./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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 ca0a35d4b53e887915aee77ad0870e3a785e5005b2722a373bb8b33ec26ecb04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:24:47,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:24:47,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:24:47,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:24:47,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:24:47,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:24:47,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:24:47,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:24:47,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:24:47,693 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:24:47,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:24:47,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:24:47,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:24:47,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:24:47,696 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:24:47,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:24:47,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:24:47,698 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:24:47,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:24:47,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:24:47,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:24:47,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:24:47,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:24:47,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:24:47,702 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:24:47,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:24:47,703 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:24:47,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:24:47,704 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:24:47,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:24:47,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:24:47,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:24:47,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:24:47,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:24:47,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:24:47,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:24:47,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:24:47,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:24:47,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:24:47,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:24:47,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:24:47,708 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:24:47,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:24:47,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:24:47,709 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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a35d4b53e887915aee77ad0870e3a785e5005b2722a373bb8b33ec26ecb04 [2023-11-29 03:24:47,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:24:48,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:24:48,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:24:48,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:24:48,018 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:24:48,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-11-29 03:24:50,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:24:51,063 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:24:51,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-11-29 03:24:51,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/4e92a47a0/02c244234f364e4e87ccd5f55a4923a7/FLAG8e7fc4d8b [2023-11-29 03:24:51,087 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/4e92a47a0/02c244234f364e4e87ccd5f55a4923a7 [2023-11-29 03:24:51,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:24:51,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:24:51,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:24:51,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:24:51,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:24:51,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156f039f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51, skipping insertion in model container [2023-11-29 03:24:51,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:24:51,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:24:51,387 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:24:51,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:24:51,426 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:24:51,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51 WrapperNode [2023-11-29 03:24:51,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:24:51,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:24:51,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:24:51,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:24:51,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,471 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-11-29 03:24:51,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:24:51,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:24:51,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:24:51,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:24:51,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,503 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 03:24:51,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:24:51,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:24:51,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:24:51,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:24:51,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (1/1) ... [2023-11-29 03:24:51,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:24:51,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:51,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:24:51,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:24:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:24:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:24:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:24:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:24:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:24:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:24:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:24:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:24:51,674 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:24:51,676 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:24:51,950 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:24:51,984 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:24:51,984 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:24:51,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:24:51 BoogieIcfgContainer [2023-11-29 03:24:51,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:24:51,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:24:51,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:24:51,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:24:51,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:24:51" (1/3) ... [2023-11-29 03:24:51,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16908aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:24:51, skipping insertion in model container [2023-11-29 03:24:51,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:24:51" (2/3) ... [2023-11-29 03:24:51,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16908aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:24:51, skipping insertion in model container [2023-11-29 03:24:51,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:24:51" (3/3) ... [2023-11-29 03:24:51,996 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound50.c [2023-11-29 03:24:52,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:24:52,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:24:52,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:24:52,076 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;@7cbae07b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:24:52,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 03:24:52,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 43 states have (on average 1.813953488372093) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:24:52,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:52,089 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:52,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:52,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1971585362, now seen corresponding path program 1 times [2023-11-29 03:24:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280802515] [2023-11-29 03:24:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:52,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:52,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875300186] [2023-11-29 03:24:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:52,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:52,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:52,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:52,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:24:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:52,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:24:52,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:24:52,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:24:52,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280802515] [2023-11-29 03:24:52,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:52,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875300186] [2023-11-29 03:24:52,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875300186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:24:52,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:24:52,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:24:52,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619373367] [2023-11-29 03:24:52,674 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:24:52,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:24:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:24:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:24:52,716 INFO L87 Difference]: Start difference. First operand has 81 states, 43 states have (on average 1.813953488372093) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:53,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:53,027 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2023-11-29 03:24:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:24:53,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2023-11-29 03:24:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:53,040 INFO L225 Difference]: With dead ends: 158 [2023-11-29 03:24:53,040 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 03:24:53,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:24:53,049 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 124 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:53,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 87 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:24:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 03:24:53,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-29 03:24:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.6666666666666667) internal successors, (70), 69 states have internal predecessors, (70), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:24:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2023-11-29 03:24:53,102 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 20 [2023-11-29 03:24:53,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:53,104 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2023-11-29 03:24:53,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2023-11-29 03:24:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 03:24:53,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:53,107 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:53,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:24:53,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:53,312 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:53,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:53,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1821788538, now seen corresponding path program 1 times [2023-11-29 03:24:53,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:53,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224779627] [2023-11-29 03:24:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:53,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104942404] [2023-11-29 03:24:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:53,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:53,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:53,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:53,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:24:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:53,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:24:53,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:24:53,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:24:53,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:53,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224779627] [2023-11-29 03:24:53,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:53,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104942404] [2023-11-29 03:24:53,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104942404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:53,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:53,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:24:53,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021871577] [2023-11-29 03:24:53,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:53,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:24:53,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:53,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:24:53,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:24:53,420 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:53,601 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2023-11-29 03:24:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:24:53,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2023-11-29 03:24:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:53,604 INFO L225 Difference]: With dead ends: 129 [2023-11-29 03:24:53,604 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 03:24:53,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:24:53,607 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 145 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 86 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:24:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 03:24:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 92. [2023-11-29 03:24:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 84 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 107 transitions. [2023-11-29 03:24:53,626 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 107 transitions. Word has length 23 [2023-11-29 03:24:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:53,627 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 107 transitions. [2023-11-29 03:24:53,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 107 transitions. [2023-11-29 03:24:53,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:24:53,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:53,629 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:53,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 03:24:53,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:53,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:53,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash 640869885, now seen corresponding path program 1 times [2023-11-29 03:24:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:53,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434985055] [2023-11-29 03:24:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:53,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291513608] [2023-11-29 03:24:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:53,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:53,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:53,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:53,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:24:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:53,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:24:53,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:24:53,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:24:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434985055] [2023-11-29 03:24:53,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:53,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291513608] [2023-11-29 03:24:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291513608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:53,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:53,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:24:53,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866341594] [2023-11-29 03:24:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:53,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:24:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:24:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:24:53,961 INFO L87 Difference]: Start difference. First operand 92 states and 107 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:54,145 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2023-11-29 03:24:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:24:54,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-29 03:24:54,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:54,147 INFO L225 Difference]: With dead ends: 122 [2023-11-29 03:24:54,147 INFO L226 Difference]: Without dead ends: 117 [2023-11-29 03:24:54,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:24:54,149 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 129 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:54,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 87 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:24:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-29 03:24:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 91. [2023-11-29 03:24:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.55) internal successors, (93), 83 states have internal predecessors, (93), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2023-11-29 03:24:54,162 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 24 [2023-11-29 03:24:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:54,163 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2023-11-29 03:24:54,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2023-11-29 03:24:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 03:24:54,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:54,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:54,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:24:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:54,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:54,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1607869988, now seen corresponding path program 1 times [2023-11-29 03:24:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713199686] [2023-11-29 03:24:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:54,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:54,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:54,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10188600] [2023-11-29 03:24:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:54,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:54,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:54,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:54,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:24:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:54,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:24:54,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:24:54,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:24:54,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:54,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713199686] [2023-11-29 