./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.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_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/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_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/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_35fcaef3-0203-4fe4-bf35-dc7b3e148462/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 0bd5c2784fe43830be309c722c3fa9fc4d3ef116c17a8343acb2a2dfbcf830c0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:43:51,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:43:51,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 20:43:51,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:43:51,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:43:51,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:43:51,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:43:51,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:43:51,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:43:51,578 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:43:51,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:43:51,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:43:51,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:43:51,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:43:51,581 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:43:51,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:43:51,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:43:51,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:43:51,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:43:51,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:43:51,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:43:51,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:43:51,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:43:51,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:43:51,586 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:43:51,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:43:51,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:43:51,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:43:51,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:43:51,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:43:51,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:43:51,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:43:51,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:43:51,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:43:51,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:43:51,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:43:51,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:43:51,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:43:51,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:43:51,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:43:51,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:43:51,592 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:43:51,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:43:51,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:43:51,592 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_35fcaef3-0203-4fe4-bf35-dc7b3e148462/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bd5c2784fe43830be309c722c3fa9fc4d3ef116c17a8343acb2a2dfbcf830c0 [2023-11-28 20:43:51,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:43:51,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:43:51,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:43:51,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:43:51,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:43:51,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c [2023-11-28 20:43:55,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:43:55,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:43:55,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c [2023-11-28 20:43:55,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/data/93cf773bd/64a48d62a42740918bd4f21e1abc31cf/FLAG12e1ee510 [2023-11-28 20:43:55,334 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/data/93cf773bd/64a48d62a42740918bd4f21e1abc31cf [2023-11-28 20:43:55,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:43:55,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:43:55,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:43:55,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:43:55,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:43:55,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b4b901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55, skipping insertion in model container [2023-11-28 20:43:55,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:43:55,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:43:55,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:43:55,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:43:55,619 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:43:55,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55 WrapperNode [2023-11-28 20:43:55,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:43:55,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:43:55,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:43:55,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:43:55,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,664 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-28 20:43:55,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:43:55,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:43:55,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:43:55,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:43:55,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,701 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]. [2023-11-28 20:43:55,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:43:55,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:43:55,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:43:55,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:43:55,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (1/1) ... [2023-11-28 20:43:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:43:55,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:55,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:43:55,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:43:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:43:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:43:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:43:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:43:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:43:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:43:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:43:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:43:55,855 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:43:55,858 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:43:56,096 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:43:56,125 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:43:56,125 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:43:56,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:56 BoogieIcfgContainer [2023-11-28 20:43:56,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:43:56,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:43:56,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:43:56,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:43:56,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:55" (1/3) ... [2023-11-28 20:43:56,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ff58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:56, skipping insertion in model container [2023-11-28 20:43:56,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:55" (2/3) ... [2023-11-28 20:43:56,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ff58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:56, skipping insertion in model container [2023-11-28 20:43:56,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:56" (3/3) ... [2023-11-28 20:43:56,138 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound100.c [2023-11-28 20:43:56,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:43:56,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-28 20:43:56,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:43:56,220 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;@255d5037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:43:56,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-28 20:43:56,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 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) [2023-11-28 20:43:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-28 20:43:56,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:56,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:56,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:56,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1616721719, now seen corresponding path program 1 times [2023-11-28 20:43:56,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:56,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6354342] [2023-11-28 20:43:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:56,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6354342] [2023-11-28 20:43:56,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-28 20:43:56,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549492982] [2023-11-28 20:43:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:56,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:56,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:56,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:56,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:43:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:56,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:43:56,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:56,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 20:43:56,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:43:56,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549492982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:56,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:56,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:43:56,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036316209] [2023-11-28 20:43:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:56,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:43:56,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:56,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:43:56,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:43:56,571 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:56,606 INFO L93 Difference]: Finished difference Result 126 states and 143 transitions. [2023-11-28 20:43:56,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:43:56,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-28 20:43:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:56,617 INFO L225 Difference]: With dead ends: 126 [2023-11-28 20:43:56,617 INFO L226 Difference]: Without dead ends: 61 [2023-11-28 20:43:56,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:43:56,625 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:56,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:43:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-28 20:43:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-28 20:43:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-28 20:43:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2023-11-28 20:43:56,673 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 14 [2023-11-28 20:43:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2023-11-28 20:43:56,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2023-11-28 20:43:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-28 20:43:56,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:56,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:56,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:43:56,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 20:43:56,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:56,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1919924458, now seen corresponding path program 1 times [2023-11-28 20:43:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919736390] [2023-11-28 20:43:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:43:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 20:43:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:43:57,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:57,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919736390] [2023-11-28 20:43:57,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919736390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:57,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:57,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:43:57,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366743651] [2023-11-28 20:43:57,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:57,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:43:57,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:57,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:43:57,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:43:57,051 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:57,124 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2023-11-28 20:43:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:43:57,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-28 20:43:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:57,127 INFO L225 Difference]: With dead ends: 75 [2023-11-28 20:43:57,127 INFO L226 Difference]: Without dead ends: 65 [2023-11-28 20:43:57,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:43:57,130 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:57,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 167 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:43:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-28 20:43:57,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-28 20:43:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.631578947368421) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-28 20:43:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2023-11-28 20:43:57,143 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 14 [2023-11-28 20:43:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:57,144 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2023-11-28 20:43:57,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2023-11-28 20:43:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-28 20:43:57,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:57,146 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:57,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:43:57,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:57,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash -390003592, now seen corresponding path program 1 times [2023-11-28 20:43:57,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:57,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242363413] [2023-11-28 20:43:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:57,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:43:57,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066622172] [2023-11-28 20:43:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:57,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:57,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:43:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:57,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:43:57,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:57,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:43:57,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:43:57,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:57,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242363413] [2023-11-28 20:43:57,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:43:57,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066622172] [2023-11-28 20:43:57,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066622172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:57,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:57,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:43:57,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193393499] [2023-11-28 