023-11-29 04:24:26,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:24:26,627 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 315 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:26,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 324 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:24:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-29 04:24:26,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 373. [2023-11-29 04:24:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 297 states have (on average 1.3636363636363635) internal successors, (405), 335 states have internal predecessors, (405), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 04:24:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 475 transitions. [2023-11-29 04:24:26,663 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 475 transitions. Word has length 83 [2023-11-29 04:24:26,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:26,664 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 475 transitions. [2023-11-29 04:24:26,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:24:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 475 transitions. [2023-11-29 04:24:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 04:24:26,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:26,665 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:26,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 04:24:26,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 04:24:26,865 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:26,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash -979740629, now seen corresponding path program 1 times [2023-11-29 04:24:26,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:26,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109547744] [2023-11-29 04:24:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:26,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:26,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573862559] [2023-11-29 04:24:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:26,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:26,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:26,874 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:26,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 04:24:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:26,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:24:26,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:24:27,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109547744] [2023-11-29 04:24:27,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573862559] [2023-11-29 04:24:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573862559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:27,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:24:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716683523] [2023-11-29 04:24:27,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:27,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:24:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:24:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:24:27,723 INFO L87 Difference]: Start difference. First operand 373 states and 475 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 04:24:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:30,477 INFO L93 Difference]: Finished difference Result 586 states and 706 transitions. [2023-11-29 04:24:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:24:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 89 [2023-11-29 04:24:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:30,481 INFO L225 Difference]: With dead ends: 586 [2023-11-29 04:24:30,481 INFO L226 Difference]: Without dead ends: 582 [2023-11-29 04:24:30,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:24:30,482 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 670 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:30,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 428 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:24:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-29 04:24:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 478. [2023-11-29 04:24:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 391 states have (on average 1.3785166240409208) internal successors, (539), 429 states have internal predecessors, (539), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:24:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 631 transitions. [2023-11-29 04:24:30,546 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 631 transitions. Word has length 89 [2023-11-29 04:24:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:30,547 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 631 transitions. [2023-11-29 04:24:30,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 04:24:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 631 transitions. [2023-11-29 04:24:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 04:24:30,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:30,548 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:30,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 04:24:30,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:30,748 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:30,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash -307188350, now seen corresponding path program 1 times [2023-11-29 04:24:30,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840019995] [2023-11-29 04:24:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:30,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807290556] [2023-11-29 04:24:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:30,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:30,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:30,756 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:30,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 04:24:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:30,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:24:30,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:24:31,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:33,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:33,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840019995] [2023-11-29 04:24:33,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:33,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807290556] [2023-11-29 04:24:33,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807290556] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:33,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:33,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:24:33,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437578351] [2023-11-29 04:24:33,922 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:33,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:33,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=102, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:24:33,923 INFO L87 Difference]: Start difference. First operand 478 states and 631 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 04:24:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:34,463 INFO L93 Difference]: Finished difference Result 486 states and 635 transitions. [2023-11-29 04:24:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:24:34,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 90 [2023-11-29 04:24:34,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:34,466 INFO L225 Difference]: With dead ends: 486 [2023-11-29 04:24:34,466 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 04:24:34,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-11-29 04:24:34,467 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:34,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 411 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:24:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 04:24:34,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 458. [2023-11-29 04:24:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 378 states have (on average 1.3280423280423281) internal successors, (502), 411 states have internal predecessors, (502), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 04:24:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 590 transitions. [2023-11-29 04:24:34,521 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 590 transitions. Word has length 90 [2023-11-29 04:24:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:34,522 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 590 transitions. [2023-11-29 04:24:34,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 04:24:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 590 transitions. [2023-11-29 04:24:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 04:24:34,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:34,523 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:34,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 04:24:34,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:34,723 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:34,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:34,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1144741604, now seen corresponding path program 1 times [2023-11-29 04:24:34,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:34,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011104534] [2023-11-29 04:24:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:34,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013415857] [2023-11-29 04:24:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:34,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:34,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:34,735 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:34,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 04:24:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:34,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:24:34,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 04:24:35,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:35,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:35,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011104534] [2023-11-29 04:24:35,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:35,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013415857] [2023-11-29 04:24:35,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013415857] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:35,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:35,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:24:35,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722169279] [2023-11-29 04:24:35,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:35,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:24:35,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:35,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:24:35,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:35,292 INFO L87 Difference]: Start difference. First operand 458 states and 590 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:24:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:36,035 INFO L93 Difference]: Finished difference Result 617 states and 752 transitions. [2023-11-29 04:24:36,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:24:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 92 [2023-11-29 04:24:36,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:36,039 INFO L225 Difference]: With dead ends: 617 [2023-11-29 04:24:36,039 INFO L226 Difference]: Without dead ends: 616 [2023-11-29 04:24:36,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:24:36,040 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 452 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:36,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 262 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:24:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-29 04:24:36,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 458. [2023-11-29 04:24:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 411 states have internal predecessors, (500), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 04:24:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 588 transitions. [2023-11-29 04:24:36,084 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 588 transitions. Word has length 92 [2023-11-29 04:24:36,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:36,084 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 588 transitions. [2023-11-29 04:24:36,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:24:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 588 transitions. [2023-11-29 04:24:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:24:36,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:36,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:36,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:36,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 04:24:36,285 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:36,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1127251439, now seen corresponding path program 1 times [2023-11-29 04:24:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:36,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744773532] [2023-11-29 04:24:36,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:36,293 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:36,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495640171] [2023-11-29 04:24:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:36,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:36,295 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:36,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 04:24:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:36,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:24:36,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:24:36,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:36,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:36,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744773532] [2023-11-29 04:24:36,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:36,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495640171] [2023-11-29 04:24:36,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495640171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:36,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:36,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:24:36,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332465932] [2023-11-29 04:24:36,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:36,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:24:36,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:36,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:24:36,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:36,600 INFO L87 Difference]: Start difference. First operand 458 states and 588 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:24:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:37,286 INFO L93 Difference]: Finished difference Result 466 states and 588 transitions. [2023-11-29 04:24:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:24:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2023-11-29 04:24:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:37,289 INFO L225 Difference]: With dead ends: 466 [2023-11-29 04:24:37,289 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 04:24:37,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:37,290 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 154 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:37,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 127 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:24:37,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 04:24:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 383. [2023-11-29 04:24:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 344 states have internal predecessors, (400), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 04:24:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 472 transitions. [2023-11-29 04:24:37,325 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 472 transitions. Word has length 93 [2023-11-29 04:24:37,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:37,326 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 472 transitions. [2023-11-29 04:24:37,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:24:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 472 transitions. [2023-11-29 04:24:37,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 04:24:37,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:37,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:37,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 04:24:37,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 04:24:37,528 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:37,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 585056326, now seen corresponding path program 1 times [2023-11-29 04:24:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:37,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488748057] [2023-11-29 04:24:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:37,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:37,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506122174] [2023-11-29 04:24:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:37,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:37,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:37,535 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:37,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 04:24:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:37,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:24:37,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 04:24:38,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:38,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:38,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488748057] [2023-11-29 04:24:38,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:38,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506122174] [2023-11-29 04:24:38,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506122174] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:38,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:38,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:24:38,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36548722] [2023-11-29 04:24:38,485 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:38,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:24:38,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:38,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:24:38,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:24:38,487 INFO L87 Difference]: Start difference. First operand 383 states and 472 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 04:24:42,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:24:45,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:24:50,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:24:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:55,874 INFO L93 Difference]: Finished difference Result 477 states and 571 transitions. [2023-11-29 04:24:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:24:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2023-11-29 04:24:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:55,877 INFO L225 Difference]: With dead ends: 477 [2023-11-29 04:24:55,877 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 04:24:55,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:24:55,877 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 266 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:55,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 434 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1148 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2023-11-29 04:24:55,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 04:24:55,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 374. [2023-11-29 04:24:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 308 states have (on average 1.2629870129870129) internal successors, (389), 336 states have internal predecessors, (389), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 04:24:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 459 transitions. [2023-11-29 04:24:55,915 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 459 transitions. Word has length 94 [2023-11-29 04:24:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:55,915 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 459 transitions. [2023-11-29 04:24:55,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 04:24:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 459 transitions. [2023-11-29 04:24:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 04:24:55,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:55,916 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:55,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:56,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 04:24:56,117 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -397659918, now seen corresponding path program 1 times [2023-11-29 04:24:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029843415] [2023-11-29 04:24:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:56,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:56,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589096010] [2023-11-29 04:24:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:56,125 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:56,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 04:24:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:56,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:56,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:56,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:56,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029843415] [2023-11-29 04:24:56,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589096010] [2023-11-29 04:24:56,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589096010] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:56,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:56,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 04:24:56,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488002140] [2023-11-29 04:24:56,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:56,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:24:56,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:24:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:24:56,333 INFO L87 Difference]: Start difference. First operand 374 states and 459 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:24:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:56,649 INFO L93 Difference]: Finished difference Result 389 states and 469 transitions. [2023-11-29 04:24:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:24:56,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 98 [2023-11-29 04:24:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:56,653 INFO L225 Difference]: With dead ends: 389 [2023-11-29 04:24:56,653 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 04:24:56,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:24:56,654 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 109 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:56,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 72 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 04:24:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 343. [2023-11-29 04:24:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 282 states have (on average 1.2730496453900708) internal successors, (359), 308 states have internal predecessors, (359), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:24:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 423 transitions. [2023-11-29 04:24:56,692 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 423 transitions. Word has length 98 [2023-11-29 04:24:56,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:56,692 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 423 transitions. [2023-11-29 04:24:56,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:24:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 423 transitions. [2023-11-29 04:24:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:24:56,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:56,693 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:56,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:56,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:56,894 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:56,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:56,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1942787823, now seen corresponding path program 1 times [2023-11-29 04:24:56,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:56,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759079806] [2023-11-29 04:24:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:56,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:56,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554634013] [2023-11-29 04:24:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:56,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:56,901 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:56,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 04:24:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:56,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:24:56,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:57,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:57,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:57,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759079806] [2023-11-29 04:24:57,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:57,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554634013] [2023-11-29 04:24:57,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554634013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:57,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:57,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:24:57,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214474614] [2023-11-29 04:24:57,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:57,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:57,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:57,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:57,201 INFO L87 Difference]: Start difference. First operand 343 states and 423 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 04:24:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:57,606 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2023-11-29 04:24:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:24:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 103 [2023-11-29 04:24:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:57,610 INFO L225 Difference]: With dead ends: 718 [2023-11-29 04:24:57,610 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 04:24:57,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:24:57,611 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 650 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:57,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 541 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 04:24:57,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 495. [2023-11-29 04:24:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 418 states have (on average 1.3181818181818181) internal successors, (551), 444 states have internal predecessors, (551), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 04:24:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 647 transitions. [2023-11-29 04:24:57,674 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 647 transitions. Word has length 103 [2023-11-29 04:24:57,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:57,675 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 647 transitions. [2023-11-29 04:24:57,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 04:24:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 647 transitions. [2023-11-29 04:24:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:24:57,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:57,676 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:57,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 04:24:57,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:57,876 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:57,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash -183187217, now seen corresponding path program 1 times [2023-11-29 04:24:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200812466] [2023-11-29 04:24:57,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:57,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:57,884 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:57,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333897615] [2023-11-29 04:24:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:57,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:57,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:57,885 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:57,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 04:24:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:57,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:57,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:58,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:58,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:58,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200812466] [2023-11-29 04:24:58,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:58,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333897615] [2023-11-29 04:24:58,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333897615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:58,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:58,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:24:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597451466] [2023-11-29 04:24:58,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:58,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:58,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:58,226 INFO L87 Difference]: Start difference. First operand 495 states and 647 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 04:24:58,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:58,586 INFO L93 Difference]: Finished difference Result 644 states and 816 transitions. [2023-11-29 04:24:58,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:24:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 103 [2023-11-29 04:24:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:58,589 INFO L225 Difference]: With dead ends: 644 [2023-11-29 