03:24:54,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:54,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10188600] [2023-11-29 03:24:54,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10188600] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:24:54,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:24:54,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:24:54,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725404670] [2023-11-29 03:24:54,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:24:54,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:24:54,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:54,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:24:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:24:54,941 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:55,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:55,222 INFO L93 Difference]: Finished difference Result 117 states and 120 transitions. [2023-11-29 03:24:55,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:24:55,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2023-11-29 03:24:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:55,225 INFO L225 Difference]: With dead ends: 117 [2023-11-29 03:24:55,225 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 03:24:55,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:24:55,227 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 220 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:55,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 97 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:24:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 03:24:55,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2023-11-29 03:24:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 89 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2023-11-29 03:24:55,241 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 25 [2023-11-29 03:24:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:55,242 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2023-11-29 03:24:55,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2023-11-29 03:24:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:24:55,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:55,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:55,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:24:55,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:55,448 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:55,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:55,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1640843936, now seen corresponding path program 1 times [2023-11-29 03:24:55,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:55,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897421799] [2023-11-29 03:24:55,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:55,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:55,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154831987] [2023-11-29 03:24:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:55,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:55,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:55,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:55,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:24:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:55,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:24:55,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:24:55,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:24:55,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:55,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897421799] [2023-11-29 03:24:55,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:55,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154831987] [2023-11-29 03:24:55,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154831987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:55,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:55,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:24:55,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999741502] [2023-11-29 03:24:55,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:55,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:24:55,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:55,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:24:55,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:24:55,708 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:55,867 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2023-11-29 03:24:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:24:55,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-29 03:24:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:55,869 INFO L225 Difference]: With dead ends: 115 [2023-11-29 03:24:55,869 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 03:24:55,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:24:55,871 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 104 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:55,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 91 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:24:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 03:24:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 98. [2023-11-29 03:24:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 90 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2023-11-29 03:24:55,887 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 29 [2023-11-29 03:24:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:55,888 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2023-11-29 03:24:55,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2023-11-29 03:24:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:24:55,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:55,890 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:55,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:24:56,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:56,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:56,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash -673445469, now seen corresponding path program 1 times [2023-11-29 03:24:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:56,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972929731] [2023-11-29 03:24:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:56,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:56,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074682785] [2023-11-29 03:24:56,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:56,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:56,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:56,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:56,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:24:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:56,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:24:56,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:24:56,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:24:56,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:56,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972929731] [2023-11-29 03:24:56,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:56,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074682785] [2023-11-29 03:24:56,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074682785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:56,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:24:56,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408494126] [2023-11-29 03:24:56,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:56,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:24:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:56,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:24:56,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:24:56,348 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:56,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:56,424 INFO L93 Difference]: Finished difference Result 113 states and 116 transitions. [2023-11-29 03:24:56,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:24:56,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 03:24:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:56,426 INFO L225 Difference]: With dead ends: 113 [2023-11-29 03:24:56,426 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 03:24:56,427 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 03:24:56,428 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 58 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:56,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 110 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:24:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 03:24:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2023-11-29 03:24:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 91 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2023-11-29 03:24:56,442 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 30 [2023-11-29 03:24:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:56,442 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2023-11-29 03:24:56,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:24:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2023-11-29 03:24:56,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:24:56,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:56,444 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:24:56,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:24:56,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:56,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:56,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 598027010, now seen corresponding path program 1 times [2023-11-29 03:24:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:56,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013144769] [2023-11-29 03:24:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:56,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:56,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:56,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541642602] [2023-11-29 03:24:56,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:56,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:56,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:56,662 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:56,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:24:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:56,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:24:56,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:24:56,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:24:57,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:57,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013144769] [2023-11-29 03:24:57,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:57,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541642602] [2023-11-29 03:24:57,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541642602] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:24:57,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:24:57,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:24:57,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737142734] [2023-11-29 03:24:57,301 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:24:57,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:24:57,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:57,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:24:57,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:24:57,303 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:57,533 INFO L93 Difference]: Finished difference Result 107 states and 110 transitions. [2023-11-29 03:24:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:24:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2023-11-29 03:24:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:57,535 INFO L225 Difference]: With dead ends: 107 [2023-11-29 03:24:57,535 INFO L226 Difference]: Without dead ends: 105 [2023-11-29 03:24:57,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:24:57,537 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 200 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:57,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 91 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:24:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-29 03:24:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 100. [2023-11-29 03:24:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 92 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:24:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2023-11-29 03:24:57,547 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 31 [2023-11-29 03:24:57,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:57,547 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2023-11-29 03:24:57,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:24:57,548 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2023-11-29 03:24:57,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 03:24:57,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:57,549 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:24:57,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:24:57,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:24:57,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:57,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1358968197, now seen corresponding path program 1 times [2023-11-29 03:24:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235230547] [2023-11-29 03:24:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:57,763 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797681753] [2023-11-29 03:24:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:57,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:57,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:57,765 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:57,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:24:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:57,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:24:57,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:24:58,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235230547] [2023-11-29 03:25:10,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797681753] [2023-11-29 03:25:10,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797681753] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:10,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:10,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:25:10,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809835422] [2023-11-29 03:25:10,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:10,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:25:10,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:10,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:25:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2023-11-29 03:25:10,619 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:25:11,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:11,068 INFO L93 Difference]: Finished difference Result 109 states and 112 transitions. [2023-11-29 03:25:11,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:25:11,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-29 03:25:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:11,070 INFO L225 Difference]: With dead ends: 109 [2023-11-29 03:25:11,070 INFO L226 Difference]: Without dead ends: 96 [2023-11-29 03:25:11,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=47, Invalid=132, Unknown=3, NotChecked=0, Total=182 [2023-11-29 03:25:11,071 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 196 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:11,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 77 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:25:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-29 03:25:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2023-11-29 03:25:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 84 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2023-11-29 03:25:11,079 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 32 [2023-11-29 03:25:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:11,079 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2023-11-29 03:25:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:25:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2023-11-29 03:25:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:25:11,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:11,082 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:11,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:25:11,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,287 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:11,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:11,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1608527486, now seen corresponding path program 1 times [2023-11-29 03:25:11,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:11,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966295296] [2023-11-29 03:25:11,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:11,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:11,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100860064] [2023-11-29 03:25:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:11,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:11,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:25:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:11,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:25:11,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:25:11,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:25:11,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:11,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966295296] [2023-11-29 03:25:11,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:11,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100860064] [2023-11-29 03:25:11,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100860064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:25:11,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:25:11,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:25:11,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291095564] [2023-11-29 03:25:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:25:11,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:25:11,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:11,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:25:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:25:11,383 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:11,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:11,398 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2023-11-29 03:25:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:25:11,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-29 03:25:11,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:11,400 INFO L225 Difference]: With dead ends: 92 [2023-11-29 03:25:11,400 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 03:25:11,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 03:25:11,401 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:11,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 82 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:25:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 03:25:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 03:25:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 83 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2023-11-29 03:25:11,410 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 39 [2023-11-29 03:25:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:11,411 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2023-11-29 03:25:11,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2023-11-29 03:25:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 03:25:11,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:11,412 