20:43:57,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:57,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:43:57,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:57,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:43:57,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:43:57,440 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:57,612 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2023-11-28 20:43:57,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:43:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-28 20:43:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:57,615 INFO L225 Difference]: With dead ends: 110 [2023-11-28 20:43:57,615 INFO L226 Difference]: Without dead ends: 104 [2023-11-28 20:43:57,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:43:57,618 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 174 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:57,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 136 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:43:57,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-28 20:43:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2023-11-28 20:43:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.65) internal successors, (99), 81 states have internal predecessors, (99), 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) [2023-11-28 20:43:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2023-11-28 20:43:57,635 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 17 [2023-11-28 20:43:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:57,635 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2023-11-28 20:43:57,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2023-11-28 20:43:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-28 20:43:57,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:57,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:57,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 20:43:57,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:57,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:57,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1131295462, now seen corresponding path program 1 times [2023-11-28 20:43:57,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:57,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075466601] [2023-11-28 20:43:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:57,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:57,852 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:43:57,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840072352] [2023-11-28 20:43:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:57,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:57,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:57,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:43:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:57,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:43:57,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:43:57,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:43:57,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:57,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075466601] [2023-11-28 20:43:57,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:43:57,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840072352] [2023-11-28 20:43:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840072352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:57,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:43:57,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404394354] [2023-11-28 20:43:57,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:57,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:43:57,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:57,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:43:57,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:43:57,950 INFO L87 Difference]: Start difference. First operand 88 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:58,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:58,018 INFO L93 Difference]: Finished difference Result 98 states and 118 transitions. [2023-11-28 20:43:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:43:58,019 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-28 20:43:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:58,020 INFO L225 Difference]: With dead ends: 98 [2023-11-28 20:43:58,021 INFO L226 Difference]: Without dead ends: 92 [2023-11-28 20:43:58,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:43:58,023 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:58,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 65 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:43:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-28 20:43:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2023-11-28 20:43:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.5303030303030303) internal successors, (101), 83 states have internal predecessors, (101), 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) [2023-11-28 20:43:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 109 transitions. [2023-11-28 20:43:58,040 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 109 transitions. Word has length 19 [2023-11-28 20:43:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:58,040 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 109 transitions. [2023-11-28 20:43:58,041 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2023-11-28 20:43:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-28 20:43:58,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:58,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:58,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:43:58,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:58,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:58,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash -710420897, now seen corresponding path program 1 times [2023-11-28 20:43:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:58,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439888436] [2023-11-28 20:43:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:58,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:43:58,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203626730] [2023-11-28 20:43:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:58,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:58,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:58,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:58,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:43:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:58,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:43:58,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:43:58,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:43:58,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:58,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439888436] [2023-11-28 20:43:58,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:43:58,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203626730] [2023-11-28 20:43:58,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203626730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:43:58,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:43:58,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:43:58,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827815728] [2023-11-28 20:43:58,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:43:58,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:43:58,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:58,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:43:58,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:43:58,352 INFO L87 Difference]: Start difference. First operand 90 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:58,436 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2023-11-28 20:43:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:43:58,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-28 20:43:58,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:58,439 INFO L225 Difference]: With dead ends: 139 [2023-11-28 20:43:58,439 INFO L226 Difference]: Without dead ends: 128 [2023-11-28 20:43:58,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:43:58,441 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 54 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:58,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 86 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:43:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-28 20:43:58,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2023-11-28 20:43:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 90 states have (on average 1.4666666666666666) internal successors, (132), 107 states have internal predecessors, (132), 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) [2023-11-28 20:43:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 144 transitions. [2023-11-28 20:43:58,462 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 144 transitions. Word has length 20 [2023-11-28 20:43:58,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:58,463 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 144 transitions. [2023-11-28 20:43:58,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:43:58,463 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 144 transitions. [2023-11-28 20:43:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 20:43:58,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:58,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:58,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:43:58,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:58,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:58,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:58,668 INFO L85 PathProgramCache]: Analyzing trace with hash -548211268, now seen corresponding path program 1 times [2023-11-28 20:43:58,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:58,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048903179] [2023-11-28 20:43:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:58,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:58,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:43:58,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233794362] [2023-11-28 20:43:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:58,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:58,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:58,682 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:58,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:43:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:58,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:43:58,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:43:58,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:43:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:43:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:43:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048903179] [2023-11-28 20:43:59,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:43:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233794362] [2023-11-28 20:43:59,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233794362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:43:59,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:43:59,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-28 20:43:59,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703502625] [2023-11-28 20:43:59,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:43:59,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:43:59,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:43:59,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:43:59,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:43:59,141 INFO L87 Difference]: Start difference. First operand 116 states and 144 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:59,473 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2023-11-28 20:43:59,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:43:59,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-28 20:43:59,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:59,476 INFO L225 Difference]: With dead ends: 136 [2023-11-28 20:43:59,476 INFO L226 Difference]: Without dead ends: 133 [2023-11-28 20:43:59,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:43:59,478 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 143 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:59,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 165 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:43:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-28 20:43:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 120. [2023-11-28 20:43:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.4361702127659575) internal successors, (135), 111 states have internal predecessors, (135), 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) [2023-11-28 20:43:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2023-11-28 20:43:59,498 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 21 [2023-11-28 20:43:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:59,499 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2023-11-28 20:43:59,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:59,500 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2023-11-28 20:43:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-28 20:43:59,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:59,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:59,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 20:43:59,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:43:59,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:43:59,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash 185319937, now seen corresponding path program 1 times [2023-11-28 20:43:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:43:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099142013] [2023-11-28 20:43:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:43:59,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:43:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794818641] [2023-11-28 20:43:59,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:59,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:43:59,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:43:59,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:43:59,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:43:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:59,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:43:59,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:44:00,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:00,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:00,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099142013] [2023-11-28 20:44:00,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:00,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794818641] [2023-11-28 20:44:00,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794818641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:00,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:00,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:44:00,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428545401] [2023-11-28 20:44:00,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:00,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:44:00,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:00,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:44:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:44:00,098 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:44:00,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:00,310 INFO L93 Difference]: Finished difference Result 121 states and 147 transitions. [2023-11-28 20:44:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:44:00,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-28 20:44:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:00,313 INFO L225 Difference]: With dead ends: 121 [2023-11-28 20:44:00,313 INFO L226 