04:24:58,589 INFO L226 Difference]: Without dead ends: 643 [2023-11-29 04:24:58,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:24:58,590 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 360 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:58,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 414 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-11-29 04:24:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 583. [2023-11-29 04:24:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 497 states have (on average 1.3340040241448692) internal successors, (663), 523 states have internal predecessors, (663), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 04:24:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 777 transitions. [2023-11-29 04:24:58,655 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 777 transitions. Word has length 103 [2023-11-29 04:24:58,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:58,656 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 777 transitions. [2023-11-29 04:24:58,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 04:24:58,656 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 777 transitions. [2023-11-29 04:24:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:24:58,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:58,657 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:58,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 04:24:58,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 04:24:58,857 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:58,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash -183173315, now seen corresponding path program 1 times [2023-11-29 04:24:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:58,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959914869] [2023-11-29 04:24:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:58,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:58,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26453714] [2023-11-29 04:24:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:58,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:58,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:58,866 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:58,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 04:24:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:58,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:58,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:59,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:59,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:59,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959914869] [2023-11-29 04:24:59,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:59,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26453714] [2023-11-29 04:24:59,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26453714] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:59,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:59,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:24:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417055603] [2023-11-29 04:24:59,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:59,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:59,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:59,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:24:59,202 INFO L87 Difference]: Start difference. First operand 583 states and 777 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 04:24:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:59,592 INFO L93 Difference]: Finished difference Result 802 states and 1025 transitions. [2023-11-29 04:24:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:24:59,593 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 103 [2023-11-29 04:24:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:59,597 INFO L225 Difference]: With dead ends: 802 [2023-11-29 04:24:59,597 INFO L226 Difference]: Without dead ends: 801 [2023-11-29 04:24:59,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:24:59,598 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 857 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:59,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 342 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2023-11-29 04:24:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 642. [2023-11-29 04:24:59,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 550 states have (on average 1.3127272727272727) internal successors, (722), 576 states have internal predecessors, (722), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-29 04:24:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 848 transitions. [2023-11-29 04:24:59,685 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 848 transitions. Word has length 103 [2023-11-29 04:24:59,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:59,685 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 848 transitions. [2023-11-29 04:24:59,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 04:24:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 848 transitions. [2023-11-29 04:24:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:24:59,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:59,686 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:59,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 04:24:59,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 04:24:59,887 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:24:59,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1801301019, now seen corresponding path program 1 times [2023-11-29 04:24:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:59,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523999589] [2023-11-29 04:24:59,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:59,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867423646] [2023-11-29 04:24:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:59,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:59,894 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:59,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 04:24:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:59,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:24:59,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:00,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:00,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:00,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523999589] [2023-11-29 04:25:00,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:00,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867423646] [2023-11-29 04:25:00,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867423646] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:00,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:00,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:25:00,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619648294] [2023-11-29 04:25:00,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:00,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:00,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:00,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:25:00,220 INFO L87 Difference]: Start difference. First operand 642 states and 848 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:25:01,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:01,509 INFO L93 Difference]: Finished difference Result 1034 states and 1294 transitions. [2023-11-29 04:25:01,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:01,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 106 [2023-11-29 04:25:01,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:01,515 INFO L225 Difference]: With dead ends: 1034 [2023-11-29 04:25:01,515 INFO L226 Difference]: Without dead ends: 1032 [2023-11-29 04:25:01,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:01,516 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 286 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:01,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 257 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:25:01,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-11-29 04:25:01,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 831. [2023-11-29 04:25:01,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 721 states have (on average 1.3134535367545077) internal successors, (947), 747 states have internal predecessors, (947), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 04:25:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1109 transitions. [2023-11-29 04:25:01,622 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1109 transitions. Word has length 106 [2023-11-29 04:25:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:01,622 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1109 transitions. [2023-11-29 04:25:01,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:25:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1109 transitions. [2023-11-29 04:25:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 04:25:01,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:01,624 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:01,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 04:25:01,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 04:25:01,824 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:01,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:01,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2107109653, now seen corresponding path program 1 times [2023-11-29 04:25:01,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:01,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919711269] [2023-11-29 04:25:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:01,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:01,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:01,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030519448] [2023-11-29 04:25:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:01,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:01,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:01,834 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:01,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 04:25:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:01,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:25:01,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:02,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:02,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919711269] [2023-11-29 04:25:02,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030519448] [2023-11-29 04:25:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030519448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:02,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:02,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:25:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984028989] [2023-11-29 04:25:02,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:02,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:02,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:02,268 INFO L87 Difference]: Start difference. First operand 831 states and 1109 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:03,035 INFO L93 Difference]: Finished difference Result 1001 states and 1293 transitions. [2023-11-29 04:25:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2023-11-29 04:25:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:03,040 INFO L225 Difference]: With dead ends: 1001 [2023-11-29 04:25:03,040 INFO L226 Difference]: Without dead ends: 997 [2023-11-29 04:25:03,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:25:03,041 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 241 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:03,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 221 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:25:03,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-11-29 04:25:03,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 827. [2023-11-29 04:25:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 721 states have (on average 1.2690707350901527) internal successors, (915), 743 states have internal predecessors, (915), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 04:25:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1077 transitions. [2023-11-29 04:25:03,145 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1077 transitions. Word has length 109 [2023-11-29 04:25:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:03,146 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1077 transitions. [2023-11-29 04:25:03,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1077 transitions. [2023-11-29 04:25:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 04:25:03,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:03,147 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:03,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:03,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 04:25:03,347 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:03,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash 895889854, now seen corresponding path program 1 times [2023-11-29 04:25:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992305262] [2023-11-29 04:25:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:03,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:03,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:03,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291934891] [2023-11-29 04:25:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:03,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:03,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:03,356 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:03,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 04:25:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:03,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:25:03,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:03,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:03,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992305262] [2023-11-29 04:25:03,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291934891] [2023-11-29 04:25:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291934891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:03,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:03,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:25:03,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829114371] [2023-11-29 04:25:03,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:03,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:03,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:03,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:03,776 INFO L87 Difference]: Start difference. First operand 827 states and 1077 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:04,150 INFO L93 Difference]: Finished difference Result 877 states and 1114 transitions. [2023-11-29 04:25:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:04,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2023-11-29 04:25:04,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:04,154 INFO L225 Difference]: With dead ends: 877 [2023-11-29 04:25:04,154 INFO L226 Difference]: Without dead ends: 875 [2023-11-29 04:25:04,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:25:04,155 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 191 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:04,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 145 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:25:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-29 04:25:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 843. [2023-11-29 04:25:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 735 states have (on average 1.2653061224489797) internal successors, (930), 757 states have internal predecessors, (930), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 04:25:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1096 transitions. [2023-11-29 04:25:04,295 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1096 transitions. Word has length 110 [2023-11-29 04:25:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:04,295 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1096 transitions. [2023-11-29 04:25:04,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1096 transitions. [2023-11-29 04:25:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 04:25:04,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:04,296 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:04,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:04,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 04:25:04,496 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:04,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash 815465278, now seen corresponding path program 2 times [2023-11-29 04:25:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:04,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293207143] [2023-11-29 04:25:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:04,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:04,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235227681] [2023-11-29 04:25:04,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:04,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:04,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:04,504 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:04,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 04:25:04,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:04,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:04,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:25:04,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:04,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:04,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:04,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293207143] [2023-11-29 04:25:04,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:04,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235227681] [2023-11-29 04:25:04,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235227681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:04,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:04,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:25:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279914530] [2023-11-29 04:25:04,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:04,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:04,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:04,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:04,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:04,940 INFO L87 Difference]: Start difference. First operand 843 states and 1096 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:05,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:05,602 INFO L93 Difference]: Finished difference Result 939 states and 1199 transitions. [2023-11-29 04:25:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2023-11-29 04:25:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:05,606 INFO L225 Difference]: With dead ends: 939 [2023-11-29 04:25:05,606 INFO L226 Difference]: Without dead ends: 937 [2023-11-29 04:25:05,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:25:05,607 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 144 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:05,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 167 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:25:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-11-29 04:25:05,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 876. [2023-11-29 04:25:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 764 states have (on average 1.2657068062827226) internal successors, (967), 786 states have internal predecessors, (967), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:25:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1141 transitions. [2023-11-29 04:25:05,766 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1141 transitions. Word has length 110 [2023-11-29 04:25:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:05,767 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1141 transitions. [2023-11-29 04:25:05,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1141 transitions. [2023-11-29 04:25:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:25:05,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:05,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:05,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 04:25:05,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 04:25:05,968 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:05,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:05,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1956692192, now seen corresponding path program 1 times [2023-11-29 04:25:05,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:05,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848397006] [2023-11-29 04:25:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:05,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:05,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063262453] [2023-11-29 04:25:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:05,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:05,975 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:05,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 04:25:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:06,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:25:06,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:06,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:06,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:06,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848397006] [2023-11-29 04:25:06,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:06,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063262453] [2023-11-29 04:25:06,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063262453] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:06,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:06,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-29 04:25:06,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24139855] [2023-11-29 04:25:06,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:06,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:25:06,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:25:06,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:25:06,598 INFO L87 Difference]: Start difference. First operand 876 states and 1141 transitions. Second operand has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:25:10,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:25:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:12,020 INFO L93 Difference]: Finished difference Result 948 states and 1212 transitions. [2023-11-29 04:25:12,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:25:12,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 112 [2023-11-29 04:25:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:12,025 INFO L225 Difference]: With dead ends: 948 [2023-11-29 04:25:12,025 INFO L226 Difference]: Without dead ends: 944 [2023-11-29 04:25:12,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:12,026 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 253 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:12,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 348 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 04:25:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-11-29 04:25:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 897. [2023-11-29 04:25:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 786 states have (on average 1.2582697201017812) internal successors, (989), 807 states have internal predecessors, (989), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:25:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1163 transitions. [2023-11-29 04:25:12,139 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1163 transitions. Word has length 112 [2023-11-29 04:25:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:12,140 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1163 transitions. [2023-11-29 04:25:12,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:25:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1163 transitions. [2023-11-29 04:25:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:25:12,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:12,141 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:12,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 04:25:12,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:12,341 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:12,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:12,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1978085984, now seen corresponding path program 2 times [2023-11-29 04:25:12,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:12,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289734154] [2023-11-29 04:25:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:12,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:12,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:12,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449822869] [2023-11-29 04:25:12,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:12,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:12,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:12,354 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 04:25:12,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:12,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:12,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:25:12,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:12,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:12,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:12,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289734154] [2023-11-29 04:25:12,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:12,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449822869] [2023-11-29 04:25:12,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449822869] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:12,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:12,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:25:12,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010282417] [2023-11-29 04:25:12,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:12,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:12,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:12,806 INFO L87 Difference]: Start difference. First operand 897 states and 1163 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:13,399 INFO L93 Difference]: Finished difference Result 957 states and 1218 transitions. [2023-11-29 04:25:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 112 [2023-11-29 04:25:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:13,403 INFO L225 Difference]: With dead ends: 957 [2023-11-29 04:25:13,403 INFO L226 Difference]: Without dead ends: 956 [2023-11-29 04:25:13,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:13,403 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 87 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:13,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 261 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:25:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-11-29 04:25:13,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 897. [2023-11-29 04:25:13,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 786 states have (on average 1.256997455470738) internal successors, (988), 807 states have internal predecessors, (988), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:25:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1162 transitions. [2023-11-29 04:25:13,523 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1162 transitions. Word has length 112 [2023-11-29 04:25:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:13,523 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1162 transitions. [2023-11-29 04:25:13,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1162 transitions. [2023-11-29 04:25:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:25:13,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:13,524 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:13,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 04:25:13,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 04:25:13,725 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:13,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash 527915865, now seen corresponding path program 1 times [2023-11-29 04:25:13,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:13,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739523986] [2023-11-29 04:25:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:13,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:13,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006818264] [2023-11-29 04:25:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:13,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:13,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:13,732 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:13,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 04:25:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:13,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:25:13,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:14,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:14,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:14,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739523986] [2023-11-29 04:25:14,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:14,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006818264] [2023-11-29 04:25:14,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006818264] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:14,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:14,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:25:14,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566395370] [2023-11-29 04:25:14,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:14,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:25:14,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:14,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:25:14,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:25:14,348 INFO L87 Difference]: Start difference. First operand 897 states and 1162 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:15,639 INFO L93 Difference]: Finished difference Result 990 states and 1256 transitions. [2023-11-29 04:25:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:15,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2023-11-29 