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:11,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:25:11,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,616 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:11,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1675255567, now seen corresponding path program 1 times [2023-11-29 03:25:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:11,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840965956] [2023-11-29 03:25:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:11,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:11,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674654537] [2023-11-29 03:25:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:11,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:11,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:25:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:11,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:25:11,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:25:11,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:25:11,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840965956] [2023-11-29 03:25:11,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674654537] [2023-11-29 03:25:11,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674654537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:25:11,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:25:11,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:25:11,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867234197] [2023-11-29 03:25:11,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:25:11,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:25:11,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:25:11,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:25:11,709 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:11,725 INFO L93 Difference]: Finished difference Result 92 states and 95 transitions. [2023-11-29 03:25:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:25:11,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-29 03:25:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:11,727 INFO L225 Difference]: With dead ends: 92 [2023-11-29 03:25:11,727 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 03:25:11,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 03:25:11,728 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:11,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:25:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 03:25:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 03:25:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 83 states have internal predecessors, (84), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2023-11-29 03:25:11,735 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 40 [2023-11-29 03:25:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:11,736 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2023-11-29 03:25:11,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2023-11-29 03:25:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:25:11,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:11,738 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:11,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:25:11,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:25:11,939 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:11,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1269987595, now seen corresponding path program 1 times [2023-11-29 03:25:11,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:11,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091324000] [2023-11-29 03:25:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:11,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:11,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885336604] [2023-11-29 03:25:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:11,953 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:11,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:25:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:12,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:25:12,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:12,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:12,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091324000] [2023-11-29 03:25:12,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:12,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885336604] [2023-11-29 03:25:12,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885336604] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:12,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:12,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:25:12,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427289827] [2023-11-29 03:25:12,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:25:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:25:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:25:12,386 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 03:25:13,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:13,304 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2023-11-29 03:25:13,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:25:13,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 46 [2023-11-29 03:25:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:13,305 INFO L225 Difference]: With dead ends: 145 [2023-11-29 03:25:13,305 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 03:25:13,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 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 03:25:13,306 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 140 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:13,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 102 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:25:13,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 03:25:13,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 113. [2023-11-29 03:25:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 104 states have internal predecessors, (120), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 132 transitions. [2023-11-29 03:25:13,313 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 132 transitions. Word has length 46 [2023-11-29 03:25:13,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:13,313 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 132 transitions. [2023-11-29 03:25:13,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 03:25:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 132 transitions. [2023-11-29 03:25:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 03:25:13,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:13,315 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:13,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 03:25:13,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:13,515 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:13,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:13,516 INFO L85 PathProgramCache]: Analyzing trace with hash -687365097, now seen corresponding path program 1 times [2023-11-29 03:25:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:13,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803389343] [2023-11-29 03:25:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:13,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:13,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975413496] [2023-11-29 03:25:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:13,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:13,526 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:13,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:25:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:13,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:25:13,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:13,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:14,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:14,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803389343] [2023-11-29 03:25:14,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:14,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975413496] [2023-11-29 03:25:14,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975413496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:14,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:14,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:25:14,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274834277] [2023-11-29 03:25:14,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:14,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:25:14,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:14,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:25:14,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:25:14,119 INFO L87 Difference]: Start difference. First operand 113 states and 132 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:14,371 INFO L93 Difference]: Finished difference Result 113 states and 132 transitions. [2023-11-29 03:25:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:25:14,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2023-11-29 03:25:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:14,373 INFO L225 Difference]: With dead ends: 113 [2023-11-29 03:25:14,373 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 03:25:14,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:14,374 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 101 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:14,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 102 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:25:14,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 03:25:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 03:25:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 102 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2023-11-29 03:25:14,384 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 48 [2023-11-29 03:25:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:14,384 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2023-11-29 03:25:14,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2023-11-29 03:25:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:25:14,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:14,386 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:14,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:25:14,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:14,588 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:14,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash 166518528, now seen corresponding path program 1 times [2023-11-29 03:25:14,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:14,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815490552] [2023-11-29 03:25:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:14,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:14,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311604456] [2023-11-29 03:25:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:14,601 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:14,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:25:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:14,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:25:14,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:15,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:15,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:15,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815490552] [2023-11-29 03:25:15,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311604456] [2023-11-29 03:25:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311604456] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:15,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:15,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:25:15,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269739551] [2023-11-29 03:25:15,315 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:15,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:25:15,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:25:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:25:15,317 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:15,716 INFO L93 Difference]: Finished difference Result 140 states and 145 transitions. [2023-11-29 03:25:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:25:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2023-11-29 03:25:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:15,718 INFO L225 Difference]: With dead ends: 140 [2023-11-29 03:25:15,718 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 03:25:15,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:15,719 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 143 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:15,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 125 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:25:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 03:25:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 111. [2023-11-29 03:25:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 102 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2023-11-29 03:25:15,729 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 49 [2023-11-29 03:25:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:15,730 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2023-11-29 03:25:15,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2023-11-29 03:25:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 03:25:15,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:15,731 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:15,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:25:15,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:25:15,932 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:15,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:15,932 INFO L85 PathProgramCache]: Analyzing trace with hash 867107129, now seen corresponding path program 1 times [2023-11-29 03:25:15,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:15,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276540295] [2023-11-29 03:25:15,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:15,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:15,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:15,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304615559] [2023-11-29 03:25:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:15,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:15,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:15,943 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:15,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:25:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:15,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:25:15,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:16,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:17,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:17,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276540295] [2023-11-29 03:25:17,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:17,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304615559] [2023-11-29 03:25:17,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304615559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:17,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:17,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:25:17,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003158099] [2023-11-29 03:25:17,203 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:17,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:25:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:17,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:25:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:25:17,204 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:17,578 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2023-11-29 03:25:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:25:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-29 03:25:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:17,580 INFO L225 Difference]: With dead ends: 111 [2023-11-29 03:25:17,580 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 03:25:17,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:25:17,581 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 86 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:17,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 124 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:25:17,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 03:25:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-29 03:25:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 82 states have (on average 1.353658536585366) internal successors, (111), 100 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2023-11-29 03:25:17,588 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 50 [2023-11-29 03:25:17,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:17,589 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2023-11-29 03:25:17,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:17,589 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2023-11-29 03:25:17,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:25:17,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:17,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 03:25:17,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:25:17,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:25:17,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:17,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1110517282, now seen corresponding path program 1 times [2023-11-29 03:25:17,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:17,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700140946] [2023-11-29 03:25:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:17,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:17,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565492430] [2023-11-29 03:25:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:17,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:17,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:17,802 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:17,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:25:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:17,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:25:17,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:18,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:18,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700140946] [2023-11-29 03:25:18,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:18,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565492430] [2023-11-29 03:25:18,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565492430] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:18,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:18,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:25:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157473019] [2023-11-29 03:25:18,611 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:18,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:25:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:25:18,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:18,613 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:18,878 INFO L93 Difference]: Finished difference Result 109 states and 123 transitions. [2023-11-29 03:25:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:25:18,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 51 [2023-11-29 03:25:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:18,880 INFO L225 Difference]: With dead ends: 109 [2023-11-29 03:25:18,880 INFO L226 Difference]: Without dead ends: 105 [2023-11-29 03:25:18,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:25:18,881 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 95 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:18,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 124 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:25:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-29 