Difference]: Without dead ends: 120 [2023-11-28 20:44:00,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:00,315 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 142 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:00,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 102 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:44:00,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-28 20:44:00,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-28 20:44:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.425531914893617) internal successors, (134), 111 states have internal predecessors, (134), 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) [2023-11-28 20:44:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2023-11-28 20:44:00,332 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 22 [2023-11-28 20:44:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:00,333 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2023-11-28 20:44:00,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:44:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2023-11-28 20:44:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-28 20:44:00,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:00,335 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:44:00,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:44:00,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:00,540 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:00,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash -294711385, now seen corresponding path program 1 times [2023-11-28 20:44:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821429133] [2023-11-28 20:44:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:00,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:00,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:00,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138529937] [2023-11-28 20:44:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:00,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:00,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:00,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:00,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:44:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:00,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:44:00,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:00,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:00,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821429133] [2023-11-28 20:44:00,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138529937] [2023-11-28 20:44:00,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138529937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:00,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:00,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:44:00,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665476925] [2023-11-28 20:44:00,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:00,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:44:00,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:00,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:44:00,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:44:00,670 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:00,723 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2023-11-28 20:44:00,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:44:00,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-28 20:44:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:00,725 INFO L225 Difference]: With dead ends: 120 [2023-11-28 20:44:00,726 INFO L226 Difference]: Without dead ends: 118 [2023-11-28 20:44:00,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:44:00,727 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 70 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:00,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 64 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:44:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-28 20:44:00,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-28 20:44:00,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 109 states have internal predecessors, (131), 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) [2023-11-28 20:44:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2023-11-28 20:44:00,742 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 35 [2023-11-28 20:44:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:00,743 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2023-11-28 20:44:00,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2023-11-28 20:44:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-28 20:44:00,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:00,745 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:44:00,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:00,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:00,946 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:00,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:00,946 INFO L85 PathProgramCache]: Analyzing trace with hash 250201833, now seen corresponding path program 1 times [2023-11-28 20:44:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:00,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880750962] [2023-11-28 20:44:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:00,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:00,956 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203276376] [2023-11-28 20:44:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:00,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:00,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:00,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:44:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:01,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:44:01,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:01,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:01,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880750962] [2023-11-28 20:44:01,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203276376] [2023-11-28 20:44:01,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203276376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:01,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:01,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:44:01,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367670681] [2023-11-28 20:44:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:01,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:44:01,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:44:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:44:01,086 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:01,143 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2023-11-28 20:44:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:44:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-11-28 20:44:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:01,146 INFO L225 Difference]: With dead ends: 118 [2023-11-28 20:44:01,146 INFO L226 Difference]: Without dead ends: 117 [2023-11-28 20:44:01,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:01,147 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:01,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 104 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:44:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-28 20:44:01,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-28 20:44:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 108 states have internal predecessors, (128), 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) [2023-11-28 20:44:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2023-11-28 20:44:01,160 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 37 [2023-11-28 20:44:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:01,161 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2023-11-28 20:44:01,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2023-11-28 20:44:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-28 20:44:01,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:01,163 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:44:01,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:44:01,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:01,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:01,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:01,367 INFO L85 PathProgramCache]: Analyzing trace with hash -833677725, now seen corresponding path program 1 times [2023-11-28 20:44:01,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:01,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827491343] [2023-11-28 20:44:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:01,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:01,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:01,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186967232] [2023-11-28 20:44:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:01,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:01,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:01,380 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:01,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:44:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:01,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:44:01,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:01,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:01,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:01,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827491343] [2023-11-28 20:44:01,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:01,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186967232] [2023-11-28 20:44:01,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186967232] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:01,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:01,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-28 20:44:01,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737149711] [2023-11-28 20:44:01,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:01,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:44:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:44:01,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:01,615 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-28 20:44:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:01,764 INFO L93 Difference]: Finished difference Result 293 states and 346 transitions. [2023-11-28 20:44:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:44:01,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 38 [2023-11-28 20:44:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:01,768 INFO L225 Difference]: With dead ends: 293 [2023-11-28 20:44:01,768 INFO L226 Difference]: Without dead ends: 283 [2023-11-28 20:44:01,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:44:01,770 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 98 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:01,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 346 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:01,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-28 20:44:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 245. [2023-11-28 20:44:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 214 states have (on average 1.3691588785046729) internal successors, (293), 228 states have internal predecessors, (293), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:44:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 315 transitions. [2023-11-28 20:44:01,796 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 315 transitions. Word has length 38 [2023-11-28 20:44:01,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:01,797 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 315 transitions. [2023-11-28 20:44:01,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-28 20:44:01,797 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 315 transitions. [2023-11-28 20:44:01,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 20:44:01,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:01,799 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:01,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:44:02,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:02,005 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:02,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:02,006 INFO L85 PathProgramCache]: Analyzing trace with hash -260192497, now seen corresponding path program 1 times [2023-11-28 20:44:02,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:02,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155935317] [2023-11-28 20:44:02,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:02,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975086179] [2023-11-28 20:44:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:02,018 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:02,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:44:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:02,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:44:02,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:02,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155935317] [2023-11-28 20:44:02,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:02,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975086179] [2023-11-28 20:44:02,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975086179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:02,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:02,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 20:44:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737217986] [2023-11-28 20:44:02,428 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:44:02,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:44:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:02,430 INFO L87 Difference]: Start difference. First operand 245 states and 315 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:02,569 INFO L93 Difference]: Finished difference Result 255 states and 317 transitions. [2023-11-28 20:44:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:44:02,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-28 20:44:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:02,572 INFO L225 Difference]: With dead ends: 255 [2023-11-28 20:44:02,572 INFO L226 Difference]: Without dead ends: 252 [2023-11-28 20:44:02,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:44:02,574 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:02,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 89 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-28 20:44:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 242. [2023-11-28 20:44:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 214 states have (on average 1.3364485981308412) internal successors, (286), 225 states have internal predecessors, (286), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:44:02,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 308 transitions. [2023-11-28 20:44:02,599 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 308 transitions. Word has length 40 [2023-11-28 20:44:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:02,599 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 308 transitions. [2023-11-28 20:44:02,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 308 transitions. [2023-11-28 20:44:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 20:44:02,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:02,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:02,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:44:02,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:02,802 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:02,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:02,802 INFO L85 PathProgramCache]: Analyzing trace with hash 523967238, now seen corresponding path program 1 times [2023-11-28 20:44:02,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:02,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624119565] [2023-11-28 20:44:02,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:02,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:02,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:02,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [986236298] [2023-11-28 