04:25:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:15,643 INFO L225 Difference]: With dead ends: 990 [2023-11-29 04:25:15,644 INFO L226 Difference]: Without dead ends: 986 [2023-11-29 04:25:15,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:25:15,644 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 265 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:15,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 191 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:25:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-11-29 04:25:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 932. [2023-11-29 04:25:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 817 states have (on average 1.2460220318237454) internal successors, (1018), 838 states have internal predecessors, (1018), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 04:25:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1200 transitions. [2023-11-29 04:25:15,821 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1200 transitions. Word has length 113 [2023-11-29 04:25:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:15,822 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1200 transitions. [2023-11-29 04:25:15,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1200 transitions. [2023-11-29 04:25:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:25:15,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:15,823 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:15,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 04:25:16,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:16,023 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:16,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1191123417, now seen corresponding path program 2 times [2023-11-29 04:25:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:16,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572438953] [2023-11-29 04:25:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:16,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:16,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:16,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661140935] [2023-11-29 04:25:16,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:16,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:16,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:16,032 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:16,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 04:25:16,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:16,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:16,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:25:16,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:16,476 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:16,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 04:25:16,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572438953] [2023-11-29 04:25:16,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:16,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661140935] [2023-11-29 04:25:16,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661140935] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:16,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:16,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 04:25:16,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372529695] [2023-11-29 04:25:16,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:16,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:25:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:25:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:25:16,647 INFO L87 Difference]: Start difference. First operand 932 states and 1200 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:25:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:18,505 INFO L93 Difference]: Finished difference Result 932 states and 1200 transitions. [2023-11-29 04:25:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 113 [2023-11-29 04:25:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:18,510 INFO L225 Difference]: With dead ends: 932 [2023-11-29 04:25:18,510 INFO L226 Difference]: Without dead ends: 931 [2023-11-29 04:25:18,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:25:18,511 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:18,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 125 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:25:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-11-29 04:25:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2023-11-29 04:25:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 817 states have (on average 1.233782129742962) internal successors, (1008), 837 states have internal predecessors, (1008), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 04:25:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1190 transitions. [2023-11-29 04:25:18,640 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1190 transitions. Word has length 113 [2023-11-29 04:25:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:18,640 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1190 transitions. [2023-11-29 04:25:18,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:25:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1190 transitions. [2023-11-29 04:25:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 04:25:18,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:18,641 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:18,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 04:25:18,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:18,842 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:18,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash -814477310, now seen corresponding path program 1 times [2023-11-29 04:25:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933123961] [2023-11-29 04:25:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:18,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:18,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053699195] [2023-11-29 04:25:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:18,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:18,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:18,851 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:18,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 04:25:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:18,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:25:18,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:19,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:19,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:19,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933123961] [2023-11-29 04:25:19,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:19,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053699195] [2023-11-29 04:25:19,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053699195] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:19,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:19,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:25:19,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144482292] [2023-11-29 04:25:19,827 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:19,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:25:19,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:19,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:25:19,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:25:19,828 INFO L87 Difference]: Start difference. First operand 931 states and 1190 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:20,778 INFO L93 Difference]: Finished difference Result 980 states and 1231 transitions. [2023-11-29 04:25:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2023-11-29 04:25:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:20,783 INFO L225 Difference]: With dead ends: 980 [2023-11-29 04:25:20,784 INFO L226 Difference]: Without dead ends: 963 [2023-11-29 04:25:20,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:25:20,785 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 245 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:20,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 275 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:25:20,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-29 04:25:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 907. [2023-11-29 04:25:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 796 states have (on average 1.2273869346733668) internal successors, (977), 816 states have internal predecessors, (977), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 04:25:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1153 transitions. [2023-11-29 04:25:20,946 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1153 transitions. Word has length 114 [2023-11-29 04:25:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:20,946 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1153 transitions. [2023-11-29 04:25:20,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1153 transitions. [2023-11-29 04:25:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 04:25:20,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:20,948 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:20,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 04:25:21,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:21,148 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:21,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1629868459, now seen corresponding path program 1 times [2023-11-29 04:25:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:21,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111063209] [2023-11-29 04:25:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:21,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:21,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94278753] [2023-11-29 04:25:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:21,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:21,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:21,158 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:21,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 04:25:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:21,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:25:21,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-29 04:25:21,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:25:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:21,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111063209] [2023-11-29 04:25:21,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:21,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94278753] [2023-11-29 04:25:21,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94278753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:25:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:25:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:25:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981124067] [2023-11-29 04:25:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:25:21,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:25:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:25:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:25:21,396 INFO L87 Difference]: Start difference. First operand 907 states and 1153 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:25:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:21,788 INFO L93 Difference]: Finished difference Result 929 states and 1170 transitions. [2023-11-29 04:25:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 115 [2023-11-29 04:25:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:21,793 INFO L225 Difference]: With dead ends: 929 [2023-11-29 04:25:21,793 INFO L226 Difference]: Without dead ends: 917 [2023-11-29 04:25:21,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:25:21,793 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 86 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:21,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 108 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:25:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2023-11-29 04:25:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 896. [2023-11-29 04:25:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 786 states have (on average 1.2239185750636132) internal successors, (962), 806 states have internal predecessors, (962), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 04:25:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1136 transitions. [2023-11-29 04:25:21,919 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1136 transitions. Word has length 115 [2023-11-29 04:25:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:21,919 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1136 transitions. [2023-11-29 04:25:21,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:25:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1136 transitions. [2023-11-29 04:25:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 04:25:21,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:21,920 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:21,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 04:25:22,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:22,121 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:22,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1729879678, now seen corresponding path program 2 times [2023-11-29 04:25:22,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:22,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774485948] [2023-11-29 04:25:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:22,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:22,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266639945] [2023-11-29 04:25:22,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:22,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:22,129 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:22,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 04:25:22,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:22,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:22,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:25:22,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:25:22,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774485948] [2023-11-29 04:25:23,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266639945] [2023-11-29 04:25:23,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266639945] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:23,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:23,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:25:23,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633630460] [2023-11-29 04:25:23,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:23,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:25:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:23,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:25:23,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2023-11-29 04:25:23,900 INFO L87 Difference]: Start difference. First operand 896 states and 1136 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:24,881 INFO L93 Difference]: Finished difference Result 946 states and 1187 transitions. [2023-11-29 04:25:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:25:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2023-11-29 04:25:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:24,885 INFO L225 Difference]: With dead ends: 946 [2023-11-29 04:25:24,885 INFO L226 Difference]: Without dead ends: 942 [2023-11-29 04:25:24,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=116, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:25:24,886 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:24,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 250 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:25:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-11-29 04:25:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 850. [2023-11-29 04:25:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 750 states have (on average 1.208) internal successors, (906), 766 states have internal predecessors, (906), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 04:25:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1068 transitions. [2023-11-29 04:25:25,053 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1068 transitions. Word has length 114 [2023-11-29 04:25:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:25,053 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1068 transitions. [2023-11-29 04:25:25,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1068 transitions. [2023-11-29 04:25:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 04:25:25,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:25,054 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:25,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:25,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:25,255 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:25,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash -18818554, now seen corresponding path program 2 times [2023-11-29 04:25:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:25,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384195658] [2023-11-29 04:25:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:25,263 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:25,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936628349] [2023-11-29 04:25:25,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:25,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:25,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:25,264 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:25,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 04:25:25,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:25,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:25,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:25:25,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-29 04:25:26,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:26,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384195658] [2023-11-29 04:25:26,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936628349] [2023-11-29 04:25:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936628349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:26,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:25:26,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351598059] [2023-11-29 04:25:26,248 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:26,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:25:26,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:26,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:25:26,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:26,249 INFO L87 Difference]: Start difference. First operand 850 states and 1068 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:29,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:25:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:30,630 INFO L93 Difference]: Finished difference Result 898 states and 1118 transitions. [2023-11-29 04:25:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:25:30,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-11-29 04:25:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:30,633 INFO L225 Difference]: With dead ends: 898 [2023-11-29 04:25:30,633 INFO L226 Difference]: Without dead ends: 896 [2023-11-29 04:25:30,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:25:30,633 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 344 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:30,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 507 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 04:25:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-29 04:25:30,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 850. [2023-11-29 04:25:30,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 750 states have (on average 1.2053333333333334) internal successors, (904), 766 states have internal predecessors, (904), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 04:25:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1066 transitions. [2023-11-29 04:25:30,767 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1066 transitions. Word has length 120 [2023-11-29 04:25:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:30,767 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1066 transitions. [2023-11-29 04:25:30,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1066 transitions. [2023-11-29 04:25:30,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 04:25:30,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:30,769 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:30,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 04:25:30,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:30,969 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:30,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1592285048, now seen corresponding path program 1 times [2023-11-29 04:25:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:30,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716368097] [2023-11-29 04:25:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:30,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:30,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:30,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481349583] [2023-11-29 04:25:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:30,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:30,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:30,976 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:30,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 04:25:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:31,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:25:31,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 3 proven. 48 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 04:25:31,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:34,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716368097] [2023-11-29 04:25:34,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481349583] [2023-11-29 04:25:34,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481349583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:34,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:34,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:25:34,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020737265] [2023-11-29 04:25:34,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:34,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:25:34,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:34,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:25:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:25:34,793 INFO L87 Difference]: Start difference. First operand 850 states and 1066 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:35,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:35,920 INFO L93 Difference]: Finished difference Result 1013 states and 1256 transitions. [2023-11-29 04:25:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:25:35,921 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-11-29 04:25:35,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:35,924 INFO L225 Difference]: With dead ends: 1013 [2023-11-29 04:25:35,924 INFO L226 Difference]: Without dead ends: 1012 [2023-11-29 04:25:35,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=76, Invalid=195, Unknown=1, NotChecked=0, Total=272 [2023-11-29 04:25:35,924 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 240 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:35,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 418 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:25:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-11-29 04:25:36,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 854. [2023-11-29 04:25:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 753 states have (on average 1.204515272244356) internal successors, (907), 769 states have internal predecessors, (907), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 04:25:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1071 transitions. [2023-11-29 04:25:36,052 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1071 transitions. Word has length 120 [2023-11-29 04:25:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:36,053 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1071 transitions. [2023-11-29 04:25:36,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1071 transitions. [2023-11-29 04:25:36,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:25:36,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:36,054 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:36,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 04:25:36,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 04:25:36,254 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:36,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2145111562, now seen corresponding path program 1 times [2023-11-29 04:25:36,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136060038] [2023-11-29 04:25:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:36,263 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:36,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771316269] [2023-11-29 04:25:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:36,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:36,265 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:36,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 04:25:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:36,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:25:36,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 04:25:36,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:37,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136060038] [2023-11-29 04:25:37,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771316269] [2023-11-29 04:25:37,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771316269] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:37,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:37,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:25:37,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223071003] [2023-11-29 04:25:37,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:37,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:25:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:37,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:25:37,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:25:37,059 INFO L87 Difference]: Start difference. First operand 854 states and 1071 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:38,268 INFO L93 Difference]: Finished difference Result 1005 states and 1248 transitions. [2023-11-29 04:25:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:25:38,269 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 123 [2023-11-29 04:25:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:38,271 INFO L225 Difference]: With dead ends: 1005 [2023-11-29 04:25:38,271 INFO L226 Difference]: Without dead ends: 1004 [2023-11-29 04:25:38,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:25:38,271 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 228 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:38,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 466 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:25:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-11-29 04:25:38,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 857. [2023-11-29 04:25:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 756 states have (on average 1.2037037037037037) internal successors, (910), 772 states have internal predecessors, (910), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 04:25:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1074 transitions. [2023-11-29 04:25:38,392 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1074 transitions. Word has length 123 [2023-11-29 04:25:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:38,392 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1074 transitions. [2023-11-29 04:25:38,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1074 transitions. [2023-11-29 04:25:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 04:25:38,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:38,393 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:38,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 04:25:38,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:38,593 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:38,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:38,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2073949052, now seen corresponding path program 1 times [2023-11-29 04:25:38,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:38,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543961306] [2023-11-29 04:25:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:38,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:38,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:38,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351965227] [2023-11-29 04:25:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:38,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:38,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:38,601 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:38,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 04:25:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:38,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:25:38,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 04:25:39,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:39,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:39,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543961306] [2023-11-29 04:25:39,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:39,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351965227] [2023-11-29 04:25:39,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351965227] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:39,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:39,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:25:39,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354518814] [2023-11-29 04:25:39,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:39,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:25:39,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:39,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:25:39,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:25:39,606 INFO L87 Difference]: Start difference. First operand 857 states and 1074 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:41,593 INFO L93 Difference]: Finished