03:25:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-29 03:25:18,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 96 states have internal predecessors, (105), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:18,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2023-11-29 03:25:18,891 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 51 [2023-11-29 03:25:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:18,891 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2023-11-29 03:25:18,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2023-11-29 03:25:18,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:25:18,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:18,893 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 03:25:18,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 03:25:19,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:25:19,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:19,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash 66297435, now seen corresponding path program 1 times [2023-11-29 03:25:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:19,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037798879] [2023-11-29 03:25:19,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:19,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:19,105 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:19,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689329423] [2023-11-29 03:25:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:19,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:19,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:19,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:19,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:25:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:19,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:25:19,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:25:19,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037798879] [2023-11-29 03:25:19,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:19,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689329423] [2023-11-29 03:25:19,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689329423] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:19,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:19,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:25:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202802770] [2023-11-29 03:25:19,380 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:19,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:25:19,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:25:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:25:19,381 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:19,507 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2023-11-29 03:25:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:25:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2023-11-29 03:25:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:19,508 INFO L225 Difference]: With dead ends: 105 [2023-11-29 03:25:19,508 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 03:25:19,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:25:19,509 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 36 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:19,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 112 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:25:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 03:25:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 03:25:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 94 states have internal predecessors, (102), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:19,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2023-11-29 03:25:19,515 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 52 [2023-11-29 03:25:19,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:19,515 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2023-11-29 03:25:19,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:25:19,516 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2023-11-29 03:25:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:25:19,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:19,516 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:19,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:25:19,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:25:19,717 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:19,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash -712672387, now seen corresponding path program 1 times [2023-11-29 03:25:19,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:19,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136609238] [2023-11-29 03:25:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:19,724 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:19,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400361325] [2023-11-29 03:25:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:19,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:19,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:19,726 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:19,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:25:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:19,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:25:19,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:20,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:20,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136609238] [2023-11-29 03:25:20,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400361325] [2023-11-29 03:25:20,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400361325] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:20,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:20,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:25:20,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880276343] [2023-11-29 03:25:20,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:20,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:25:20,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:25:20,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:25:20,599 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:20,975 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2023-11-29 03:25:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:25:20,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 54 [2023-11-29 03:25:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:20,977 INFO L225 Difference]: With dead ends: 103 [2023-11-29 03:25:20,977 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:25:20,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:25:20,978 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 115 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:20,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 86 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:25:20,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:25:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-29 03:25:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 91 states have internal predecessors, (97), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:20,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2023-11-29 03:25:20,985 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 54 [2023-11-29 03:25:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:20,986 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2023-11-29 03:25:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2023-11-29 03:25:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:25:20,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:20,987 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-29 03:25:20,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:25:21,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:25:21,192 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:21,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -618007450, now seen corresponding path program 1 times [2023-11-29 03:25:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560381243] [2023-11-29 03:25:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:21,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:21,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:21,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192542647] [2023-11-29 03:25:21,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:21,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:21,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:21,202 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:21,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:25:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:21,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:25:21,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:21,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:21,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:21,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560381243] [2023-11-29 03:25:21,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:21,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192542647] [2023-11-29 03:25:21,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192542647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:21,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:21,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:25:21,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169662029] [2023-11-29 03:25:21,959 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:21,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:25:21,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:21,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:25:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:25:21,961 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:22,727 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2023-11-29 03:25:22,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:25:22,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2023-11-29 03:25:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:22,728 INFO L225 Difference]: With dead ends: 117 [2023-11-29 03:25:22,728 INFO L226 Difference]: Without dead ends: 115 [2023-11-29 03:25:22,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:25:22,729 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 144 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:22,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 121 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:25:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-29 03:25:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2023-11-29 03:25:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 99 states have internal predecessors, (104), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2023-11-29 03:25:22,744 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 55 [2023-11-29 03:25:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:22,745 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2023-11-29 03:25:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:25:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2023-11-29 03:25:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:25:22,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:22,745 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-11-29 03:25:22,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:25:22,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:25:22,946 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:22,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1978361697, now seen corresponding path program 1 times [2023-11-29 03:25:22,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:22,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294875638] [2023-11-29 03:25:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:22,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:22,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:22,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832635744] [2023-11-29 03:25:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:22,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:22,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:22,954 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:22,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:25:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:22,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:25:22,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:23,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:25:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294875638] [2023-11-29 03:25:23,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832635744] [2023-11-29 03:25:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832635744] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-29 03:25:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756241709] [2023-11-29 03:25:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:25:23,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:25:23,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:23,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:25:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:25:23,751 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:25:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:24,114 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2023-11-29 03:25:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:25:24,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 56 [2023-11-29 03:25:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:24,116 INFO L225 Difference]: With dead ends: 108 [2023-11-29 03:25:24,116 INFO L226 Difference]: Without dead ends: 106 [2023-11-29 03:25:24,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:25:24,117 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:24,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 112 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:25:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-29 03:25:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-11-29 03:25:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 97 states have internal predecessors, (101), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2023-11-29 03:25:24,126 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 56 [2023-11-29 03:25:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:24,127 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2023-11-29 03:25:24,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:25:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2023-11-29 03:25:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:25:24,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:24,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 03:25:24,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 03:25:24,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:24,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:24,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1199670392, now seen corresponding path program 1 times [2023-11-29 03:25:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:24,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875301179] [2023-11-29 03:25:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:24,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004623548] [2023-11-29 03:25:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:24,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:24,338 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:24,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:25:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:24,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:25:24,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:25:24,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:25:25,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:25,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875301179] [2023-11-29 03:25:25,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:25,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004623548] [2023-11-29 03:25:25,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004623548] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:25,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:25,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-29 03:25:25,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037873093] [2023-11-29 03:25:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:25:25,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:25:25,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:25:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:25:25,658 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:25:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:26,049 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2023-11-29 03:25:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:25:26,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2023-11-29 03:25:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:26,051 INFO L225 Difference]: With dead ends: 106 [2023-11-29 03:25:26,051 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 03:25:26,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:25:26,052 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 35 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:26,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 114 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:25:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 03:25:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-29 03:25:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.0875) internal successors, (87), 85 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2023-11-29 03:25:26,063 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 57 [2023-11-29 03:25:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:26,064 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2023-11-29 03:25:26,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:25:26,065 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2023-11-29 03:25:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:25:26,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:26,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-29 03:25:26,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 03:25:26,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:26,266 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:26,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:26,267 INFO L85 PathProgramCache]: Analyzing trace with hash -528485870, now seen corresponding path program 1 times [2023-11-29 03:25:26,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:26,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913780129] [2023-11-29 03:25:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:26,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:26,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:26,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52680229] [2023-11-29 03:25:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:26,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:26,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:26,277 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:26,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:25:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:26,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:25:26,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:25:26,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:25:26,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913780129] [2023-11-29 03:25:26,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52680229] [2023-11-29 03:25:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52680229] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:26,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:26,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:25:26,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008287122] [2023-11-29 