20:44:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:02,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:02,814 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:02,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:44:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:02,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:44:02,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:03,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:03,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:03,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624119565] [2023-11-28 20:44:03,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:03,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986236298] [2023-11-28 20:44:03,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986236298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:03,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:03,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 20:44:03,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575969076] [2023-11-28 20:44:03,195 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:03,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:44:03,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:44:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:03,197 INFO L87 Difference]: Start difference. First operand 242 states and 308 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:03,337 INFO L93 Difference]: Finished difference Result 341 states and 419 transitions. [2023-11-28 20:44:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:44:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-11-28 20:44:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:03,340 INFO L225 Difference]: With dead ends: 341 [2023-11-28 20:44:03,340 INFO L226 Difference]: Without dead ends: 336 [2023-11-28 20:44:03,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:03,342 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 133 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:03,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 109 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-28 20:44:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 313. [2023-11-28 20:44:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.3191489361702127) internal successors, (372), 293 states have internal predecessors, (372), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 400 transitions. [2023-11-28 20:44:03,369 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 400 transitions. Word has length 41 [2023-11-28 20:44:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:03,370 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 400 transitions. [2023-11-28 20:44:03,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 400 transitions. [2023-11-28 20:44:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 20:44:03,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:03,372 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:03,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 20:44:03,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-28 20:44:03,575 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:03,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash 23653362, now seen corresponding path program 1 times [2023-11-28 20:44:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:03,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196986671] [2023-11-28 20:44:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:03,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:03,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981371964] [2023-11-28 20:44:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:03,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:03,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:03,584 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:03,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 20:44:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:03,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:44:03,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:44:03,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:44:03,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:03,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196986671] [2023-11-28 20:44:03,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:03,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981371964] [2023-11-28 20:44:03,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981371964] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:03,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:03,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-11-28 20:44:03,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080941354] [2023-11-28 20:44:03,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:03,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 20:44:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 20:44:03,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:44:03,884 INFO L87 Difference]: Start difference. First operand 313 states and 400 transitions. Second operand has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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) [2023-11-28 20:44:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:04,193 INFO L93 Difference]: Finished difference Result 322 states and 407 transitions. [2023-11-28 20:44:04,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:44:04,194 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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 43 [2023-11-28 20:44:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:04,196 INFO L225 Difference]: With dead ends: 322 [2023-11-28 20:44:04,196 INFO L226 Difference]: Without dead ends: 316 [2023-11-28 20:44:04,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:44:04,198 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 139 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:04,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 160 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:44:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-28 20:44:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 313. [2023-11-28 20:44:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.297872340425532) internal successors, (366), 293 states have internal predecessors, (366), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 394 transitions. [2023-11-28 20:44:04,222 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 394 transitions. Word has length 43 [2023-11-28 20:44:04,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:04,223 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 394 transitions. [2023-11-28 20:44:04,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 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) [2023-11-28 20:44:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 394 transitions. [2023-11-28 20:44:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-28 20:44:04,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:04,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:04,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 20:44:04,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:04,427 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:04,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash 733254281, now seen corresponding path program 1 times [2023-11-28 20:44:04,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:04,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863413173] [2023-11-28 20:44:04,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:04,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:04,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:04,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499920705] [2023-11-28 20:44:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:04,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:04,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 20:44:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:04,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:44:04,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:04,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:04,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863413173] [2023-11-28 20:44:04,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499920705] [2023-11-28 20:44:04,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499920705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:04,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:04,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:44:04,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959350069] [2023-11-28 20:44:04,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:04,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:44:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:44:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:44:04,516 INFO L87 Difference]: Start difference. First operand 313 states and 394 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:04,594 INFO L93 Difference]: Finished difference Result 319 states and 396 transitions. [2023-11-28 20:44:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:44:04,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-11-28 20:44:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:04,597 INFO L225 Difference]: With dead ends: 319 [2023-11-28 20:44:04,597 INFO L226 Difference]: Without dead ends: 318 [2023-11-28 20:44:04,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:44:04,598 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:04,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 57 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:04,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-28 20:44:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2023-11-28 20:44:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.2765957446808511) internal successors, (360), 293 states have internal predecessors, (360), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 388 transitions. [2023-11-28 20:44:04,621 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 388 transitions. Word has length 44 [2023-11-28 20:44:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:04,621 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 388 transitions. [2023-11-28 20:44:04,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 388 transitions. [2023-11-28 20:44:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-28 20:44:04,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:04,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:04,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 20:44:04,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:04,823 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:04,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:04,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1596888275, now seen corresponding path program 1 times [2023-11-28 20:44:04,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:04,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840227376] [2023-11-28 20:44:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:04,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:04,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033617005] [2023-11-28 20:44:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:04,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:04,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:04,831 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:04,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 20:44:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:04,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:44:04,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:44:05,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:44:05,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:05,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840227376] [2023-11-28 20:44:05,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:05,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033617005] [2023-11-28 20:44:05,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033617005] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:05,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:05,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-11-28 20:44:05,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134881761] [2023-11-28 20:44:05,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:05,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:44:05,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:44:05,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:44:05,308 INFO L87 Difference]: Start difference. First operand 313 states and 388 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2023-11-28 20:44:05,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:05,520 INFO L93 Difference]: Finished difference Result 315 states and 389 transitions. [2023-11-28 20:44:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:44:05,521 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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 44 [2023-11-28 20:44:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:05,524 INFO L225 Difference]: With dead ends: 315 [2023-11-28 20:44:05,524 INFO L226 Difference]: Without dead ends: 312 [2023-11-28 20:44:05,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-28 20:44:05,526 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 141 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:05,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 106 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-28 20:44:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2023-11-28 20:44:05,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 282 states have (on average 1.2092198581560283) internal successors, (341), 290 states have internal predecessors, (341), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 369 transitions. [2023-11-28 20:44:05,554 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 369 transitions. Word has length 44 [2023-11-28 20:44:05,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:05,554 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 369 transitions. [2023-11-28 20:44:05,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2023-11-28 20:44:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 369 transitions. [2023-11-28 20:44:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 20:44:05,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:05,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:05,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 20:44:05,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-28 20:44:05,756 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:05,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1256046292, now seen corresponding path program 1 times [2023-11-28 20:44:05,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:05,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694489673] [2023-11-28 20:44:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:05,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:05,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727247734] [2023-11-28 20:44:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:05,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:05,768 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:05,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 20:44:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:05,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:44:05,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:05,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:05,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:05,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694489673] [2023-11-28 20:44:05,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:05,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727247734] [2023-11-28 