difference Result 1004 states and 1247 transitions. [2023-11-29 04:25:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:25:41,594 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 124 [2023-11-29 04:25:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:41,596 INFO L225 Difference]: With dead ends: 1004 [2023-11-29 04:25:41,596 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 04:25:41,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:25:41,596 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 224 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 312 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:25:41,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 04:25:41,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 929. [2023-11-29 04:25:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 820 states have (on average 1.2060975609756097) internal successors, (989), 836 states have internal predecessors, (989), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 04:25:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1169 transitions. [2023-11-29 04:25:41,765 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1169 transitions. Word has length 124 [2023-11-29 04:25:41,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:41,765 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1169 transitions. [2023-11-29 04:25:41,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1169 transitions. [2023-11-29 04:25:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 04:25:41,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:41,766 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:41,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:41,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 04:25:41,967 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:41,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:41,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1885391059, now seen corresponding path program 1 times [2023-11-29 04:25:41,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:41,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686078115] [2023-11-29 04:25:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:41,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407668287] [2023-11-29 04:25:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:41,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:41,974 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:41,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 04:25:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:42,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:25:42,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 04:25:42,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 04:25:42,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686078115] [2023-11-29 04:25:42,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407668287] [2023-11-29 04:25:42,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407668287] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:42,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:42,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 04:25:42,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658035975] [2023-11-29 04:25:42,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:42,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:25:42,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:42,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:25:42,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:25:42,202 INFO L87 Difference]: Start difference. First operand 929 states and 1169 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:25:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:42,785 INFO L93 Difference]: Finished difference Result 931 states and 1171 transitions. [2023-11-29 04:25:42,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:42,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-11-29 04:25:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:42,788 INFO L225 Difference]: With dead ends: 931 [2023-11-29 04:25:42,788 INFO L226 Difference]: Without dead ends: 909 [2023-11-29 04:25:42,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:42,789 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 62 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:42,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 161 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:25:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-11-29 04:25:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 907. [2023-11-29 04:25:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.2032418952618453) internal successors, (965), 816 states have internal predecessors, (965), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 04:25:42,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1141 transitions. [2023-11-29 04:25:42,925 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1141 transitions. Word has length 126 [2023-11-29 04:25:42,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:42,925 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1141 transitions. [2023-11-29 04:25:42,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:25:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1141 transitions. [2023-11-29 04:25:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:25:42,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:42,926 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:42,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 04:25:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 04:25:43,126 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:43,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -712473141, now seen corresponding path program 1 times [2023-11-29 04:25:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:43,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718791437] [2023-11-29 04:25:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:43,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:43,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104006841] [2023-11-29 04:25:43,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:43,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:43,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:43,134 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:43,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 04:25:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:43,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:25:43,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:25:43,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:43,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:43,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718791437] [2023-11-29 04:25:43,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:43,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104006841] [2023-11-29 04:25:43,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104006841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:43,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:43,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:25:43,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987991347] [2023-11-29 04:25:43,936 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:43,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:25:43,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:43,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:25:43,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:43,937 INFO L87 Difference]: Start difference. First operand 907 states and 1141 transitions. Second operand has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:44,535 INFO L93 Difference]: Finished difference Result 967 states and 1205 transitions. [2023-11-29 04:25:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:44,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 131 [2023-11-29 04:25:44,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:44,537 INFO L225 Difference]: With dead ends: 967 [2023-11-29 04:25:44,537 INFO L226 Difference]: Without dead ends: 966 [2023-11-29 04:25:44,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:44,538 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 122 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:44,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 424 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:25:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-11-29 04:25:44,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 907. [2023-11-29 04:25:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.201995012468828) internal successors, (964), 816 states have internal predecessors, (964), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 04:25:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1140 transitions. [2023-11-29 04:25:44,686 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1140 transitions. Word has length 131 [2023-11-29 04:25:44,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:44,686 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1140 transitions. [2023-11-29 04:25:44,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1140 transitions. [2023-11-29 04:25:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:25:44,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:44,687 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:44,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 04:25:44,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-29 04:25:44,888 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:44,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 637308185, now seen corresponding path program 2 times [2023-11-29 04:25:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232109557] [2023-11-29 04:25:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:44,896 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:44,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997312312] [2023-11-29 04:25:44,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:25:44,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:44,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:44,897 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:44,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 04:25:44,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:25:44,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:44,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:25:44,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-29 04:25:45,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232109557] [2023-11-29 04:25:45,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997312312] [2023-11-29 04:25:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997312312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:45,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:45,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:25:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036622899] [2023-11-29 04:25:45,747 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:45,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:25:45,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:25:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:45,748 INFO L87 Difference]: Start difference. First operand 907 states and 1140 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:25:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:46,717 INFO L93 Difference]: Finished difference Result 1063 states and 1337 transitions. [2023-11-29 04:25:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:25:46,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2023-11-29 04:25:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:46,719 INFO L225 Difference]: With dead ends: 1063 [2023-11-29 04:25:46,719 INFO L226 Difference]: Without dead ends: 1062 [2023-11-29 04:25:46,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:25:46,720 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 160 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:46,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 416 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:25:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-29 04:25:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 907. [2023-11-29 04:25:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.2007481296758105) internal successors, (963), 816 states have internal predecessors, (963), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 04:25:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1139 transitions. [2023-11-29 04:25:46,881 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1139 transitions. Word has length 131 [2023-11-29 04:25:46,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:46,881 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1139 transitions. [2023-11-29 04:25:46,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:25:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1139 transitions. [2023-11-29 04:25:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 04:25:46,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:46,883 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:46,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 04:25:47,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:47,083 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:47,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:47,084 INFO L85 PathProgramCache]: Analyzing trace with hash 441109828, now seen corresponding path program 1 times [2023-11-29 04:25:47,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:47,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10405212] [2023-11-29 04:25:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:47,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:47,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:47,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150829135] [2023-11-29 04:25:47,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:47,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:47,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:47,093 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:47,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 04:25:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:47,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:25:47,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 04:25:47,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:47,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:47,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10405212] [2023-11-29 04:25:47,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:47,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150829135] [2023-11-29 04:25:47,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150829135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:47,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:47,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:25:47,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463377567] [2023-11-29 04:25:47,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:47,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:25:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:47,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:25:47,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:47,984 INFO L87 Difference]: Start difference. First operand 907 states and 1139 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:49,115 INFO L93 Difference]: Finished difference Result 971 states and 1209 transitions. [2023-11-29 04:25:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:25:49,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 134 [2023-11-29 04:25:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:49,118 INFO L225 Difference]: With dead ends: 971 [2023-11-29 04:25:49,118 INFO L226 Difference]: Without dead ends: 970 [2023-11-29 04:25:49,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:25:49,119 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:49,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 457 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:25:49,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-29 04:25:49,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 907. [2023-11-29 04:25:49,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.199501246882793) internal successors, (962), 816 states have internal predecessors, (962), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 04:25:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1138 transitions. [2023-11-29 04:25:49,255 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1138 transitions. Word has length 134 [2023-11-29 04:25:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:49,255 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1138 transitions. [2023-11-29 04:25:49,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:49,256 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1138 transitions. [2023-11-29 04:25:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:25:49,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:49,256 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:49,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 04:25:49,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 04:25:49,457 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:49,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -338569035, now seen corresponding path program 1 times [2023-11-29 04:25:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:49,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850065062] [2023-11-29 04:25:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:49,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:49,468 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:49,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724284964] [2023-11-29 04:25:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:49,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:49,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:49,469 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:49,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 04:25:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:49,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:49,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:49,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:49,872 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850065062] [2023-11-29 04:25:49,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724284964] [2023-11-29 04:25:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724284964] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:49,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:49,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:25:49,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683934516] [2023-11-29 04:25:49,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:49,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:25:49,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:25:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:49,874 INFO L87 Difference]: Start difference. First operand 907 states and 1138 transitions. Second operand has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 04:25:50,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:50,823 INFO L93 Difference]: Finished difference Result 1590 states and 1994 transitions. [2023-11-29 04:25:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:25:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 146 [2023-11-29 04:25:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:50,825 INFO L225 Difference]: With dead ends: 1590 [2023-11-29 04:25:50,825 INFO L226 Difference]: Without dead ends: 1588 [2023-11-29 04:25:50,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:50,827 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 194 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:50,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 366 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:25:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2023-11-29 04:25:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1445. [2023-11-29 04:25:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1289 states have (on average 1.2242048099301783) internal successors, (1578), 1303 states have internal predecessors, (1578), 139 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 04:25:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1856 transitions. [2023-11-29 04:25:51,091 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1856 transitions. Word has length 146 [2023-11-29 04:25:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:51,091 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1856 transitions. [2023-11-29 04:25:51,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 04:25:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1856 transitions. [2023-11-29 04:25:51,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:25:51,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:51,092 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:51,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 04:25:51,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:51,292 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:51,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash 103330529, now seen corresponding path program 1 times [2023-11-29 04:25:51,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:51,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306701348] [2023-11-29 04:25:51,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:51,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:51,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:51,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223054520] [2023-11-29 04:25:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:51,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:51,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:51,301 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:51,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 04:25:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:51,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:25:51,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:51,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:51,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306701348] [2023-11-29 04:25:51,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223054520] [2023-11-29 04:25:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223054520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:51,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:51,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:25:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883445226] [2023-11-29 04:25:51,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:51,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:25:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:25:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:51,766 INFO L87 Difference]: Start difference. First operand 1445 states and 1856 transitions. Second operand has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 04:25:52,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:52,867 INFO L93 Difference]: Finished difference Result 2066 states and 2608 transitions. [2023-11-29 04:25:52,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:25:52,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 149 [2023-11-29 04:25:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:52,871 INFO L225 Difference]: With dead ends: 2066 [2023-11-29 04:25:52,871 INFO L226 Difference]: Without dead ends: 2064 [2023-11-29 04:25:52,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:25:52,871 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 279 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:52,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 362 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:25:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2023-11-29 04:25:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1898. [2023-11-29 04:25:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1703 states have (on average 1.2290076335877862) internal successors, (2093), 1717 states have internal predecessors, (2093), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2023-11-29 04:25:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2449 transitions. [2023-11-29 04:25:53,168 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2449 transitions. Word has length 149 [2023-11-29 04:25:53,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:53,168 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2449 transitions. [2023-11-29 04:25:53,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 04:25:53,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2449 transitions. [2023-11-29 04:25:53,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:25:53,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:53,170 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:53,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 04:25:53,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:53,370 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:53,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:53,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1684355042, now seen corresponding path program 3 times [2023-11-29 04:25:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813691202] [2023-11-29 04:25:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:53,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:53,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:53,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155953372] [2023-11-29 04:25:53,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:25:53,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:53,378 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:53,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 04:25:53,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:25:53,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:53,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:25:53,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-29 04:25:53,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:54,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:54,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813691202] [2023-11-29 04:25:54,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:54,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155953372] [2023-11-29 04:25:54,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155953372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:54,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:54,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:25:54,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018240659] [2023-11-29 04:25:54,095 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:54,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:25:54,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:54,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:25:54,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:25:54,096 INFO L87 Difference]: Start difference. First operand 1898 states and 2449 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:54,529 INFO L93 Difference]: Finished difference Result 2049 states and 2637 transitions. [2023-11-29 04:25:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:25:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 152 [2023-11-29 04:25:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:54,532 INFO L225 Difference]: With dead ends: 2049 [2023-11-29 04:25:54,532 INFO L226 Difference]: Without dead ends: 2048 [2023-11-29 04:25:54,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:25:54,533 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 73 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:54,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 205 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:25:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2023-11-29 04:25:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2022. [2023-11-29 04:25:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2258953168044078) internal successors, (2225), 1829 states have internal predecessors, (2225), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:25:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2605 transitions. [2023-11-29 04:25:54,944 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2605 transitions. Word has length 152 [2023-11-29 04:25:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:54,944 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2605 transitions. [2023-11-29 04:25:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 04:25:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2605 transitions. [2023-11-29 04:25:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:25:54,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:54,946 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:54,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 04:25:55,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 04:25:55,146 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:55,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1764779618, now seen corresponding path program 4 times [2023-11-29 04:25:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755015358] [2023-11-29 04:25:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:55,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842723056] [2023-11-29 04:25:55,154 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:25:55,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:55,155 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:55,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 04:25:55,214 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:25:55,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:55,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:25:55,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 24 proven. 