03:25:26,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:26,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:25:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:26,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:25:26,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:25:26,446 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 03:25:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:26,485 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2023-11-29 03:25:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:25:26,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 65 [2023-11-29 03:25:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:26,487 INFO L225 Difference]: With dead ends: 155 [2023-11-29 03:25:26,487 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 03:25:26,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:25:26,489 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 41 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:26,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 196 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:25:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 03:25:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 130. [2023-11-29 03:25:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.1228070175438596) internal successors, (128), 119 states have internal predecessors, (128), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:25:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 144 transitions. [2023-11-29 03:25:26,503 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 144 transitions. Word has length 65 [2023-11-29 03:25:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:26,503 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 144 transitions. [2023-11-29 03:25:26,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 03:25:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 144 transitions. [2023-11-29 03:25:26,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:25:26,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:26,504 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:26,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:25:26,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:26,705 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:26,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -4653219, now seen corresponding path program 2 times [2023-11-29 03:25:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:26,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006120271] [2023-11-29 03:25:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:26,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:26,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017859042] [2023-11-29 03:25:26,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:25:26,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:26,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:26,714 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:26,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:25:26,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:25:26,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:26,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:25:26,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:25:27,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:27,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:27,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006120271] [2023-11-29 03:25:27,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:27,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017859042] [2023-11-29 03:25:27,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017859042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:27,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:27,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:25:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928166122] [2023-11-29 03:25:27,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:27,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:25:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:27,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:25:27,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:27,484 INFO L87 Difference]: Start difference. First operand 130 states and 144 transitions. Second operand has 10 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:27,827 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2023-11-29 03:25:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:25:27,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 74 [2023-11-29 03:25:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:27,829 INFO L225 Difference]: With dead ends: 142 [2023-11-29 03:25:27,829 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 03:25:27,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:25:27,831 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 157 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:27,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 117 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:25:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 03:25:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 130. [2023-11-29 03:25:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.105263157894737) internal successors, (126), 119 states have internal predecessors, (126), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:25:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 142 transitions. [2023-11-29 03:25:27,844 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 142 transitions. Word has length 74 [2023-11-29 03:25:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:27,844 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 142 transitions. [2023-11-29 03:25:27,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 142 transitions. [2023-11-29 03:25:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 03:25:27,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:27,846 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:27,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:25:28,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 03:25:28,046 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:28,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:28,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1191287555, now seen corresponding path program 2 times [2023-11-29 03:25:28,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:28,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577021582] [2023-11-29 03:25:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:28,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:28,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:28,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405451322] [2023-11-29 03:25:28,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:25:28,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:28,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:28,056 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:28,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:25:28,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:25:28,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:28,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:25:28,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:25:29,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:29,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:29,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577021582] [2023-11-29 03:25:29,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405451322] [2023-11-29 03:25:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405451322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:29,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:29,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:25:29,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329897626] [2023-11-29 03:25:29,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:29,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:25:29,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:29,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:25:29,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:29,780 INFO L87 Difference]: Start difference. First operand 130 states and 142 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:30,596 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2023-11-29 03:25:30,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:25:30,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 80 [2023-11-29 03:25:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:30,598 INFO L225 Difference]: With dead ends: 141 [2023-11-29 03:25:30,598 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 03:25:30,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:25:30,599 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 124 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:30,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 150 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:25:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 03:25:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-29 03:25:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.0789473684210527) internal successors, (123), 119 states have internal predecessors, (123), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:25:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 139 transitions. [2023-11-29 03:25:30,610 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 139 transitions. Word has length 80 [2023-11-29 03:25:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:30,610 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 139 transitions. [2023-11-29 03:25:30,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:25:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 139 transitions. [2023-11-29 03:25:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 03:25:30,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:30,612 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:30,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:25:30,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:25:30,812 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:30,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:30,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1111223904, now seen corresponding path program 3 times [2023-11-29 03:25:30,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:30,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325042304] [2023-11-29 03:25:30,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:30,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:30,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:30,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178830005] [2023-11-29 03:25:30,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:25:30,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:30,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:30,822 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:30,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:25:31,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:25:31,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:31,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:25:31,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:25:51,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:52,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325042304] [2023-11-29 03:25:52,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:52,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178830005] [2023-11-29 03:25:52,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178830005] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:52,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:52,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:25:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812913904] [2023-11-29 03:25:52,366 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:52,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:25:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:52,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:25:52,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=199, Unknown=7, NotChecked=0, Total=272 [2023-11-29 03:25:52,368 INFO L87 Difference]: Start difference. First operand 130 states and 139 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:25:53,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:25:57,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:01,796 WARN L539 Checker$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 03:26:08,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:17,109 WARN L539 Checker$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 03:26:29,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:33,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:37,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:41,220 WARN L539 Checker$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 03:26:45,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:49,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:53,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:06,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:10,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:12,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:16,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:28,783 WARN L539 Checker$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 03:27:32,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:36,791 WARN L539 Checker$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 03:27:40,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:44,801 WARN L539 Checker$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 03:27:48,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:17,059 WARN L539 Checker$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 03:28:18,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:20,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:24,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:28,632 WARN L539 Checker$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 03:28:32,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:35,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:38,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:39,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:43,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:45,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:46,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:48,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:49,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:50,704 WARN L539 Checker$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 03:28:53,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:55,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:28:57,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:29:00,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:29:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:29:00,371 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2023-11-29 03:29:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:29:00,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 99 [2023-11-29 03:29:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:29:00,373 INFO L225 Difference]: With dead ends: 132 [2023-11-29 03:29:00,373 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 03:29:00,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 79.5s TimeCoverageRelationStatistics Valid=151, Invalid=477, Unknown=22, NotChecked=0, Total=650 [2023-11-29 03:29:00,374 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 117 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 6 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:29:00,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 221 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 591 Invalid, 27 Unknown, 0 Unchecked, 127.7s Time] [2023-11-29 03:29:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 03:29:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2023-11-29 03:29:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.0701754385964912) internal successors, (122), 119 states have internal predecessors, (122), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:29:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2023-11-29 03:29:00,387 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 99 [2023-11-29 03:29:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:29:00,388 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 138 transitions. [2023-11-29 03:29:00,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:29:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 138 transitions. [2023-11-29 03:29:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 03:29:00,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:29:00,389 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:29:00,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 03:29:00,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:29:00,589 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:29:00,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:29:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash 423145222, now seen corresponding path program 3 times [2023-11-29 03:29:00,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:29:00,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810295873] [2023-11-29 03:29:00,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:29:00,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:29:00,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:29:00,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310616947] [2023-11-29 03:29:00,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:29:00,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:29:00,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:29:00,599 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:29:00,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:29:07,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:29:07,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:29:07,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 03:29:07,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:29:29,419 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:30:27,214 WARN L293 SmtUtils]: Spent 9.82s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:31:03,272 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~y~0#1_68| Int) (|ULTIMATE.start_main_~z~0#1| Int)) (let ((.cse6 (* |v_ULTIMATE.start_main_~y~0#1_68| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) (.cse1 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))) (let ((.cse0 (* |v_ULTIMATE.start_main_~y~0#1_68| |c_ULTIMATE.start_main_~az~0#1|)) (.cse4 (+ .cse6 .cse1)) (.cse2 (* |v_ULTIMATE.start_main_~y~0#1_68| |ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) (.cse5 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse3 (* |v_ULTIMATE.start_main_~y~0#1_68| |ULTIMATE.start_main_~z~0#1|))) (and (<= (+ .cse0 .cse1) (+ .cse2 9223372036854775807 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= .cse2 (+ 9223372036854775808 .cse1)) (<= (+ .cse2 |ULTIMATE.start_main_~x~0#1|) (+ .cse0 9223372036854775808 .cse1)) (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= .cse0 9223372036854775807) (= .cse3 |c_ULTIMATE.start_main_~y~0#1|) (<= .cse1 (+ 9223372036854775807 |ULTIMATE.start_main_~x~0#1|)) (<= .cse4 (+ .cse5 9223372036854775807)) (<= .cse2 9223372036854775807) (= (+ .cse5 |c_ULTIMATE.start_main_~az~0#1|) .cse4) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= .cse1 (+ .cse2 9223372036854775807)) (<= .cse5 (+ .cse6 9223372036854775808 .cse1)) (<= .cse3 9223372036854775807) (<= .cse1 9223372036854775807))))) is different from true [2023-11-29 03:31:11,655 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:31:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 60 proven. 5 refuted. 0 times theorem prover too weak. 43 trivial. 