20:44:05,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727247734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:05,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:05,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:44:05,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343949275] [2023-11-28 20:44:05,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:44:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:44:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:44:05,884 INFO L87 Difference]: Start difference. First operand 310 states and 369 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:05,959 INFO L93 Difference]: Finished difference Result 316 states and 371 transitions. [2023-11-28 20:44:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:44:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2023-11-28 20:44:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:05,962 INFO L225 Difference]: With dead ends: 316 [2023-11-28 20:44:05,962 INFO L226 Difference]: Without dead ends: 315 [2023-11-28 20:44:05,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:44:05,963 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:05,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-28 20:44:05,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 310. [2023-11-28 20:44:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 282 states have (on average 1.1879432624113475) internal successors, (335), 290 states have internal predecessors, (335), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 363 transitions. [2023-11-28 20:44:05,989 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 363 transitions. Word has length 45 [2023-11-28 20:44:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:05,989 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 363 transitions. [2023-11-28 20:44:05,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 363 transitions. [2023-11-28 20:44:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 20:44:05,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:05,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:05,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 20:44:06,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 20:44:06,191 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:06,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2036070966, now seen corresponding path program 1 times [2023-11-28 20:44:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002047796] [2023-11-28 20:44:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:06,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:06,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128812922] [2023-11-28 20:44:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:06,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:06,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:06,201 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 20:44:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:06,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:44:06,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:06,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:06,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002047796] [2023-11-28 20:44:06,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128812922] [2023-11-28 20:44:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128812922] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:06,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-28 20:44:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322089289] [2023-11-28 20:44:06,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:06,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 20:44:06,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:06,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 20:44:06,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:44:06,656 INFO L87 Difference]: Start difference. First operand 310 states and 363 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 20:44:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:07,261 INFO L93 Difference]: Finished difference Result 343 states and 398 transitions. [2023-11-28 20:44:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:44:07,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2023-11-28 20:44:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:07,264 INFO L225 Difference]: With dead ends: 343 [2023-11-28 20:44:07,264 INFO L226 Difference]: Without dead ends: 342 [2023-11-28 20:44:07,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:44:07,266 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 171 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:07,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 142 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 20:44:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-28 20:44:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 309. [2023-11-28 20:44:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 282 states have (on average 1.1702127659574468) internal successors, (330), 289 states have internal predecessors, (330), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-28 20:44:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 358 transitions. [2023-11-28 20:44:07,294 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 358 transitions. Word has length 45 [2023-11-28 20:44:07,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:07,294 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 358 transitions. [2023-11-28 20:44:07,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 20:44:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 358 transitions. [2023-11-28 20:44:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-28 20:44:07,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:07,295 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-28 20:44:07,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 20:44:07,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 20:44:07,496 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:07,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1391995044, now seen corresponding path program 1 times [2023-11-28 20:44:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663860714] [2023-11-28 20:44:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:07,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:07,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090390757] [2023-11-28 20:44:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:07,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:07,508 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 20:44:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:07,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:44:07,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:44:07,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:44:07,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:07,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663860714] [2023-11-28 20:44:07,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:07,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090390757] [2023-11-28 20:44:07,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090390757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:07,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:07,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-28 20:44:07,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564665572] [2023-11-28 20:44:07,665 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:07,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:44:07,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:44:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:44:07,667 INFO L87 Difference]: Start difference. First operand 309 states and 358 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:07,787 INFO L93 Difference]: Finished difference Result 495 states and 576 transitions. [2023-11-28 20:44:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:44:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2023-11-28 20:44:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:07,791 INFO L225 Difference]: With dead ends: 495 [2023-11-28 20:44:07,791 INFO L226 Difference]: Without dead ends: 493 [2023-11-28 20:44:07,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:44:07,792 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 77 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:07,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 132 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-28 20:44:07,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 432. [2023-11-28 20:44:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 399 states have (on average 1.1729323308270676) internal successors, (468), 405 states have internal predecessors, (468), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-28 20:44:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 510 transitions. [2023-11-28 20:44:07,839 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 510 transitions. Word has length 53 [2023-11-28 20:44:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:07,839 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 510 transitions. [2023-11-28 20:44:07,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 510 transitions. [2023-11-28 20:44:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-28 20:44:07,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:07,841 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:07,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 20:44:08,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 20:44:08,042 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:08,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1171212027, now seen corresponding path program 1 times [2023-11-28 20:44:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:08,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528612985] [2023-11-28 20:44:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:08,052 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:08,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469283428] [2023-11-28 20:44:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:08,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:08,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:08,060 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:08,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 20:44:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:08,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:44:08,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:08,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:44:08,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:08,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528612985] [2023-11-28 20:44:08,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:08,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469283428] [2023-11-28 20:44:08,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469283428] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:08,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-28 20:44:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499850474] [2023-11-28 20:44:08,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:08,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:44:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:44:08,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:44:08,388 INFO L87 Difference]: Start difference. First operand 432 states and 510 transitions. Second operand has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-28 20:44:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:08,607 INFO L93 Difference]: Finished difference Result 764 states and 911 transitions. [2023-11-28 20:44:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 20:44:08,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 64 [2023-11-28 20:44:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:08,612 INFO L225 Difference]: With dead ends: 764 [2023-11-28 20:44:08,612 INFO L226 Difference]: Without dead ends: 753 [2023-11-28 20:44:08,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:44:08,613 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 124 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:08,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 301 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-28 20:44:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 736. [2023-11-28 20:44:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 688 states have (on average 1.1438953488372092) internal successors, (787), 694 states have internal predecessors, (787), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-28 20:44:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 855 transitions. [2023-11-28 20:44:08,653 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 855 transitions. Word has length 64 [2023-11-28 20:44:08,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:08,653 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 855 transitions. [2023-11-28 20:44:08,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-28 20:44:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 855 transitions. [2023-11-28 20:44:08,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-28 20:44:08,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:08,654 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:08,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-28 20:44:08,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:08,855 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:08,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1171212445, now seen corresponding path program 2 times [2023-11-28 20:44:08,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856652109] [2023-11-28 20:44:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:08,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:08,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:08,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144426294] [2023-11-28 20:44:08,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:08,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:08,863 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:08,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 20:44:08,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:08,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:08,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:44:08,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:44:09,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:09,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:09,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856652109] [2023-11-28 20:44:09,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:09,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144426294] [2023-11-28 20:44:09,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144426294] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:09,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:09,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-28 20:44:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134196397] [2023-11-28 20:44:09,180 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:09,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:44:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:09,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:44:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:44:09,181 INFO L87 Difference]: Start difference. First operand 736 states and 855 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 20:44:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:09,380 INFO L93 Difference]: Finished difference Result 957 states and 1119 transitions. [2023-11-28 20:44:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:44:09,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 64 [2023-11-28 20:44:09,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:09,385 INFO L225 Difference]: With dead ends: 957 [2023-11-28 20:44:09,385 INFO L226 Difference]: Without dead ends: 952 [2023-11-28 20:44:09,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:09,386 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:09,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 194 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:09,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2023-11-28 