63 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:56,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:56,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:56,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755015358] [2023-11-29 04:25:56,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:56,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842723056] [2023-11-29 04:25:56,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842723056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:56,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:56,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:25:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156887096] [2023-11-29 04:25:56,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:56,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:25:56,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:56,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:25:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:56,391 INFO L87 Difference]: Start difference. First operand 2022 states and 2605 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:25:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:58,152 INFO L93 Difference]: Finished difference Result 2049 states and 2617 transitions. [2023-11-29 04:25:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:25:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 152 [2023-11-29 04:25:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:58,156 INFO L225 Difference]: With dead ends: 2049 [2023-11-29 04:25:58,156 INFO L226 Difference]: Without dead ends: 2047 [2023-11-29 04:25:58,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:25:58,156 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 99 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:58,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 397 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:25:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-11-29 04:25:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2022. [2023-11-29 04:25:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2236914600550963) internal successors, (2221), 1829 states have internal predecessors, (2221), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:25:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2601 transitions. [2023-11-29 04:25:58,486 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2601 transitions. Word has length 152 [2023-11-29 04:25:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:58,486 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2601 transitions. [2023-11-29 04:25:58,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:25:58,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2601 transitions. [2023-11-29 04:25:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:25:58,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:58,487 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:58,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 04:25:58,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 04:25:58,688 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:25:58,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1562807070, now seen corresponding path program 5 times [2023-11-29 04:25:58,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:58,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397332611] [2023-11-29 04:25:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:58,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:58,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:58,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500853756] [2023-11-29 04:25:58,701 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:25:58,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:58,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:58,702 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:58,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 04:25:58,963 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 04:25:58,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:25:58,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:25:58,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:25:59,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:59,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:59,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397332611] [2023-11-29 04:25:59,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:59,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500853756] [2023-11-29 04:25:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500853756] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:59,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:59,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:25:59,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470027728] [2023-11-29 04:25:59,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:59,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:25:59,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:25:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:25:59,474 INFO L87 Difference]: Start difference. First operand 2022 states and 2601 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:00,230 INFO L93 Difference]: Finished difference Result 2053 states and 2626 transitions. [2023-11-29 04:26:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:00,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 04:26:00,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:00,234 INFO L225 Difference]: With dead ends: 2053 [2023-11-29 04:26:00,234 INFO L226 Difference]: Without dead ends: 2052 [2023-11-29 04:26:00,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:26:00,235 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 154 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:00,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 151 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2023-11-29 04:26:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 2022. [2023-11-29 04:26:00,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2231404958677685) internal successors, (2220), 1829 states have internal predecessors, (2220), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2600 transitions. [2023-11-29 04:26:00,545 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2600 transitions. Word has length 152 [2023-11-29 04:26:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:00,546 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2600 transitions. [2023-11-29 04:26:00,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2600 transitions. [2023-11-29 04:26:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:26:00,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:00,547 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:00,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 04:26:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 04:26:00,748 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:00,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:00,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2139095664, now seen corresponding path program 6 times [2023-11-29 04:26:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:00,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166556685] [2023-11-29 04:26:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:00,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:00,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755032035] [2023-11-29 04:26:00,758 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:26:00,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:00,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:00,759 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:00,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 04:26:01,625 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 04:26:01,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:01,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:26:01,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:26:02,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:02,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:02,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166556685] [2023-11-29 04:26:02,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:02,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755032035] [2023-11-29 04:26:02,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755032035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:02,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:02,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:26:02,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329582233] [2023-11-29 04:26:02,223 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:02,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:26:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:02,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:26:02,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:26:02,224 INFO L87 Difference]: Start difference. First operand 2022 states and 2600 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:02,904 INFO L93 Difference]: Finished difference Result 2038 states and 2612 transitions. [2023-11-29 04:26:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:26:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 04:26:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:02,908 INFO L225 Difference]: With dead ends: 2038 [2023-11-29 04:26:02,908 INFO L226 Difference]: Without dead ends: 2037 [2023-11-29 04:26:02,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:26:02,909 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 74 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:02,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 303 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:26:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2023-11-29 04:26:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 2022. [2023-11-29 04:26:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2225895316804407) internal successors, (2219), 1829 states have internal predecessors, (2219), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:03,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2599 transitions. [2023-11-29 04:26:03,243 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2599 transitions. Word has length 152 [2023-11-29 04:26:03,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:03,243 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2599 transitions. [2023-11-29 04:26:03,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2599 transitions. [2023-11-29 04:26:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 04:26:03,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:03,244 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:03,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:03,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 04:26:03,445 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:03,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2075447056, now seen corresponding path program 7 times [2023-11-29 04:26:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:03,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448059491] [2023-11-29 04:26:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:03,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:03,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644067939] [2023-11-29 04:26:03,453 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:26:03,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:03,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:03,454 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:03,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 04:26:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:03,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:26:03,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:26:04,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:04,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:04,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448059491] [2023-11-29 04:26:04,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:04,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644067939] [2023-11-29 04:26:04,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644067939] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:04,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:04,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:26:04,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010423995] [2023-11-29 04:26:04,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:04,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:26:04,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:04,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:26:04,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:04,086 INFO L87 Difference]: Start difference. First operand 2022 states and 2599 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:04,859 INFO L93 Difference]: Finished difference Result 2085 states and 2668 transitions. [2023-11-29 04:26:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 04:26:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:04,862 INFO L225 Difference]: With dead ends: 2085 [2023-11-29 04:26:04,862 INFO L226 Difference]: Without dead ends: 2084 [2023-11-29 04:26:04,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:26:04,863 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 154 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:04,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 206 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2023-11-29 04:26:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2027. [2023-11-29 04:26:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.221978021978022) internal successors, (2224), 1834 states have internal predecessors, (2224), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2604 transitions. [2023-11-29 04:26:05,170 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2604 transitions. Word has length 152 [2023-11-29 04:26:05,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:05,170 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2604 transitions. [2023-11-29 04:26:05,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2604 transitions. [2023-11-29 04:26:05,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:26:05,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:05,171 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:05,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:05,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:05,372 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:05,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:05,372 INFO L85 PathProgramCache]: Analyzing trace with hash 558870720, now seen corresponding path program 3 times [2023-11-29 04:26:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:05,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459965974] [2023-11-29 04:26:05,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:05,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:05,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:05,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100172477] [2023-11-29 04:26:05,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:05,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:05,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:05,380 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:05,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 04:26:08,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:26:08,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:08,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:26:08,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:26:08,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459965974] [2023-11-29 04:26:09,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100172477] [2023-11-29 04:26:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100172477] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:09,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:26:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723216907] [2023-11-29 04:26:09,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:09,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:26:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:26:09,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:26:09,111 INFO L87 Difference]: Start difference. First operand 2027 states and 2604 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:10,074 INFO L93 Difference]: Finished difference Result 2043 states and 2616 transitions. [2023-11-29 04:26:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:10,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 04:26:10,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:10,076 INFO L225 Difference]: With dead ends: 2043 [2023-11-29 04:26:10,077 INFO L226 Difference]: Without dead ends: 2042 [2023-11-29 04:26:10,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:26:10,077 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 81 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:10,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 455 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:26:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2023-11-29 04:26:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2027. [2023-11-29 04:26:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2214285714285715) internal successors, (2223), 1834 states have internal predecessors, (2223), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2603 transitions. [2023-11-29 04:26:10,405 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2603 transitions. Word has length 154 [2023-11-29 04:26:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:10,405 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2603 transitions. [2023-11-29 04:26:10,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2603 transitions. [2023-11-29 04:26:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:26:10,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:10,406 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:10,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 04:26:10,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:10,607 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:10,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1380957632, now seen corresponding path program 4 times [2023-11-29 04:26:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122401143] [2023-11-29 04:26:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:10,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529615780] [2023-11-29 04:26:10,614 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:26:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:10,615 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:10,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 04:26:10,676 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:26:10,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:10,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:26:10,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:26:11,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122401143] [2023-11-29 04:26:11,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529615780] [2023-11-29 04:26:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529615780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:11,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:26:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253761009] [2023-11-29 04:26:11,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:11,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:26:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:26:11,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:11,219 INFO L87 Difference]: Start difference. First operand 2027 states and 2603 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:11,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:11,966 INFO L93 Difference]: Finished difference Result 2057 states and 2628 transitions. [2023-11-29 04:26:11,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:11,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 04:26:11,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:11,969 INFO L225 Difference]: With dead ends: 2057 [2023-11-29 04:26:11,969 INFO L226 Difference]: Without dead ends: 2056 [2023-11-29 04:26:11,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:11,969 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 85 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:11,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 247 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2023-11-29 04:26:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2027. [2023-11-29 04:26:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.220879120879121) internal successors, (2222), 1834 states have internal predecessors, (2222), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2602 transitions. [2023-11-29 04:26:12,278 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2602 transitions. Word has length 154 [2023-11-29 04:26:12,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:12,278 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2602 transitions. [2023-11-29 04:26:12,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2602 transitions. [2023-11-29 04:26:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:26:12,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:12,280 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:12,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 04:26:12,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:12,480 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:12,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1618403378, now seen corresponding path program 5 times [2023-11-29 04:26:12,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:12,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567236352] [2023-11-29 04:26:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:12,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:12,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:12,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057123290] [2023-11-29 04:26:12,487 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:26:12,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:12,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:12,488 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:12,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 04:26:12,558 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 04:26:12,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:12,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:26:12,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 04:26:13,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:13,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:13,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567236352] [2023-11-29 04:26:13,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:13,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057123290] [2023-11-29 04:26:13,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057123290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:13,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:26:13,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808184921] [2023-11-29 04:26:13,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:13,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:26:13,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:26:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:13,114 INFO L87 Difference]: Start difference. First operand 2027 states and 2602 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:13,892 INFO L93 Difference]: Finished difference Result 2042 states and 2614 transitions. [2023-11-29 04:26:13,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:26:13,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 04:26:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:13,895 INFO L225 Difference]: With dead ends: 2042 [2023-11-29 04:26:13,895 INFO L226 Difference]: Without dead ends: 2041 [2023-11-29 04:26:13,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:26:13,896 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 85 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:13,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 276 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2023-11-29 04:26:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2027. [2023-11-29 04:26:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2203296703296704) internal successors, (2221), 1834 states have internal predecessors, (2221), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2601 transitions. [2023-11-29 04:26:14,209 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2601 transitions. Word has length 154 [2023-11-29 04:26:14,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:14,210 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2601 transitions. [2023-11-29 04:26:14,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:14,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2601 transitions. [2023-11-29 04:26:14,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:26:14,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:14,211 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:14,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 04:26:14,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:14,411 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:14,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1639797170, now seen corresponding path program 6 times [2023-11-29 04:26:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:14,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699952653] [2023-11-29 04:26:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:14,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:14,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549443039] [2023-11-29 04:26:14,420 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:26:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:14,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:14,421 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:14,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 04:26:14,548 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 04:26:14,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:14,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:26:14,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-29 04:26:14,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699952653] [2023-11-29 04:26:15,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549443039] [2023-11-29 04:26:15,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549443039] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:15,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:15,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:26:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414179396] [2023-11-29 04:26:15,072 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:15,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:26:15,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:15,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:26:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:26:15,073 INFO L87 Difference]: Start difference. First operand 2027 states and 2601 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:15,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:15,657 INFO L93 Difference]: Finished difference Result 2059 states and 2623 transitions. [2023-11-29 04:26:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:26:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 154 [2023-11-29 04:26:15,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:15,659 INFO L225 Difference]: With dead ends: 2059 [2023-11-29 04:26:15,659 INFO L226 Difference]: Without dead ends: 2058 [2023-11-29 04:26:15,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:26:15,660 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 76 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:15,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 197 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:26:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2023-11-29 04:26:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2027. [2023-11-29 04:26:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2192307692307693) internal successors, (2219), 1834 states have internal predecessors, (2219), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 04:26:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2599 transitions. [2023-11-29 04:26:15,968 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2599 transitions. Word has length 154 [2023-11-29 04:26:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:15,968 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2599 transitions. [2023-11-29 04:26:15,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:26:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2599 transitions. [2023-11-29 04:26:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 04:26:15,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:15,969 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:15,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 04:26:16,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:16,170 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:16,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:16,170 INFO L85 PathProgramCache]: Analyzing trace with hash 804533707, now seen corresponding path program 1 times [2023-11-29 04:26:16,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:16,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212701534] [2023-11-29 04:26:16,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:16,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:16,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:16,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735079306] [2023-11-29 04:26:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:16,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:16,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:16,180 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:16,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 04:26:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:16,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:26:16,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-29 04:26:16,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:26:16,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:16,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212701534] [2023-11-29 04:26:16,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:16,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735079306] [2023-11-29 04:26:16,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735079306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:26:16,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:26:16,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:26:16,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974314484] [2023-11-29 04:26:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:26:16,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:26:16,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:16,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:26:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:26:16,356 INFO L87 Difference]: Start difference. First operand 2027 states and 2599 