6 not checked. [2023-11-29 03:31:13,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-29 03:31:19,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810295873] [2023-11-29 03:31:19,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310616947] [2023-11-29 03:31:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310616947] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:19,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 27 [2023-11-29 03:31:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245706964] [2023-11-29 03:31:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:31:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:31:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:31:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=535, Unknown=3, NotChecked=50, Total=756 [2023-11-29 03:31:19,536 INFO L87 Difference]: Start difference. First operand 130 states and 138 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:31:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:21,478 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2023-11-29 03:31:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:31:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 105 [2023-11-29 03:31:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:21,479 INFO L225 Difference]: With dead ends: 130 [2023-11-29 03:31:21,480 INFO L226 Difference]: Without dead ends: 120 [2023-11-29 03:31:21,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=204, Invalid=727, Unknown=3, NotChecked=58, Total=992 [2023-11-29 03:31:21,481 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 78 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:21,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 127 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:31:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-29 03:31:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-29 03:31:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 106 states have (on average 1.0377358490566038) internal successors, (110), 109 states have internal predecessors, (110), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:31:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2023-11-29 03:31:21,497 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 105 [2023-11-29 03:31:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:21,497 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2023-11-29 03:31:21,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 03:31:21,498 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2023-11-29 03:31:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 03:31:21,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:21,499 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:21,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:31:21,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:21,700 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:21,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:21,700 INFO L85 PathProgramCache]: Analyzing trace with hash -29409162, now seen corresponding path program 1 times [2023-11-29 03:31:21,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:21,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242255488] [2023-11-29 03:31:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:21,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:21,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211086582] [2023-11-29 03:31:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:21,711 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:21,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:31:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:22,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 03:31:22,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 132 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 03:31:24,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:25,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:25,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242255488] [2023-11-29 03:31:25,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:25,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211086582] [2023-11-29 03:31:25,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211086582] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:25,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:25,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:31:25,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503220601] [2023-11-29 03:31:25,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:25,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:31:25,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:25,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:31:25,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:31:25,032 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 17 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:31:25,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:25,653 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2023-11-29 03:31:25,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:31:25,654 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 119 [2023-11-29 03:31:25,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:25,655 INFO L225 Difference]: With dead ends: 127 [2023-11-29 03:31:25,655 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:31:25,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:31:25,656 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:25,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 197 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:31:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:31:25,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2023-11-29 03:31:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 110 states have (on average 1.0363636363636364) internal successors, (114), 113 states have internal predecessors, (114), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:31:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2023-11-29 03:31:25,669 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 119 [2023-11-29 03:31:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:25,669 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2023-11-29 03:31:25,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 16 states have internal predecessors, (96), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:31:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2023-11-29 03:31:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 03:31:25,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:25,670 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:25,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:31:25,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:31:25,870 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:25,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1802569304, now seen corresponding path program 1 times [2023-11-29 03:31:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:25,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509025597] [2023-11-29 03:31:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:25,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:25,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173659207] [2023-11-29 03:31:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:25,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:25,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:25,880 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:25,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:31:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:31:26,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:31:26,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 03:31:26,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:28,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509025597] [2023-11-29 03:31:28,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:28,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173659207] [2023-11-29 03:31:28,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173659207] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:28,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:28,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:31:28,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511637552] [2023-11-29 03:31:28,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:28,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:31:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:31:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:31:28,362 INFO L87 Difference]: Start difference. First operand 124 states and 130 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 03:31:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:30,062 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2023-11-29 03:31:30,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:31:30,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) Word has length 121 [2023-11-29 03:31:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:30,064 INFO L225 Difference]: With dead ends: 127 [2023-11-29 03:31:30,064 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:31:30,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:31:30,065 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:30,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 104 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:31:30,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:31:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-29 03:31:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 112 states have (on average 1.0357142857142858) internal successors, (116), 115 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:31:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 132 transitions. [2023-11-29 03:31:30,085 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 132 transitions. Word has length 121 [2023-11-29 03:31:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:30,086 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 132 transitions. [2023-11-29 03:31:30,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 03:31:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 132 transitions. [2023-11-29 03:31:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 03:31:30,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:30,087 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:30,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:31:30,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:30,288 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:30,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:30,288 INFO L85 PathProgramCache]: Analyzing trace with hash 366084285, now seen corresponding path program 4 times [2023-11-29 03:31:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939348224] [2023-11-29 03:31:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:30,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:30,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:30,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287450072] [2023-11-29 03:31:30,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:31:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:30,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:30,299 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:30,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:31:30,874 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:31:30,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:31:30,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-29 03:31:30,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 03:31:33,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:33,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:33,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939348224] [2023-11-29 03:31:33,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:33,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287450072] [2023-11-29 03:31:33,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287450072] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:31:33,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:31:33,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:31:33,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668427731] [2023-11-29 03:31:33,292 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:33,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:31:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:33,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:31:33,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:31:33,293 INFO L87 Difference]: Start difference. First operand 126 states and 132 transitions. Second operand has 17 states, 16 states have (on average 6.3125) internal successors, (101), 17 states have internal predecessors, (101), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:31:38,081 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 03:31:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:38,339 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2023-11-29 03:31:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:31:38,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 17 states have internal predecessors, (101), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 124 [2023-11-29 03:31:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:38,341 INFO L225 Difference]: With dead ends: 150 [2023-11-29 03:31:38,341 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 03:31:38,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:31:38,342 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 115 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:38,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 193 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 03:31:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 03:31:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2023-11-29 03:31:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 130 states have (on average 1.0384615384615385) internal successors, (135), 133 states have internal predecessors, (135), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:31:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2023-11-29 03:31:38,361 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 124 [2023-11-29 03:31:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:38,361 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2023-11-29 03:31:38,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 17 states have internal predecessors, (101), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:31:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-29 03:31:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 03:31:38,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:38,362 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:38,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:31:38,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:31:38,563 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:38,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:38,564 INFO L85 PathProgramCache]: Analyzing trace with hash -177473073, now seen corresponding path program 2 times [2023-11-29 03:31:38,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:38,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912320286] [2023-11-29 03:31:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:38,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:38,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:38,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551636039] [2023-11-29 03:31:38,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:31:38,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:38,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:38,575 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:38,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:31:38,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:31:38,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:31:38,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:31:38,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-29 03:31:38,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-29 03:31:38,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912320286] [2023-11-29 03:31:38,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551636039] [2023-11-29 03:31:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551636039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:38,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:31:38,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:31:38,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930770691] [2023-11-29 03:31:38,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:38,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:31:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:31:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:31:38,952 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:31:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:39,004 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2023-11-29 03:31:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:31:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 140 [2023-11-29 03:31:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:39,006 INFO L225 Difference]: With dead ends: 145 [2023-11-29 03:31:39,006 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 03:31:39,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:31:39,007 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 39 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:39,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 102 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:31:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 03:31:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-29 03:31:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 130 states have (on average 1.023076923076923) internal successors, (133), 132 states have internal predecessors, (133), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:31:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2023-11-29 03:31:39,024 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 140 [2023-11-29 03:31:39,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:39,025 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2023-11-29 03:31:39,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 03:31:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-29 03:31:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 03:31:39,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:39,026 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:39,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:31:39,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:31:39,226 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:39,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1097863605, now seen corresponding path program 2 times [2023-11-29 03:31:39,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:39,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745901203] [2023-11-29 03:31:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:39,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:39,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040424299] [2023-11-29 03:31:39,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:31:39,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:39,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:39,241 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:39,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:31:39,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:31:39,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:31:39,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:31:39,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:31:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 03:31:40,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:31:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 03:31:41,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:31:41,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745901203] [2023-11-29 03:31:41,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:31:41,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040424299] [2023-11-29 