20:44:09,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 660. [2023-11-28 20:44:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 615 states have (on average 1.1414634146341462) internal successors, (702), 621 states have internal predecessors, (702), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-28 20:44:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 764 transitions. [2023-11-28 20:44:09,428 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 764 transitions. Word has length 64 [2023-11-28 20:44:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:09,429 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 764 transitions. [2023-11-28 20:44:09,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 20:44:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 764 transitions. [2023-11-28 20:44:09,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-28 20:44:09,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:09,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:09,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 20:44:09,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:09,631 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:09,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 35995903, now seen corresponding path program 2 times [2023-11-28 20:44:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:09,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132116348] [2023-11-28 20:44:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:09,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:09,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757452922] [2023-11-28 20:44:09,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:09,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:09,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:09,642 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:09,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 20:44:09,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:09,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:09,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:44:09,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-28 20:44:09,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-28 20:44:09,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132116348] [2023-11-28 20:44:09,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757452922] [2023-11-28 20:44:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757452922] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:09,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:09,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-28 20:44:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890644445] [2023-11-28 20:44:09,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:09,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:44:09,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:09,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:44:09,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:44:09,967 INFO L87 Difference]: Start difference. First operand 660 states and 764 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:10,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:10,360 INFO L93 Difference]: Finished difference Result 690 states and 793 transitions. [2023-11-28 20:44:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 20:44:10,361 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 66 [2023-11-28 20:44:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:10,364 INFO L225 Difference]: With dead ends: 690 [2023-11-28 20:44:10,364 INFO L226 Difference]: Without dead ends: 689 [2023-11-28 20:44:10,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-11-28 20:44:10,365 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 101 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:10,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 141 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:44:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-28 20:44:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 673. [2023-11-28 20:44:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 628 states have (on average 1.1321656050955413) internal successors, (711), 634 states have internal predecessors, (711), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-28 20:44:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 773 transitions. [2023-11-28 20:44:10,404 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 773 transitions. Word has length 66 [2023-11-28 20:44:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 773 transitions. [2023-11-28 20:44:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 773 transitions. [2023-11-28 20:44:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-28 20:44:10,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:10,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:10,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:10,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:10,606 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:10,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1907061328, now seen corresponding path program 1 times [2023-11-28 20:44:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864137917] [2023-11-28 20:44:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:10,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:10,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731578603] [2023-11-28 20:44:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:10,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:10,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:10,630 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:10,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 20:44:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:10,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:44:10,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 20:44:10,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 20:44:10,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:10,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864137917] [2023-11-28 20:44:10,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:10,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731578603] [2023-11-28 20:44:10,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731578603] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:10,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:10,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-28 20:44:10,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392288616] [2023-11-28 20:44:10,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:10,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:44:10,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:44:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:44:10,875 INFO L87 Difference]: Start difference. First operand 673 states and 773 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:11,052 INFO L93 Difference]: Finished difference Result 1125 states and 1305 transitions. [2023-11-28 20:44:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:44:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 87 [2023-11-28 20:44:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:11,057 INFO L225 Difference]: With dead ends: 1125 [2023-11-28 20:44:11,057 INFO L226 Difference]: Without dead ends: 919 [2023-11-28 20:44:11,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:11,059 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 87 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:11,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 196 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-28 20:44:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 736. [2023-11-28 20:44:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 688 states have (on average 1.125) internal successors, (774), 694 states have internal predecessors, (774), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-28 20:44:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 842 transitions. [2023-11-28 20:44:11,141 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 842 transitions. Word has length 87 [2023-11-28 20:44:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:11,141 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 842 transitions. [2023-11-28 20:44:11,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-28 20:44:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 842 transitions. [2023-11-28 20:44:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-28 20:44:11,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:11,143 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:11,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-28 20:44:11,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-28 20:44:11,344 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:11,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:11,344 INFO L85 PathProgramCache]: Analyzing trace with hash -473710298, now seen corresponding path program 3 times [2023-11-28 20:44:11,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:11,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129298214] [2023-11-28 20:44:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:11,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:11,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033955695] [2023-11-28 20:44:11,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:44:11,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:11,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:11,354 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:11,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 20:44:11,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 20:44:11,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:11,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:44:11,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:11,477 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 50 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:44:11,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129298214] [2023-11-28 20:44:12,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033955695] [2023-11-28 20:44:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033955695] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:12,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-28 20:44:12,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90547204] [2023-11-28 20:44:12,791 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:12,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:44:12,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:44:12,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:44:12,792 INFO L87 Difference]: Start difference. First operand 736 states and 842 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-11-28 20:44:12,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:12,880 INFO L93 Difference]: Finished difference Result 1146 states and 1311 transitions. [2023-11-28 20:44:12,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:44:12,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 87 [2023-11-28 20:44:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:12,883 INFO L225 Difference]: With dead ends: 1146 [2023-11-28 20:44:12,883 INFO L226 Difference]: Without dead ends: 649 [2023-11-28 20:44:12,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:12,885 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:12,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 108 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:44:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-28 20:44:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 641. [2023-11-28 20:44:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 597 states have (on average 1.1139028475711892) internal successors, (665), 603 states have internal predecessors, (665), 30 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-28 20:44:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 725 transitions. [2023-11-28 20:44:12,935 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 725 transitions. Word has length 87 [2023-11-28 20:44:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:12,935 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 725 transitions. [2023-11-28 20:44:12,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-11-28 20:44:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 725 transitions. [2023-11-28 20:44:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-28 20:44:12,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:12,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:12,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-28 20:44:13,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-28 20:44:13,137 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:13,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:13,137 INFO L85 PathProgramCache]: Analyzing trace with hash 267410460, now seen corresponding path program 1 times [2023-11-28 20:44:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:13,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678765094] [2023-11-28 20:44:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:13,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:13,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:13,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635661879] [2023-11-28 20:44:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:13,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:13,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:13,144 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:13,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 20:44:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:13,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:44:13,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-28 20:44:13,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-28 20:44:13,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:13,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678765094] [2023-11-28 20:44:13,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:13,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635661879] [2023-11-28 20:44:13,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635661879] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:13,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:13,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 20:44:13,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486249688] [2023-11-28 20:44:13,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:13,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 20:44:13,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:13,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 20:44:13,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:44:13,492 INFO L87 Difference]: Start difference. First operand 641 states and 725 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:14,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:14,028 INFO L93 Difference]: Finished difference Result 849 states and 966 transitions. [2023-11-28 20:44:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 20:44:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 89 [2023-11-28 20:44:14,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:14,032 INFO L225 Difference]: With dead ends: 849 [2023-11-28 20:44:14,032 INFO L226 Difference]: Without dead ends: 843 [2023-11-28 20:44:14,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2023-11-28 20:44:14,033 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 193 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:14,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 172 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:44:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-28 20:44:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 799. [2023-11-28 20:44:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 748 states have (on average 1.1136363636363635) internal successors, (833), 754 states have internal predecessors, (833), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-28 20:44:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 907 transitions. [2023-11-28 