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:26:16,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:16,920 INFO L93 Difference]: Finished difference Result 2033 states and 2599 transitions. [2023-11-29 04:26:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:26:16,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 157 [2023-11-29 04:26:16,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:16,922 INFO L225 Difference]: With dead ends: 2033 [2023-11-29 04:26:16,923 INFO L226 Difference]: Without dead ends: 2021 [2023-11-29 04:26:16,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:26:16,923 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 53 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:16,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 266 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:26:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2023-11-29 04:26:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 2007. [2023-11-29 04:26:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2151968940654465) internal successors, (2191), 1816 states have internal predecessors, (2191), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2567 transitions. [2023-11-29 04:26:17,245 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2567 transitions. Word has length 157 [2023-11-29 04:26:17,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:17,245 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2567 transitions. [2023-11-29 04:26:17,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:26:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2567 transitions. [2023-11-29 04:26:17,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 04:26:17,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:17,247 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:17,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:17,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:17,447 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:17,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:17,447 INFO L85 PathProgramCache]: Analyzing trace with hash 177535078, now seen corresponding path program 3 times [2023-11-29 04:26:17,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:17,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558830488] [2023-11-29 04:26:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:17,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:17,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450776159] [2023-11-29 04:26:17,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:17,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:17,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:17,457 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:17,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 04:26:17,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:26:17,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:17,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:26:17,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 04:26:18,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:18,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:18,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558830488] [2023-11-29 04:26:18,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:18,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450776159] [2023-11-29 04:26:18,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450776159] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:18,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:18,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:26:18,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014728129] [2023-11-29 04:26:18,518 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:18,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:26:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:26:18,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:26:18,519 INFO L87 Difference]: Start difference. First operand 2007 states and 2567 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:19,799 INFO L93 Difference]: Finished difference Result 2149 states and 2739 transitions. [2023-11-29 04:26:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 04:26:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:19,801 INFO L225 Difference]: With dead ends: 2149 [2023-11-29 04:26:19,801 INFO L226 Difference]: Without dead ends: 2148 [2023-11-29 04:26:19,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:26:19,802 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:19,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 462 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:26:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2023-11-29 04:26:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2007. [2023-11-29 04:26:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2146422628951747) internal successors, (2190), 1816 states have internal predecessors, (2190), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2566 transitions. [2023-11-29 04:26:20,109 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2566 transitions. Word has length 162 [2023-11-29 04:26:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:20,110 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2566 transitions. [2023-11-29 04:26:20,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2566 transitions. [2023-11-29 04:26:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 04:26:20,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:20,111 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:20,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:20,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 04:26:20,311 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:20,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1788638680, now seen corresponding path program 2 times [2023-11-29 04:26:20,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:20,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459696065] [2023-11-29 04:26:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:20,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:20,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412210249] [2023-11-29 04:26:20,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:20,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:20,320 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:20,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 04:26:20,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:20,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:20,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:26:20,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:26:21,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:21,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:21,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459696065] [2023-11-29 04:26:21,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:21,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412210249] [2023-11-29 04:26:21,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412210249] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:21,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:21,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:26:21,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455605223] [2023-11-29 04:26:21,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:21,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:21,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:21,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:21,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:26:21,162 INFO L87 Difference]: Start difference. First operand 2007 states and 2566 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:22,206 INFO L93 Difference]: Finished difference Result 2054 states and 2615 transitions. [2023-11-29 04:26:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:22,206 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 04:26:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:22,208 INFO L225 Difference]: With dead ends: 2054 [2023-11-29 04:26:22,208 INFO L226 Difference]: Without dead ends: 2053 [2023-11-29 04:26:22,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:26:22,209 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 170 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:22,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 389 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:26:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2023-11-29 04:26:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2007. [2023-11-29 04:26:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.214087631724903) internal successors, (2189), 1816 states have internal predecessors, (2189), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2565 transitions. [2023-11-29 04:26:22,576 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2565 transitions. Word has length 162 [2023-11-29 04:26:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:22,577 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2565 transitions. [2023-11-29 04:26:22,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:22,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2565 transitions. [2023-11-29 04:26:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 04:26:22,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:22,578 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:22,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 04:26:22,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:22,778 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:22,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2081654616, now seen corresponding path program 3 times [2023-11-29 04:26:22,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:22,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424409781] [2023-11-29 04:26:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:22,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:22,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:22,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481967783] [2023-11-29 04:26:22,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:22,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:22,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:22,787 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:22,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 04:26:22,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:26:22,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:22,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:26:22,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 33 proven. 84 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 04:26:23,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:26,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424409781] [2023-11-29 04:26:26,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:26,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481967783] [2023-11-29 04:26:26,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481967783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:26,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:26,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:26:26,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383409181] [2023-11-29 04:26:26,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:26,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:26:26,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:26,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:26:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=90, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:26:26,700 INFO L87 Difference]: Start difference. First operand 2007 states and 2565 transitions. Second operand has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:27,576 INFO L93 Difference]: Finished difference Result 2334 states and 2972 transitions. [2023-11-29 04:26:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:26:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 04:26:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:27,579 INFO L225 Difference]: With dead ends: 2334 [2023-11-29 04:26:27,579 INFO L226 Difference]: Without dead ends: 2333 [2023-11-29 04:26:27,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=55, Invalid=126, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:26:27,580 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 265 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:27,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 291 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:27,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2023-11-29 04:26:27,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2007. [2023-11-29 04:26:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.211869107043816) internal successors, (2185), 1816 states have internal predecessors, (2185), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2561 transitions. [2023-11-29 04:26:27,889 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2561 transitions. Word has length 162 [2023-11-29 04:26:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:27,889 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2561 transitions. [2023-11-29 04:26:27,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2561 transitions. [2023-11-29 04:26:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 04:26:27,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:27,890 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:27,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:28,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:28,091 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:28,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1970705322, now seen corresponding path program 2 times [2023-11-29 04:26:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:28,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396208512] [2023-11-29 04:26:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:28,100 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:28,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223123042] [2023-11-29 04:26:28,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:28,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:28,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:28,101 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:28,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 04:26:28,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:28,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:28,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:26:28,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:26:28,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:29,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:29,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396208512] [2023-11-29 04:26:29,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:29,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223123042] [2023-11-29 04:26:29,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223123042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:29,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:29,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:26:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523967637] [2023-11-29 04:26:29,055 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:29,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:26:29,056 INFO L87 Difference]: Start difference. First operand 2007 states and 2561 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:29,834 INFO L93 Difference]: Finished difference Result 2050 states and 2607 transitions. [2023-11-29 04:26:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:26:29,834 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 165 [2023-11-29 04:26:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:29,836 INFO L225 Difference]: With dead ends: 2050 [2023-11-29 04:26:29,836 INFO L226 Difference]: Without dead ends: 2049 [2023-11-29 04:26:29,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:26:29,836 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 111 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:29,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 441 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:26:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2023-11-29 04:26:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2007. [2023-11-29 04:26:30,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2113144758735441) internal successors, (2184), 1816 states have internal predecessors, (2184), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2560 transitions. [2023-11-29 04:26:30,144 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2560 transitions. Word has length 165 [2023-11-29 04:26:30,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:30,144 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2560 transitions. [2023-11-29 04:26:30,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:30,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2560 transitions. [2023-11-29 04:26:30,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 04:26:30,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:30,145 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:30,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 04:26:30,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:30,346 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:30,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -460058070, now seen corresponding path program 3 times [2023-11-29 04:26:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:30,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222873826] [2023-11-29 04:26:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:30,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545239017] [2023-11-29 04:26:30,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:30,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:30,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:30,356 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:30,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 04:26:30,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:26:30,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:30,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:26:30,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:26:31,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:31,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:31,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222873826] [2023-11-29 04:26:31,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:31,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545239017] [2023-11-29 04:26:31,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545239017] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:31,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:31,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:26:31,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995984173] [2023-11-29 04:26:31,558 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:31,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:26:31,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:26:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:26:31,559 INFO L87 Difference]: Start difference. First operand 2007 states and 2560 transitions. Second operand has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:32,534 INFO L93 Difference]: Finished difference Result 2075 states and 2638 transitions. [2023-11-29 04:26:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:26:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 165 [2023-11-29 04:26:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:32,536 INFO L225 Difference]: With dead ends: 2075 [2023-11-29 04:26:32,536 INFO L226 Difference]: Without dead ends: 2074 [2023-11-29 04:26:32,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:26:32,537 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:32,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 510 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:26:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2023-11-29 04:26:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2007. [2023-11-29 04:26:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2107598447032724) internal successors, (2183), 1816 states have internal predecessors, (2183), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 04:26:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2559 transitions. [2023-11-29 04:26:32,885 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2559 transitions. Word has length 165 [2023-11-29 04:26:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:32,885 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2559 transitions. [2023-11-29 04:26:32,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2559 transitions. [2023-11-29 04:26:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 04:26:32,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:32,886 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:32,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 04:26:33,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 04:26:33,086 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:33,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash -332183688, now seen corresponding path program 4 times [2023-11-29 04:26:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:33,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441427970] [2023-11-29 04:26:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:33,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:33,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:33,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915991322] [2023-11-29 04:26:33,093 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:26:33,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:33,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:33,094 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:33,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 04:26:33,154 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:26:33,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:33,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:26:33,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 3 proven. 120 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 04:26:33,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:34,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441427970] [2023-11-29 04:26:34,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915991322] [2023-11-29 04:26:34,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915991322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:34,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:34,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:26:34,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066839599] [2023-11-29 04:26:34,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:34,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:26:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:26:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:26:34,095 INFO L87 Difference]: Start difference. First operand 2007 states and 2559 transitions. Second operand has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:35,942 INFO L93 Difference]: Finished difference Result 2193 states and 2795 transitions. [2023-11-29 04:26:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:26:35,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 165 [2023-11-29 04:26:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:35,944 INFO L225 Difference]: With dead ends: 2193 [2023-11-29 04:26:35,945 INFO L226 Difference]: Without dead ends: 2192 [2023-11-29 04:26:35,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:26:35,945 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 146 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 606 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:26:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2023-11-29 04:26:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2016. [2023-11-29 04:26:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1811 states have (on average 1.209828823854224) internal successors, (2191), 1824 states have internal predecessors, (2191), 189 states have call successors, (189), 2 states have call predecessors, (189), 2 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2023-11-29 04:26:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2569 transitions. [2023-11-29 04:26:36,255 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2569 transitions. Word has length 165 [2023-11-29 04:26:36,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:36,256 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2569 transitions. [2023-11-29 04:26:36,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 04:26:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2569 transitions. [2023-11-29 04:26:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 04:26:36,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:36,257 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:36,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:36,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:36,457 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:36,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1376898212, now seen corresponding path program 2 times [2023-11-29 04:26:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:36,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506881996] [2023-11-29 04:26:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:36,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843077606] [2023-11-29 04:26:36,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:36,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:36,465 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:36,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 04:26:36,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:36,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:36,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:26:36,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 04:26:37,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:37,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506881996] [2023-11-29 04:26:37,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843077606] [2023-11-29 04:26:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843077606] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:37,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:37,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:26:37,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076679523] [2023-11-29 04:26:37,493 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:37,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:26:37,494 INFO L87 Difference]: Start difference. First operand 2016 states and 2569 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:26:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:39,736 INFO L93 Difference]: Finished difference Result 2103 states and 2630 transitions. [2023-11-29 04:26:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:26:39,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 166 [2023-11-29 04:26:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:39,739 INFO L225 Difference]: With dead ends: 2103 [2023-11-29 04:26:39,739 INFO L226 Difference]: Without dead ends: 2085 [2023-11-29 04:26:39,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:26:39,739 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 289 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:39,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 432 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:26:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-11-29 04:26:40,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1891. [2023-11-29 04:26:40,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1698 states have (on average 1.1943462897526502) internal successors, (2028), 1711 states have internal predecessors, (2028), 177 states have call successors, (177), 2 states have call predecessors, (177), 2 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-29 04:26:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2382 transitions. [2023-11-29 04:26:40,044 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2382 transitions. Word has length 166 [2023-11-29 04:26:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:40,045 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2382 transitions. [2023-11-29 04:26:40,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:26:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2382 transitions. [2023-11-29 04:26:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 04:26:40,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:40,046 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:40,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 04:26:40,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:40,246 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:40,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1707759666, now seen corresponding path program 3 times [2023-11-29 04:26:40,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:40,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950266660] [2023-11-29 04:26:40,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:40,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:40,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:40,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849735664] [2023-11-29 04:26:40,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:40,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:40,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:40,254 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:40,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 04:26:40,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:26:40,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:40,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:26:40,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-29 04:26:40,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:45,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:45,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950266660] [2023-11-29 04:26:45,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:45,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849735664] [2023-11-29 04:26:45,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849735664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:45,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:45,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:26:45,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517715910] [2023-11-29 