03:31:41,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040424299] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:31:41,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:31:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 03:31:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818857585] [2023-11-29 03:31:41,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:31:41,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:31:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:31:41,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:31:41,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:31:41,409 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand has 17 states, 16 states have (on average 13.875) internal successors, (222), 17 states have internal predecessors, (222), 13 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 12 states have call predecessors, (16), 13 states have call successors, (16) [2023-11-29 03:31:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:31:56,484 INFO L93 Difference]: Finished difference Result 262 states and 279 transitions. [2023-11-29 03:31:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:31:56,485 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.875) internal successors, (222), 17 states have internal predecessors, (222), 13 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 12 states have call predecessors, (16), 13 states have call successors, (16) Word has length 146 [2023-11-29 03:31:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:31:56,487 INFO L225 Difference]: With dead ends: 262 [2023-11-29 03:31:56,487 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 03:31:56,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:31:56,488 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 166 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:31:56,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 314 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-11-29 03:31:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 03:31:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 251. [2023-11-29 03:31:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 232 states have (on average 1.0560344827586208) internal successors, (245), 234 states have internal predecessors, (245), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:31:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2023-11-29 03:31:56,528 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 146 [2023-11-29 03:31:56,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:31:56,528 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2023-11-29 03:31:56,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.875) internal successors, (222), 17 states have internal predecessors, (222), 13 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 12 states have call predecessors, (16), 13 states have call successors, (16) [2023-11-29 03:31:56,529 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2023-11-29 03:31:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 03:31:56,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:31:56,530 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:56,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:31:56,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:56,731 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:31:56,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:31:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 278748224, now seen corresponding path program 5 times [2023-11-29 03:31:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:31:56,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533808643] [2023-11-29 03:31:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:31:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:31:56,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:31:56,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466331512] [2023-11-29 03:31:56,745 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:31:56,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:31:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:31:56,746 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:31:56,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:31:56,876 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 03:31:56,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unknown [2023-11-29 03:31:56,878 WARN L124 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2023-11-29 03:31:56,878 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-29 03:31:56,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-29 03:31:56,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-29 03:31:56,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-29 03:31:56,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-29 03:31:56,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-29 03:31:56,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-29 03:31:56,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-29 03:31:56,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-29 03:31:56,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-29 03:31:56,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-29 03:31:56,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-29 03:31:56,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-29 03:31:56,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-29 03:31:56,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-29 03:31:56,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-29 03:31:56,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-29 03:31:56,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-29 03:31:56,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-29 03:31:56,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-29 03:31:56,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-29 03:31:56,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-29 03:31:56,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-29 03:31:56,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-29 03:31:56,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-29 03:31:56,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-29 03:31:56,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-29 03:31:56,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-29 03:31:56,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-29 03:31:56,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-29 03:31:56,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-29 03:31:56,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:31:57,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 03:31:57,107 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:31:57,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:31:57,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:31:57 BoogieIcfgContainer [2023-11-29 03:31:57,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:31:57,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:31:57,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:31:57,133 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:31:57,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:24:51" (3/4) ... [2023-11-29 03:31:57,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:31:57,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:31:57,138 INFO L158 Benchmark]: Toolchain (without parser) took 426046.98ms. Allocated memory was 167.8MB in the beginning and 205.5MB in the end (delta: 37.7MB). Free memory was 130.4MB in the beginning and 60.2MB in the end (delta: 70.2MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,138 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:31:57,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.10ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 133.1MB in the end (delta: -2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.97ms. Allocated memory is still 167.8MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,139 INFO L158 Benchmark]: Boogie Preprocessor took 43.29ms. Allocated memory is still 167.8MB. Free memory was 131.1MB in the beginning and 129.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,139 INFO L158 Benchmark]: RCFGBuilder took 468.83ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 112.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,139 INFO L158 Benchmark]: TraceAbstraction took 425143.20ms. Allocated memory was 167.8MB in the beginning and 205.5MB in the end (delta: 37.7MB). Free memory was 112.2MB in the beginning and 60.2MB in the end (delta: 52.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2023-11-29 03:31:57,140 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 205.5MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:31:57,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.10ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 133.1MB in the end (delta: -2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.97ms. Allocated memory is still 167.8MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.29ms. Allocated memory is still 167.8MB. Free memory was 131.1MB in the beginning and 129.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.83ms. Allocated memory is still 167.8MB. Free memory was 129.5MB in the beginning and 112.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 425143.20ms. Allocated memory was 167.8MB in the beginning and 205.5MB in the end (delta: 37.7MB). Free memory was 112.2MB in the beginning and 60.2MB in the end (delta: 52.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 205.5MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L22] int z, a, k; [L23] long long x, y, c, az; [L24] z = __VERIFIER_nondet_int() [L25] CALL assume_abort_if_not(z>=0 && z<=50) [L12] COND FALSE !(!cond) [L25] RET assume_abort_if_not(z>=0 && z<=50) [L26] a = __VERIFIER_nondet_int() [L27] CALL assume_abort_if_not(a>=0 && a<=50) [L12] COND FALSE !(!cond) [L27] RET assume_abort_if_not(a>=0 && a<=50) [L28] k = __VERIFIER_nondet_int() [L29] CALL assume_abort_if_not(k>=0 && k<=50) [L12] COND FALSE !(!cond) [L29] RET assume_abort_if_not(k>=0 && k<=50) [L31] x = a [L32] y = 1 [L33] c = 1 [L34] EXPR (long long) a * z [L34] az = (long long) a * z [L36] COND TRUE 1 [L37] EXPR z*x [L37] EXPR z*x - x [L37] EXPR z*x - x + a [L37] EXPR az*y [L37] EXPR z*x - x + a - az*y [L37] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) [L15] COND FALSE !(!(cond)) [L37] RET __VERIFIER_assert(z*x - x + a - az*y == 0) [L39] COND FALSE !(!(c < k)) [L42] EXPR c + 1 [L42] c = c + 1 [L43] EXPR x * z [L43] EXPR x * z + a [L43] x = x * z + a [L44] EXPR y * z [L44] y = y * z [L36] COND TRUE 1 [L37] EXPR z*x [L37] EXPR z*x - x [L37] EXPR z*x - x + a [L37] EXPR az*y [L37] EXPR z*x - x + a - az*y [L37] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) [L15] COND FALSE !(!(cond)) [L37] RET __VERIFIER_assert(z*x - x + a - az*y == 0) [L39] COND FALSE !(!(c < k)) [L42] EXPR c + 1 [L42] c = c + 1 [L43] EXPR x * z [L43] EXPR x * z + a [L43] x = x * z + a [L44] EXPR y * z [L44] y = y * z [L36] COND TRUE 1 [L37] EXPR z*x [L37] EXPR z*x - x [L37] EXPR z*x - x + a [L37] EXPR az*y [L37] EXPR z*x - x + a - az*y [L37] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) [L15] COND FALSE !(!(cond)) [L37] RET __VERIFIER_assert(z*x - x + a - az*y == 0) [L39] COND FALSE !(!(c < k)) [L42] EXPR c + 1 [L42] c = c + 1 [L43] EXPR x * z [L43] EXPR x * z + a [L43] x = x * z + a [L44] EXPR y * z [L44] y = y * z [L36] COND TRUE 1 [L37] EXPR z*x [L37] EXPR z*x - x [L37] EXPR z*x - x + a [L37] EXPR az*y [L37] EXPR z*x - x + a - az*y [L37] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) [L15] COND FALSE !(!(cond)) [L37] RET __VERIFIER_assert(z*x - x + a - az*y == 0) [L39] COND FALSE !(!(c < k)) [L42] EXPR c + 1 [L42] c = c + 1 [L43] EXPR x * z [L43] EXPR x * z + a [L43] x = x * z + a [L44] EXPR y * z [L44] y = y * z [L36] COND TRUE 1 [L37] EXPR z*x [L37] EXPR z*x - x [L37] EXPR z*x - x + a [L37] EXPR az*y [L37] EXPR z*x - x + a - az*y [L37] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) [L15] COND FALSE !(!(cond)) [L37] RET __VERIFIER_assert(z*x - x + a - az*y == 0) [L39] COND FALSE !(!(c < k)) [L42] EXPR c + 1 [L42] c = c + 1 [L43] EXPR x * z [L43] EXPR x * z + a [L43] x = x * z + a [L44] EXPR y * z [L44] y = y * z [L36] COND TRUE 1 [L37] z*x - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 425.1s, OverallIterations: 31, TraceHistogramMax: 6, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 220.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 mSolverCounterUnknown, 3111 SdHoareTripleChecker+Valid, 157.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3084 mSDsluCounter, 3784 SdHoareTripleChecker+Invalid, 156.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2784 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6513 IncrementalHoareTripleChecker+Invalid, 6689 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 1000 mSDtfsCounter, 6513 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2828 GetRequests, 2499 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 152.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=30, InterpolantAutomatonStates: 249, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 30 MinimizatonAttempts, 223 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 11.1s SatisfiabilityAnalysisTime, 185.7s InterpolantComputationTime, 2033 NumberOfCodeBlocks, 1977 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 2462 ConstructedInterpolants, 272 QuantifiedInterpolants, 27275 SizeOfPredicates, 79 NumberOfNonLiveVariables, 3517 ConjunctsInSsa, 405 ConjunctsInUnsatCore, 37 InterpolantComputations, 9 PerfectInterpolantSequences, 1134/2331 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 03:31:57,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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 ca0a35d4b53e887915aee77ad0870e3a785e5005b2722a373bb8b33ec26ecb04 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:31:59,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:31:59,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-29 03:31:59,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:31:59,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:31:59,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:31:59,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:31:59,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:31:59,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:31:59,524 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:31:59,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:31:59,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:31:59,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:31:59,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:31:59,528 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:31:59,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:31:59,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:31:59,530 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:31:59,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:31:59,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:31:59,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:31:59,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:31:59,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:31:59,534 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:31:59,535 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:31:59,536 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:31:59,536 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:31:59,536 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:31:59,537 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:31:59,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:31:59,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:31:59,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:31:59,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:31:59,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:31:59,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:31:59,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:31:59,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:31:59,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:31:59,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:31:59,541 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:31:59,542 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:31:59,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:31:59,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:31:59,542 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:31:59,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:31:59,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:31:59,543 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:31:59,544 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_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a35d4b53e887915aee77ad0870e3a785e5005b2722a373bb8b33ec26ecb04 [2023-11-29 03:31:59,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:31:59,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:31:59,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:31:59,941 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:31:59,942 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:31:59,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-11-29 03:32:02,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:32:03,136 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:32:03,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound50.c [2023-11-29 03:32:03,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/7a8df2f2f/cc7e2d8c656c461184cd171e6cdaba74/FLAG15fcdde1d [2023-11-29 03:32:03,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/data/7a8df2f2f/cc7e2d8c656c461184cd171e6cdaba74 [2023-11-29 03:32:03,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:32:03,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:32:03,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:32:03,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:32:03,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:32:03,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595d012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03, skipping insertion in model container [2023-11-29 03:32:03,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:32:03,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:32:03,446 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:32:03,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:32:03,494 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:32:03,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03 WrapperNode [2023-11-29 03:32:03,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:32:03,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:32:03,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:32:03,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:32:03,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,547 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-29 03:32:03,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:32:03,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:32:03,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:32:03,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:32:03,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,585 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 03:32:03,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:32:03,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:32:03,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:32:03,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:32:03,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (1/1) ... [2023-11-29 03:32:03,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:32:03,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:32:03,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:32:03,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:32:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:32:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:32:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:32:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:32:03,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:32:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:32:03,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:32:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:32:03,784 