20:44:14,098 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 907 transitions. Word has length 89 [2023-11-28 20:44:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:14,098 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 907 transitions. [2023-11-28 20:44:14,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 907 transitions. [2023-11-28 20:44:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 20:44:14,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:14,100 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, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:14,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:14,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-28 20:44:14,301 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:14,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:14,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1669053778, now seen corresponding path program 1 times [2023-11-28 20:44:14,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:14,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015780870] [2023-11-28 20:44:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:14,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973014653] [2023-11-28 20:44:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:14,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:14,311 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:14,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 20:44:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:14,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:44:14,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:44:14,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:44:14,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:14,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015780870] [2023-11-28 20:44:14,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:14,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973014653] [2023-11-28 20:44:14,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973014653] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:14,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:14,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-28 20:44:14,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370220366] [2023-11-28 20:44:14,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:14,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:44:14,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:44:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:14,543 INFO L87 Difference]: Start difference. First operand 799 states and 907 transitions. Second operand has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-28 20:44:15,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:15,100 INFO L93 Difference]: Finished difference Result 1502 states and 1777 transitions. [2023-11-28 20:44:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:44:15,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 102 [2023-11-28 20:44:15,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:15,108 INFO L225 Difference]: With dead ends: 1502 [2023-11-28 20:44:15,108 INFO L226 Difference]: Without dead ends: 1501 [2023-11-28 20:44:15,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:15,109 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 169 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:15,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 247 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 20:44:15,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2023-11-28 20:44:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1415. [2023-11-28 20:44:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1331 states have (on average 1.1855747558226897) internal successors, (1578), 1337 states have internal predecessors, (1578), 70 states have call successors, (70), 7 states have call predecessors, (70), 7 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-28 20:44:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1718 transitions. [2023-11-28 20:44:15,200 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1718 transitions. Word has length 102 [2023-11-28 20:44:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:15,201 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 1718 transitions. [2023-11-28 20:44:15,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-28 20:44:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1718 transitions. [2023-11-28 20:44:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-28 20:44:15,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:15,202 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:15,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-28 20:44:15,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-28 20:44:15,402 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:15,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:15,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1822588265, now seen corresponding path program 2 times [2023-11-28 20:44:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:15,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729808028] [2023-11-28 20:44:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:15,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:15,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:15,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550483554] [2023-11-28 20:44:15,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:15,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:15,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:15,415 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:15,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 20:44:15,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:15,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:15,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:44:15,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-28 20:44:15,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-28 20:44:16,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:16,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729808028] [2023-11-28 20:44:16,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:16,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550483554] [2023-11-28 20:44:16,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550483554] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:16,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:16,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-28 20:44:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359003554] [2023-11-28 20:44:16,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:16,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 20:44:16,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:16,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 20:44:16,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:44:16,015 INFO L87 Difference]: Start difference. First operand 1415 states and 1718 transitions. Second operand has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:17,740 INFO L93 Difference]: Finished difference Result 1880 states and 2286 transitions. [2023-11-28 20:44:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 20:44:17,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 110 [2023-11-28 20:44:17,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:17,748 INFO L225 Difference]: With dead ends: 1880 [2023-11-28 20:44:17,748 INFO L226 Difference]: Without dead ends: 1856 [2023-11-28 20:44:17,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:44:17,750 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 377 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:17,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 411 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:44:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2023-11-28 20:44:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1785. [2023-11-28 20:44:17,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1682 states have (on average 1.1468489892984541) internal successors, (1929), 1688 states have internal predecessors, (1929), 89 states have call successors, (89), 7 states have call predecessors, (89), 7 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-28 20:44:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2107 transitions. [2023-11-28 20:44:17,924 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2107 transitions. Word has length 110 [2023-11-28 20:44:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:17,925 INFO L495 AbstractCegarLoop]: Abstraction has 1785 states and 2107 transitions. [2023-11-28 20:44:17,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2107 transitions. [2023-11-28 20:44:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-28 20:44:17,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:17,926 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:17,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:18,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-28 20:44:18,132 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:18,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:18,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1902664721, now seen corresponding path program 2 times [2023-11-28 20:44:18,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:18,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095587950] [2023-11-28 20:44:18,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:18,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:18,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:18,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676477770] [2023-11-28 20:44:18,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:18,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:18,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:18,145 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:18,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 20:44:18,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:18,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:18,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:44:18,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-28 20:44:18,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-28 20:44:18,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:18,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095587950] [2023-11-28 20:44:18,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:18,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676477770] [2023-11-28 20:44:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676477770] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:18,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-28 20:44:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345122912] [2023-11-28 20:44:18,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:18,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 20:44:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:18,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 20:44:18,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:44:18,432 INFO L87 Difference]: Start difference. First operand 1785 states and 2107 transitions. Second operand has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:44:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:18,771 INFO L93 Difference]: Finished difference Result 3603 states and 4379 transitions. [2023-11-28 20:44:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:44:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 122 [2023-11-28 20:44:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:18,785 INFO L225 Difference]: With dead ends: 3603 [2023-11-28 20:44:18,786 INFO L226 Difference]: Without dead ends: 3602 [2023-11-28 20:44:18,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:44:18,787 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 198 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:18,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 220 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:18,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2023-11-28 20:44:19,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3317. [2023-11-28 20:44:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3132 states have (on average 1.1803959131545338) internal successors, (3697), 3138 states have internal predecessors, (3697), 171 states have call successors, (171), 7 states have call predecessors, (171), 7 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2023-11-28 20:44:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4039 transitions. [2023-11-28 20:44:19,030 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4039 transitions. Word has length 122 [2023-11-28 20:44:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:19,030 INFO L495 AbstractCegarLoop]: Abstraction has 3317 states and 4039 transitions. [2023-11-28 20:44:19,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:44:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4039 transitions. [2023-11-28 20:44:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-28 20:44:19,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:19,034 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:19,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-28 20:44:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 20:44:19,234 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:19,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2035791862, now seen corresponding path program 2 times [2023-11-28 20:44:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525997348] [2023-11-28 20:44:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:19,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:19,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:19,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104662985] [2023-11-28 20:44:19,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:19,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:19,254 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:19,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 20:44:19,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:19,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:19,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:44:19,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:19,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-28 20:44:19,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:19,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525997348] [2023-11-28 20:44:19,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:19,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104662985] [2023-11-28 20:44:19,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104662985] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:19,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:19,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2023-11-28 20:44:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737029630] [2023-11-28 20:44:19,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-28 20:44:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-28 20:44:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-11-28 20:44:19,882 INFO L87 Difference]: Start difference. First operand 3317 states and 4039 transitions. Second operand has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-11-28 20:44:20,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:20,787 INFO L93 Difference]: Finished difference Result 7895 states and 9563 transitions. [2023-11-28 20:44:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-28 20:44:20,788 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 153 [2023-11-28 20:44:20,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:20,824 INFO L225 Difference]: With dead ends: 7895 [2023-11-28 20:44:20,824 INFO L226 Difference]: Without dead ends: 7894 [2023-11-28 20:44:20,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1049, Invalid=2143, Unknown=0, NotChecked=0, Total=3192 [2023-11-28 20:44:20,827 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 453 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:20,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 694 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2023-11-28 20:44:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 7826. [2023-11-28 20:44:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 7423 states have (on average 1.139970362387175) internal successors, (8462), 7429 states have internal predecessors, (8462), 381 states have call successors, (381), 15 states have call predecessors, (381), 15 states have return successors, (381), 381 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-28 20:44:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 9224 transitions. [2023-11-28 20:44:21,399 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 9224 transitions. Word has length 153 [2023-11-28 20:44:21,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:21,399 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 9224 transitions. [2023-11-28 20:44:21,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-11-28 20:44:21,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 9224 transitions. [2023-11-28 20:44:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-28 20:44:21,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:21,402 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:21,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 20:44:21,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 20:44:21,602 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:21,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:21,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1757446394, now seen corresponding path program 1 times [2023-11-28 20:44:21,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867087040] [2023-11-28 20:44:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:21,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:21,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974187278] [2023-11-28 20:44:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:21,615 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:21,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 20:44:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:21,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:44:21,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 206 proven. 