04:26:45,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:45,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:26:45,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:45,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:26:45,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=147, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:26:45,162 INFO L87 Difference]: Start difference. First operand 1891 states and 2382 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:26:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:46,042 INFO L93 Difference]: Finished difference Result 1994 states and 2501 transitions. [2023-11-29 04:26:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:26:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 166 [2023-11-29 04:26:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:46,045 INFO L225 Difference]: With dead ends: 1994 [2023-11-29 04:26:46,045 INFO L226 Difference]: Without dead ends: 1984 [2023-11-29 04:26:46,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=46, Invalid=193, Unknown=1, NotChecked=0, Total=240 [2023-11-29 04:26:46,045 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 69 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:46,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 231 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:26:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2023-11-29 04:26:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1891. [2023-11-29 04:26:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1698 states have (on average 1.1896348645465253) internal successors, (2020), 1711 states have internal predecessors, (2020), 177 states have call successors, (177), 2 states have call predecessors, (177), 2 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-29 04:26:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2374 transitions. [2023-11-29 04:26:46,350 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2374 transitions. Word has length 166 [2023-11-29 04:26:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:46,350 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2374 transitions. [2023-11-29 04:26:46,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:26:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2374 transitions. [2023-11-29 04:26:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:26:46,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:46,352 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:46,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 04:26:46,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2023-11-29 04:26:46,552 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:46,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash -447501461, now seen corresponding path program 2 times [2023-11-29 04:26:46,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:46,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300794311] [2023-11-29 04:26:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:46,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:46,560 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577892716] [2023-11-29 04:26:46,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:46,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:46,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:46,562 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:46,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 04:26:46,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:46,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:46,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:26:46,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:47,553 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:26:47,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:47,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:47,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300794311] [2023-11-29 04:26:47,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:47,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577892716] [2023-11-29 04:26:47,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577892716] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:47,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:47,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:26:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191872904] [2023-11-29 04:26:47,664 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:47,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:26:47,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:47,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:26:47,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:26:47,664 INFO L87 Difference]: Start difference. First operand 1891 states and 2374 transitions. Second operand has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:26:48,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:48,923 INFO L93 Difference]: Finished difference Result 2060 states and 2578 transitions. [2023-11-29 04:26:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:26:48,924 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2023-11-29 04:26:48,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:48,926 INFO L225 Difference]: With dead ends: 2060 [2023-11-29 04:26:48,926 INFO L226 Difference]: Without dead ends: 2059 [2023-11-29 04:26:48,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:26:48,926 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 105 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:48,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 609 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:26:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2023-11-29 04:26:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1902. [2023-11-29 04:26:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1886350322202694) internal successors, (2029), 1720 states have internal predecessors, (2029), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:26:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2387 transitions. [2023-11-29 04:26:49,231 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2387 transitions. Word has length 173 [2023-11-29 04:26:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2387 transitions. [2023-11-29 04:26:49,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:26:49,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2387 transitions. [2023-11-29 04:26:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:26:49,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:49,233 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:49,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:49,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2023-11-29 04:26:49,433 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:26:49,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash 902279865, now seen corresponding path program 3 times [2023-11-29 04:26:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:49,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630401499] [2023-11-29 04:26:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:49,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:49,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998788612] [2023-11-29 04:26:49,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:26:49,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:49,442 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:49,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 04:26:49,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:26:49,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:49,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 04:26:49,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 30 proven. 114 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-29 04:26:52,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:25,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630401499] [2023-11-29 04:27:25,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998788612] [2023-11-29 04:27:25,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998788612] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:25,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:25,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:27:25,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196594326] [2023-11-29 04:27:25,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:25,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:27:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:27:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=336, Unknown=7, NotChecked=0, Total=420 [2023-11-29 04:27:25,124 INFO L87 Difference]: Start difference. First operand 1902 states and 2387 transitions. Second operand has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 04:27:37,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:40,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:42,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:46,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:51,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:51,709 INFO L93 Difference]: Finished difference Result 2079 states and 2590 transitions. [2023-11-29 04:27:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:27:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) Word has length 173 [2023-11-29 04:27:51,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:51,711 INFO L225 Difference]: With dead ends: 2079 [2023-11-29 04:27:51,711 INFO L226 Difference]: Without dead ends: 2078 [2023-11-29 04:27:51,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 39.6s TimeCoverageRelationStatistics Valid=97, Invalid=448, Unknown=7, NotChecked=0, Total=552 [2023-11-29 04:27:51,712 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 205 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:51,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 630 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1225 Invalid, 1 Unknown, 0 Unchecked, 19.5s Time] [2023-11-29 04:27:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2023-11-29 04:27:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1902. [2023-11-29 04:27:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1874633860574106) internal successors, (2027), 1720 states have internal predecessors, (2027), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:27:52,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2385 transitions. [2023-11-29 04:27:52,024 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2385 transitions. Word has length 173 [2023-11-29 04:27:52,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:52,024 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2385 transitions. [2023-11-29 04:27:52,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 04:27:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2385 transitions. [2023-11-29 04:27:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:27:52,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:52,026 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:52,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:52,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2023-11-29 04:27:52,226 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:27:52,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash 146714937, now seen corresponding path program 4 times [2023-11-29 04:27:52,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:52,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772587842] [2023-11-29 04:27:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:52,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:52,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:52,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852856318] [2023-11-29 04:27:52,234 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:27:52,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:52,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:52,235 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:52,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 04:27:52,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:27:52,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:52,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:27:52,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 3 proven. 132 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:27:53,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:53,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:53,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772587842] [2023-11-29 04:27:53,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:53,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852856318] [2023-11-29 04:27:53,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852856318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:53,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:53,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:27:53,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059752655] [2023-11-29 04:27:53,385 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:53,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:27:53,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:53,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:27:53,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:27:53,386 INFO L87 Difference]: Start difference. First operand 1902 states and 2385 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:27:54,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:54,820 INFO L93 Difference]: Finished difference Result 1991 states and 2486 transitions. [2023-11-29 04:27:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:27:54,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2023-11-29 04:27:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:54,822 INFO L225 Difference]: With dead ends: 1991 [2023-11-29 04:27:54,822 INFO L226 Difference]: Without dead ends: 1990 [2023-11-29 04:27:54,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:27:54,823 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:54,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 533 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:27:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2023-11-29 04:27:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1902. [2023-11-29 04:27:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1868775629759813) internal successors, (2026), 1720 states have internal predecessors, (2026), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:27:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2384 transitions. [2023-11-29 04:27:55,139 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2384 transitions. Word has length 173 [2023-11-29 04:27:55,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:55,139 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2384 transitions. [2023-11-29 04:27:55,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:27:55,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2384 transitions. [2023-11-29 04:27:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:27:55,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:55,141 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:55,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:55,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:55,341 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:27:55,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1496496263, now seen corresponding path program 3 times [2023-11-29 04:27:55,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:55,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207076214] [2023-11-29 04:27:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:55,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:55,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846619864] [2023-11-29 04:27:55,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:55,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:55,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:55,351 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:55,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 04:27:55,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:27:55,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:55,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 04:27:55,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 43 proven. 71 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 04:28:01,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:04,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207076214] [2023-11-29 04:28:04,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:04,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846619864] [2023-11-29 04:28:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846619864] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:04,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:04,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:28:04,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200848034] [2023-11-29 04:28:04,255 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:04,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:28:04,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:28:04,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:28:04,257 INFO L87 Difference]: Start difference. First operand 1902 states and 2384 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 04:28:10,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:15,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:20,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:26,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:30,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:37,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:39,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:43,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:44,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:50,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:54,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:01,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:03,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:08,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:12,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:17,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:18,058 INFO L93 Difference]: Finished difference Result 1956 states and 2442 transitions. [2023-11-29 04:29:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:29:18,058 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 173 [2023-11-29 04:29:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:18,061 INFO L225 Difference]: With dead ends: 1956 [2023-11-29 04:29:18,061 INFO L226 Difference]: Without dead ends: 1954 [2023-11-29 04:29:18,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 04:29:18,062 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 290 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 19 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:18,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 255 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 467 Invalid, 9 Unknown, 0 Unchecked, 62.5s Time] [2023-11-29 04:29:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2023-11-29 04:29:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1902. [2023-11-29 04:29:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.185120093731693) internal successors, (2023), 1720 states have internal predecessors, (2023), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:29:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2381 transitions. [2023-11-29 04:29:18,397 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2381 transitions. Word has length 173 [2023-11-29 04:29:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:18,398 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2381 transitions. [2023-11-29 04:29:18,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 04:29:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2381 transitions. [2023-11-29 04:29:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 04:29:18,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:18,399 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:18,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 04:29:18,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:18,599 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:18,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:18,600 INFO L85 PathProgramCache]: Analyzing trace with hash 62538660, now seen corresponding path program 2 times [2023-11-29 04:29:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:18,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599880219] [2023-11-29 04:29:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:18,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:18,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:18,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1809400186] [2023-11-29 04:29:18,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:29:18,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:18,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:18,608 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:18,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 04:29:18,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:29:18,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:18,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:29:18,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:29:19,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599880219] [2023-11-29 04:29:19,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809400186] [2023-11-29 04:29:19,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809400186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:19,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:19,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:29:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609944375] [2023-11-29 04:29:19,692 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:29:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:29:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:29:19,693 INFO L87 Difference]: Start difference. First operand 1902 states and 2381 transitions. Second operand has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:21,228 INFO L93 Difference]: Finished difference Result 2068 states and 2582 transitions. [2023-11-29 04:29:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:29:21,229 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 176 [2023-11-29 04:29:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:21,231 INFO L225 Difference]: With dead ends: 2068 [2023-11-29 04:29:21,231 INFO L226 Difference]: Without dead ends: 2067 [2023-11-29 04:29:21,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:29:21,232 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 142 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:21,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 539 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:29:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2023-11-29 04:29:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1905. [2023-11-29 04:29:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1710 states have (on average 1.184795321637427) internal successors, (2026), 1723 states have internal predecessors, (2026), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:29:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2384 transitions. [2023-11-29 04:29:21,568 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2384 transitions. Word has length 176 [2023-11-29 04:29:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:21,568 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2384 transitions. [2023-11-29 04:29:21,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:21,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2384 transitions. [2023-11-29 04:29:21,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 04:29:21,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:21,570 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:21,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2023-11-29 04:29:21,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 04:29:21,770 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:21,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:21,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1914196374, now seen corresponding path program 3 times [2023-11-29 04:29:21,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:21,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569873699] [2023-11-29 04:29:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:21,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:21,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915705366] [2023-11-29 04:29:21,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:29:21,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:21,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:21,781 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:21,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 04:29:21,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:29:21,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:21,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:29:21,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 6 proven. 141 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-29 04:29:22,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:22,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:22,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569873699] [2023-11-29 04:29:22,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:22,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915705366] [2023-11-29 04:29:22,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915705366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:22,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:22,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:29:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618872237] [2023-11-29 04:29:22,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:22,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:29:22,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:29:22,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:29:22,779 INFO L87 Difference]: Start difference. First operand 1905 states and 2384 transitions. Second operand has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:23,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:23,869 INFO L93 Difference]: Finished difference Result 1984 states and 2476 transitions. [2023-11-29 04:29:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:29:23,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 176 [2023-11-29 04:29:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:23,871 INFO L225 Difference]: With dead ends: 1984 [2023-11-29 04:29:23,871 INFO L226 Difference]: Without dead ends: 1983 [2023-11-29 04:29:23,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:29:23,872 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:23,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 440 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:29:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2023-11-29 04:29:24,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1905. [2023-11-29 04:29:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1710 states have (on average 1.1842105263157894) internal successors, (2025), 1723 states have internal predecessors, (2025), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:29:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2383 transitions. [2023-11-29 04:29:24,205 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2383 transitions. Word has length 176 [2023-11-29 04:29:24,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:24,205 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2383 transitions. [2023-11-29 04:29:24,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:24,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2383 transitions. [2023-11-29 04:29:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 04:29:24,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:24,206 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:24,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 04:29:24,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:24,407 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:24,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1491942634, now seen corresponding path program 4 times [2023-11-29 04:29:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213962474] [2023-11-29 04:29:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:24,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413960308] [2023-11-29 04:29:24,417 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:29:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:24,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:24,417 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:24,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 04:29:24,503 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:29:24,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:24,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:29:24,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 3 proven. 