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:32:03,787 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:32:28,089 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:32:28,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:32:28,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:32:28,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:32:28 BoogieIcfgContainer [2023-11-29 03:32:28,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:32:28,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:32:28,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:32:28,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:32:28,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:32:03" (1/3) ... [2023-11-29 03:32:28,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b4617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:32:28, skipping insertion in model container [2023-11-29 03:32:28,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:32:03" (2/3) ... [2023-11-29 03:32:28,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b4617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:32:28, skipping insertion in model container [2023-11-29 03:32:28,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:32:28" (3/3) ... [2023-11-29 03:32:28,132 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound50.c [2023-11-29 03:32:28,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:32:28,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:32:28,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:32:28,211 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;@586dffd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:32:28,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 03:32:28,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 43 states have (on average 1.813953488372093) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:32:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:32:28,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:32:28,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:32:28,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:32:28,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:32:28,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1971585362, now seen corresponding path program 1 times [2023-11-29 03:32:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:32:28,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329958041] [2023-11-29 03:32:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:32:28,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:32:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:32:28,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:32:28,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 03:32:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:32:28,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:32:28,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:32:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:32:28,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:32:37,098 WARN L876 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |c_ULTIMATE.start_main_~a~0#1|)) ((_ sign_extend 63) ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|)))) is different from true [2023-11-29 03:33:10,266 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:33:22,370 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:33:30,522 WARN L876 $PredicateComparison]: unable to prove that (or (and (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvsle |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv50 32)))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvsge |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv0 32)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-11-29 03:33:46,870 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:33:58,974 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:34:19,367 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:34:31,466 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:34:39,629 WARN L876 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (and (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvsle |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv50 32)))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvsge |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv0 32)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_4|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-11-29 03:34:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 3 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:34:39,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:34:39,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329958041] [2023-11-29 03:34:39,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329958041] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:34:39,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:34:39,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-11-29 03:34:39,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17246549] [2023-11-29 03:34:39,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:34:39,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:34:39,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:34:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:34:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=23, Unknown=3, NotChecked=30, Total=72 [2023-11-29 03:34:39,726 INFO L87 Difference]: Start difference. First operand has 81 states, 43 states have (on average 1.813953488372093) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:34:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:49,357 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2023-11-29 03:34:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:34:49,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 20 [2023-11-29 03:34:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:49,367 INFO L225 Difference]: With dead ends: 154 [2023-11-29 03:34:49,367 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 03:34:49,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=20, Invalid=31, Unknown=3, NotChecked=36, Total=90 [2023-11-29 03:34:49,372 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 116 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 227 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:49,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 84 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 160 Invalid, 0 Unknown, 227 Unchecked, 8.2s Time] [2023-11-29 03:34:49,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 03:34:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 03:34:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 65 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:34:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2023-11-29 03:34:49,404 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 20 [2023-11-29 03:34:49,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:49,405 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2023-11-29 03:34:49,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:34:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2023-11-29 03:34:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 03:34:49,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:49,407 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:34:49,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:34:49,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:34:49,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:34:49,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1821788538, now seen corresponding path program 1 times [2023-11-29 03:34:49,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:34:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332103355] [2023-11-29 03:34:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:49,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:34:49,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:34:49,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:34:49,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 03:34:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:49,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:34:49,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:34:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:34:50,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:35:05,168 WARN L876 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |c_ULTIMATE.start_main_~a~0#1|)) ((_ sign_extend 63) ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|)))) is different from true [2023-11-29 03:35:30,112 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:35:50,676 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:35:54,714 WARN L876 $PredicateComparison]: unable to prove that (or (and (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsge |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv0 32)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))) (bvsle |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv50 32))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-11-29 03:36:06,833 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:36:27,220 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:36:39,345 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:36:59,799 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:37:03,822 WARN L854 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (and (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsge |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv0 32)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))) (bvsle |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv50 32))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from false [2023-11-29 03:37:07,859 WARN L876 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (and (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsge |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv0 32)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))))) (forall ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ BitVec 32))) (or (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_9|)) ((_ sign_extend 63) ((_ sign_extend 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6|)))) (bvsle |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_6| (_ bv50 32))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-11-29 03:37:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 3 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:37:07,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:37:07,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332103355] [2023-11-29 03:37:07,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332103355] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:37:07,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:37:07,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-29 03:37:07,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114756684] [2023-11-29 03:37:07,912 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:37:07,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:37:07,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:37:07,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:37:07,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=42, Unknown=4, NotChecked=42, Total=110 [2023-11-29 03:37:07,916 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:37:26,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:37:30,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:37:31,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:37:43,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:37:47,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:37:51,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:38:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:01,395 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2023-11-29 03:38:01,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:38:01,418 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2023-11-29 03:38:01,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:01,420 INFO L225 Difference]: With dead ends: 127 [2023-11-29 03:38:01,420 INFO L226 Difference]: Without dead ends: 114 [2023-11-29 03:38:01,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=38, Invalid=80, Unknown=4, NotChecked=60, Total=182 [2023-11-29 03:38:01,422 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 219 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 21 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 345 IncrementalHoareTripleChecker+Unchecked, 48.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:01,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 112 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 194 Invalid, 4 Unknown, 345 Unchecked, 48.0s Time] [2023-11-29 03:38:01,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-29 03:38:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 99. [2023-11-29 03:38:01,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 70 states have (on average 1.4285714285714286) internal successors, (100), 91 states have internal predecessors, (100), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:38:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2023-11-29 03:38:01,434 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 23 [2023-11-29 03:38:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:01,434 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2023-11-29 03:38:01,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 03:38:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2023-11-29 03:38:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:38:01,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:01,436 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:38:01,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 03:38:01,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:38:01,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:38:01,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:01,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1640843936, now seen corresponding path program 1 times [2023-11-29 03:38:01,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:38:01,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869707638] [2023-11-29 03:38:01,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:01,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:38:01,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:38:01,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:38:01,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 03:38:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:02,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:38:02,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:38:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:38:05,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:38:30,391 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:38:34,429 WARN L854 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) |c_ULTIMATE.start_main_~y~0#1|) ((_ sign_extend 63) (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~a~0#1|) ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|))))) is different from false [2023-11-29 03:38:42,141 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:38:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:38:42,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:38:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869707638] [2023-11-29 03:38:42,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869707638] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:38:42,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:38:42,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-29 03:38:42,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231732059] [2023-11-29 03:38:42,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:42,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:38:42,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:38:42,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:38:42,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=53, Unknown=1, NotChecked=14, Total=90 [2023-11-29 03:38:42,313 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:38:46,833 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 63) |c_ULTIMATE.start_main_~y~0#1|))) (and (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul ((_ sign_extend 63) |c_ULTIMATE.start_main_~az~0#1|) .cse0)) (bvsle (_ bv170141183460469231722463931679029329920 127) (bvmul .cse0 ((_ sign_extend 63) (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~a~0#1|) ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|))))))) is different from false [2023-11-29 03:38:51,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:38:55,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:38:57,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:38:58,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:38:59,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:01,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:06,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:08,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:12,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:13,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:15,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:39:16,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:16,580 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2023-11-29 03:39:16,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:39:16,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-29 03:39:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:16,606 INFO L225 Difference]: With dead ends: 100 [2023-11-29 03:39:16,606 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 03:39:16,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=24, Invalid=54, Unknown=2, NotChecked=30, Total=110 [2023-11-29 03:39:16,608 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 37 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:16,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 93 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 2 Unknown, 65 Unchecked, 27.4s Time] [2023-11-29 03:39:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 03:39:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-29 03:39:16,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.4) internal successors, (98), 90 states have internal predecessors, (98), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:39:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2023-11-29 03:39:16,622 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 29 [2023-11-29 03:39:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:16,623 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2023-11-29 03:39:16,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 03:39:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2023-11-29 03:39:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:39:16,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:16,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:39:16,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 03:39:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:39:16,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:39:16,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash -673445469, now seen corresponding path program 1 times [2023-11-29 03:39:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:39:16,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395020724] [2023-11-29 03:39:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:16,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:39:16,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:39:16,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:39:16,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e721b93-441f-4301-9e62-fc7b6c6cf5f9/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 03:39:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:17,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:39:17,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:39:21,508 INFO L327 TraceCheckSpWp]: Computing backward predicates...