141 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:29:25,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:25,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:25,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213962474] [2023-11-29 04:29:25,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:25,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413960308] [2023-11-29 04:29:25,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413960308] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:25,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:25,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:29:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57075321] [2023-11-29 04:29:25,652 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:25,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:29:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:29:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:29:25,654 INFO L87 Difference]: Start difference. First operand 1905 states and 2383 transitions. Second operand has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:26,837 INFO L93 Difference]: Finished difference Result 1973 states and 2449 transitions. [2023-11-29 04:29:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:29:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 176 [2023-11-29 04:29:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:26,839 INFO L225 Difference]: With dead ends: 1973 [2023-11-29 04:29:26,839 INFO L226 Difference]: Without dead ends: 1972 [2023-11-29 04:29:26,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:29:26,840 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 134 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:26,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 684 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:29:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2023-11-29 04:29:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1905. [2023-11-29 04:29:27,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1710 states have (on average 1.1830409356725147) internal successors, (2023), 1723 states have internal predecessors, (2023), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 04:29:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2381 transitions. [2023-11-29 04:29:27,230 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2381 transitions. Word has length 176 [2023-11-29 04:29:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:27,230 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2381 transitions. [2023-11-29 04:29:27,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.461538461538462) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 04:29:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2381 transitions. [2023-11-29 04:29:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 04:29:27,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:27,232 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:27,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 04:29:27,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 04:29:27,433 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:27,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 928752253, now seen corresponding path program 1 times [2023-11-29 04:29:27,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:27,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813768963] [2023-11-29 04:29:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:27,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:27,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311848162] [2023-11-29 04:29:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:27,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:27,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:27,443 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:27,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 04:29:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:27,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:29:27,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 50 proven. 102 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:27,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:28,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:28,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813768963] [2023-11-29 04:29:28,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:28,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311848162] [2023-11-29 04:29:28,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311848162] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:29:28,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:29:28,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:29:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629356636] [2023-11-29 04:29:28,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:28,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:29:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:29:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:29:28,018 INFO L87 Difference]: Start difference. First operand 1905 states and 2381 transitions. Second operand has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 04:29:29,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:29,200 INFO L93 Difference]: Finished difference Result 2555 states and 3161 transitions. [2023-11-29 04:29:29,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:29:29,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 187 [2023-11-29 04:29:29,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:29,203 INFO L225 Difference]: With dead ends: 2555 [2023-11-29 04:29:29,203 INFO L226 Difference]: Without dead ends: 2554 [2023-11-29 04:29:29,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=713, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 04:29:29,203 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 904 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:29,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 735 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:29:29,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2023-11-29 04:29:29,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2156. [2023-11-29 04:29:29,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1936 states have (on average 1.184400826446281) internal successors, (2293), 1949 states have internal predecessors, (2293), 204 states have call successors, (204), 2 states have call predecessors, (204), 2 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2023-11-29 04:29:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2701 transitions. [2023-11-29 04:29:29,618 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2701 transitions. Word has length 187 [2023-11-29 04:29:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:29,618 INFO L495 AbstractCegarLoop]: Abstraction has 2156 states and 2701 transitions. [2023-11-29 04:29:29,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 04:29:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2701 transitions. [2023-11-29 04:29:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 04:29:29,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:29,620 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:29,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 04:29:29,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:29,820 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:29,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1941362001, now seen corresponding path program 1 times [2023-11-29 04:29:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759851529] [2023-11-29 04:29:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:29,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:29,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:29,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377475374] [2023-11-29 04:29:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:29,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:29,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:29,829 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:29,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 04:29:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:29,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:29:29,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 106 proven. 48 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:30,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:30,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:30,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759851529] [2023-11-29 04:29:30,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:30,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377475374] [2023-11-29 04:29:30,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377475374] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:29:30,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:29:30,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:29:30,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418576485] [2023-11-29 04:29:30,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:30,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:29:30,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:30,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:29:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:29:30,419 INFO L87 Difference]: Start difference. First operand 2156 states and 2701 transitions. Second operand has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 04:29:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:31,636 INFO L93 Difference]: Finished difference Result 2958 states and 3712 transitions. [2023-11-29 04:29:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:29:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 187 [2023-11-29 04:29:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:31,638 INFO L225 Difference]: With dead ends: 2958 [2023-11-29 04:29:31,639 INFO L226 Difference]: Without dead ends: 2957 [2023-11-29 04:29:31,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2023-11-29 04:29:31,639 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 655 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:31,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 774 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:29:31,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-11-29 04:29:32,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2774. [2023-11-29 04:29:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2494 states have (on average 1.1960705693664795) internal successors, (2983), 2507 states have internal predecessors, (2983), 264 states have call successors, (264), 2 states have call predecessors, (264), 2 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-11-29 04:29:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3511 transitions. [2023-11-29 04:29:32,228 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3511 transitions. Word has length 187 [2023-11-29 04:29:32,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:32,228 INFO L495 AbstractCegarLoop]: Abstraction has 2774 states and 3511 transitions. [2023-11-29 04:29:32,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 04:29:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3511 transitions. [2023-11-29 04:29:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 04:29:32,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:32,230 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:32,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 04:29:32,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:32,430 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:32,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1713321681, now seen corresponding path program 2 times [2023-11-29 04:29:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933373840] [2023-11-29 04:29:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:32,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:32,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080854522] [2023-11-29 04:29:32,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:29:32,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:32,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:32,440 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:32,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 04:29:32,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:29:32,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:32,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:29:32,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:32,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:29:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933373840] [2023-11-29 04:29:32,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080854522] [2023-11-29 04:29:32,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080854522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:29:32,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:29:32,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:29:32,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828049924] [2023-11-29 04:29:32,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:29:32,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:29:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:29:32,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:29:32,798 INFO L87 Difference]: Start difference. First operand 2774 states and 3511 transitions. Second operand has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:29:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:33,840 INFO L93 Difference]: Finished difference Result 3398 states and 4308 transitions. [2023-11-29 04:29:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:29:33,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 187 [2023-11-29 04:29:33,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:33,844 INFO L225 Difference]: With dead ends: 3398 [2023-11-29 04:29:33,844 INFO L226 Difference]: Without dead ends: 3397 [2023-11-29 04:29:33,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:29:33,845 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 188 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:33,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 363 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:29:33,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2023-11-29 04:29:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 2917. [2023-11-29 04:29:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2622 states have (on average 1.1952707856598017) internal successors, (3134), 2635 states have internal predecessors, (3134), 279 states have call successors, (279), 2 states have call predecessors, (279), 2 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2023-11-29 04:29:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3692 transitions. [2023-11-29 04:29:34,477 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3692 transitions. Word has length 187 [2023-11-29 04:29:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:34,477 INFO L495 AbstractCegarLoop]: Abstraction has 2917 states and 3692 transitions. [2023-11-29 04:29:34,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:29:34,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3692 transitions. [2023-11-29 04:29:34,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 04:29:34,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:34,479 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:34,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 04:29:34,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:34,679 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:34,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:34,680 INFO L85 PathProgramCache]: Analyzing trace with hash -971312833, now seen corresponding path program 1 times [2023-11-29 04:29:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:34,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147910388] [2023-11-29 04:29:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:34,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:34,687 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868533490] [2023-11-29 04:29:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:34,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:34,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:34,688 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:34,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 04:29:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:34,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:29:34,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:35,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:35,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:35,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147910388] [2023-11-29 04:29:35,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:35,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868533490] [2023-11-29 04:29:35,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868533490] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:29:35,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:29:35,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:29:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883585007] [2023-11-29 04:29:35,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:35,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:29:35,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:29:35,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:29:35,287 INFO L87 Difference]: Start difference. First operand 2917 states and 3692 transitions. Second operand has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 04:29:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:37,072 INFO L93 Difference]: Finished difference Result 4262 states and 5385 transitions. [2023-11-29 04:29:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:29:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 189 [2023-11-29 04:29:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:37,077 INFO L225 Difference]: With dead ends: 4262 [2023-11-29 04:29:37,077 INFO L226 Difference]: Without dead ends: 4260 [2023-11-29 04:29:37,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=123, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:29:37,078 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 214 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:37,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 433 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:29:37,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2023-11-29 04:29:37,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 3418. [2023-11-29 04:29:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3079 states have (on average 1.1906463137382266) internal successors, (3666), 3092 states have internal predecessors, (3666), 323 states have call successors, (323), 2 states have call predecessors, (323), 2 states have return successors, (323), 323 states have call predecessors, (323), 323 states have call successors, (323) [2023-11-29 04:29:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 4312 transitions. [2023-11-29 04:29:37,924 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 4312 transitions. Word has length 189 [2023-11-29 04:29:37,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:37,924 INFO L495 AbstractCegarLoop]: Abstraction has 3418 states and 4312 transitions. [2023-11-29 04:29:37,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 04:29:37,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 4312 transitions. [2023-11-29 04:29:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 04:29:37,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:37,926 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:37,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 04:29:38,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:38,126 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:38,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1464721613, now seen corresponding path program 1 times [2023-11-29 04:29:38,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:38,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795210307] [2023-11-29 04:29:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:38,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:38,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:38,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734641189] [2023-11-29 04:29:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:38,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:38,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:38,135 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:38,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 04:29:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:38,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:29:38,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:38,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:38,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:38,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795210307] [2023-11-29 04:29:38,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:38,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734641189] [2023-11-29 04:29:38,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734641189] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:29:38,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:29:38,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:29:38,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272362946] [2023-11-29 04:29:38,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:29:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:29:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:29:38,720 INFO L87 Difference]: Start difference. First operand 3418 states and 4312 transitions. Second operand has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 04:29:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:40,332 INFO L93 Difference]: Finished difference Result 4081 states and 5095 transitions. [2023-11-29 04:29:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:29:40,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 191 [2023-11-29 04:29:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:40,336 INFO L225 Difference]: With dead ends: 4081 [2023-11-29 04:29:40,337 INFO L226 Difference]: Without dead ends: 4079 [2023-11-29 04:29:40,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=138, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:29:40,337 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 263 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:40,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 494 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:29:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2023-11-29 04:29:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3961. [2023-11-29 04:29:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3961 states, 3571 states have (on average 1.1853822458695042) internal successors, (4233), 3584 states have internal predecessors, (4233), 374 states have call successors, (374), 2 states have call predecessors, (374), 2 states have return successors, (374), 374 states have call predecessors, (374), 374 states have call successors, (374) [2023-11-29 04:29:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3961 states to 3961 states and 4981 transitions. [2023-11-29 04:29:41,258 INFO L78 Accepts]: Start accepts. Automaton has 3961 states and 4981 transitions. Word has length 191 [2023-11-29 04:29:41,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:41,258 INFO L495 AbstractCegarLoop]: Abstraction has 3961 states and 4981 transitions. [2023-11-29 04:29:41,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 04:29:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3961 states and 4981 transitions. [2023-11-29 04:29:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 04:29:41,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:41,260 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:41,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2023-11-29 04:29:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:41,460 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:41,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash 298396030, now seen corresponding path program 8 times [2023-11-29 04:29:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:41,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12793224] [2023-11-29 04:29:41,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:41,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:41,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271260961] [2023-11-29 04:29:41,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:29:41,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:41,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:41,470 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:41,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 04:29:41,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:29:41,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:41,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:29:41,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 04:29:42,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:42,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12793224] [2023-11-29 04:29:42,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271260961] [2023-11-29 04:29:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271260961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:42,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:42,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:29:42,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752384462] [2023-11-29 04:29:42,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:42,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:29:42,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:42,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:29:42,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:29:42,436 INFO L87 Difference]: Start difference. First operand 3961 states and 4981 transitions. Second operand has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:29:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:43,802 INFO L93 Difference]: Finished difference Result 3987 states and 5006 transitions. [2023-11-29 04:29:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:29:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 194 [2023-11-29 04:29:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:43,807 INFO L225 Difference]: With dead ends: 3987 [2023-11-29 04:29:43,807 INFO L226 Difference]: Without dead ends: 3986 [2023-11-29 04:29:43,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:29:43,807 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 53 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:43,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 438 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:29:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2023-11-29 04:29:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3961. [2023-11-29 04:29:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3961 states, 3571 states have (on average 1.185102212265472) internal successors, (4232), 3584 states have internal predecessors, (4232), 374 states have call successors, (374), 2 states have call predecessors, (374), 2 states have return successors, (374), 374 states have call predecessors, (374), 374 states have call successors, (374) [2023-11-29 04:29:44,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3961 states to 3961 states and 4980 transitions. [2023-11-29 04:29:44,712 INFO L78 Accepts]: Start accepts. Automaton has 3961 states and 4980 transitions. Word has length 194 [2023-11-29 04:29:44,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:44,713 INFO L495 AbstractCegarLoop]: Abstraction has 3961 states and 4980 transitions. [2023-11-29 04:29:44,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:29:44,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3961 states and 4980 transitions. [2023-11-29 04:29:44,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 04:29:44,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:44,714 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:29:44,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 04:29:44,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:44,915 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 04:29:44,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:44,915 INFO L85 PathProgramCache]: Analyzing trace with hash 891460592, now seen corresponding path program 9 times [2023-11-29 04:29:44,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:44,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506100025] [2023-11-29 04:29:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:44,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:44,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:44,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066805629] [2023-11-29 04:29:44,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:29:44,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:44,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:44,924 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:44,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a7209ec-8417-4132-b9a2-637f6391e827/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 04:29:46,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:29:46,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:46,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-29 04:29:46,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:48,430 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:31:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 72 proven. 153 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 04:31:32,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:33:24,584 WARN L293 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:33:41,102 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:34:15,487 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:35:07,587 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:35:15,597 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:35:37,222 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:35:47,682 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:35:51,690 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~p~0#1|)) (.cse7 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (.cse4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~s~0#1|)) (.cse5 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~q~0#1|))) (let ((.cse0 (* |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~q~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~s~0#1|)) (.cse3 (+ .cse4 .cse5 |c_ULTIMATE.start_main_~b~0#1|)) (.cse2 (+ .cse6 .cse7))) (or (< (+ .cse0 (* 2 .cse1)) (+ (* (* |c_ULTIMATE.start_main_~s~0#1| |c_ULTIMATE.start_main_~q~0#1|) 2) 9223372036854775808 (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~r~0#1|))) (= .cse2 .cse3) (< (+ 9223372036854775807 |c_ULTIMATE.start_main_~b~0#1|) |c_ULTIMATE.start_main_~a~0#1|) (not (= (+ .cse0 1) .cse1)) (< |c_ULTIMATE.start_main_~a~0#1| (+ |c_ULTIMATE.start_main_~b~0#1| 1)) (not (= (+ .cse4 .cse5) |c_ULTIMATE.start_main_~b~0#1|)) (< .cse3 .cse2) (not (= (+ .cse4 .cse5 |c_ULTIMATE.start_main_~a~0#1|) (+ .cse6 .cse7 |c_ULTIMATE.start_main_~b~0#1|)))))) is different from true [2023-11-29 04:35:59,766 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:36:07,703 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:36:15,734 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:36:27,789 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:36:51,095 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:36:58,667 WARN L293 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:37:10,048 WARN L293 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:37:18,903 WARN L293 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:37:37,072 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:37:49,590 WARN L293 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:38:05,514 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:38:10,646 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)