181 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:44:21,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:22,149 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 206 proven. 181 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:44:22,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867087040] [2023-11-28 20:44:22,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974187278] [2023-11-28 20:44:22,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974187278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:22,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:22,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2023-11-28 20:44:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498955028] [2023-11-28 20:44:22,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:22,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 20:44:22,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:22,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 20:44:22,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:44:22,152 INFO L87 Difference]: Start difference. First operand 7826 states and 9224 transitions. Second operand has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-28 20:44:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:23,596 INFO L93 Difference]: Finished difference Result 14578 states and 17404 transitions. [2023-11-28 20:44:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 20:44:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 179 [2023-11-28 20:44:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:23,637 INFO L225 Difference]: With dead ends: 14578 [2023-11-28 20:44:23,637 INFO L226 Difference]: Without dead ends: 10440 [2023-11-28 20:44:23,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 340 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:44:23,645 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 374 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:23,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 766 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 20:44:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2023-11-28 20:44:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 8187. [2023-11-28 20:44:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8187 states, 7762 states have (on average 1.1296057717083225) internal successors, (8768), 7768 states have internal predecessors, (8768), 403 states have call successors, (403), 15 states have call predecessors, (403), 15 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2023-11-28 20:44:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8187 states to 8187 states and 9574 transitions. [2023-11-28 20:44:24,173 INFO L78 Accepts]: Start accepts. Automaton has 8187 states and 9574 transitions. Word has length 179 [2023-11-28 20:44:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:24,174 INFO L495 AbstractCegarLoop]: Abstraction has 8187 states and 9574 transitions. [2023-11-28 20:44:24,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-28 20:44:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8187 states and 9574 transitions. [2023-11-28 20:44:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-28 20:44:24,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:24,178 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:24,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 20:44:24,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 20:44:24,378 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:24,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1220312272, now seen corresponding path program 1 times [2023-11-28 20:44:24,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:24,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408467345] [2023-11-28 20:44:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:24,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:24,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1279132486] [2023-11-28 20:44:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:24,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:24,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:24,388 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:24,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 20:44:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:24,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:44:24,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:44:24,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:44:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408467345] [2023-11-28 20:44:25,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279132486] [2023-11-28 20:44:25,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279132486] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:25,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:25,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-28 20:44:25,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936780521] [2023-11-28 20:44:25,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:25,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-28 20:44:25,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-28 20:44:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 20:44:25,097 INFO L87 Difference]: Start difference. First operand 8187 states and 9574 transitions. Second operand has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-28 20:44:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:26,324 INFO L93 Difference]: Finished difference Result 11080 states and 13126 transitions. [2023-11-28 20:44:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-28 20:44:26,325 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 181 [2023-11-28 20:44:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:26,343 INFO L225 Difference]: With dead ends: 11080 [2023-11-28 20:44:26,343 INFO L226 Difference]: Without dead ends: 11071 [2023-11-28 20:44:26,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1359, Invalid=2801, Unknown=0, NotChecked=0, Total=4160 [2023-11-28 20:44:26,347 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 398 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:26,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 535 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2023-11-28 20:44:26,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 11036. [2023-11-28 20:44:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11036 states, 10473 states have (on average 1.0981571660460232) internal successors, (11501), 10479 states have internal predecessors, (11501), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-28 20:44:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11036 states to 11036 states and 12579 transitions. [2023-11-28 20:44:26,959 INFO L78 Accepts]: Start accepts. Automaton has 11036 states and 12579 transitions. Word has length 181 [2023-11-28 20:44:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:26,960 INFO L495 AbstractCegarLoop]: Abstraction has 11036 states and 12579 transitions. [2023-11-28 20:44:26,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-28 20:44:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 11036 states and 12579 transitions. [2023-11-28 20:44:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-28 20:44:26,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:26,962 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:26,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-28 20:44:27,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:27,163 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:27,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1220712466, now seen corresponding path program 3 times [2023-11-28 20:44:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:27,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227854696] [2023-11-28 20:44:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:27,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:27,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:27,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134052136] [2023-11-28 20:44:27,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:44:27,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:27,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:27,176 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:27,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-28 20:44:27,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 20:44:27,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:27,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:44:27,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-28 20:44:28,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:44:28,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:28,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227854696] [2023-11-28 20:44:28,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:28,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134052136] [2023-11-28 20:44:28,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134052136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:44:28,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:44:28,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:44:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480139850] [2023-11-28 20:44:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:44:28,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:44:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:28,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:44:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:44:28,245 INFO L87 Difference]: Start difference. First operand 11036 states and 12579 transitions. Second operand has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:28,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:28,875 INFO L93 Difference]: Finished difference Result 11044 states and 12583 transitions. [2023-11-28 20:44:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:44:28,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 181 [2023-11-28 20:44:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:28,898 INFO L225 Difference]: With dead ends: 11044 [2023-11-28 20:44:28,898 INFO L226 Difference]: Without dead ends: 11038 [2023-11-28 20:44:28,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:44:28,901 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:28,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 116 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:44:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11038 states. [2023-11-28 20:44:29,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11038 to 11035. [2023-11-28 20:44:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10472 states have (on average 1.0972116119174942) internal successors, (11490), 10478 states have internal predecessors, (11490), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-28 20:44:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 12568 transitions. [2023-11-28 20:44:29,666 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 12568 transitions. Word has length 181 [2023-11-28 20:44:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:29,667 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 12568 transitions. [2023-11-28 20:44:29,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 20:44:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 12568 transitions. [2023-11-28 20:44:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-28 20:44:29,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:29,670 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:29,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-28 20:44:29,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:29,871 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:29,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash 440755932, now seen corresponding path program 2 times [2023-11-28 20:44:29,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:29,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698597896] [2023-11-28 20:44:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:29,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:29,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:29,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474270850] [2023-11-28 20:44:29,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:29,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:29,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:29,881 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:29,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-28 20:44:29,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:29,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:29,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 20:44:29,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-28 20:44:30,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-28 20:44:30,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698597896] [2023-11-28 20:44:30,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474270850] [2023-11-28 20:44:30,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474270850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:30,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:30,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-28 20:44:30,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850344572] [2023-11-28 20:44:30,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 20:44:30,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:30,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 20:44:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:44:30,532 INFO L87 Difference]: Start difference. First operand 11035 states and 12568 transitions. Second operand has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-28 20:44:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:32,242 INFO L93 Difference]: Finished difference Result 11051 states and 12568 transitions. [2023-11-28 20:44:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-28 20:44:32,243 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 181 [2023-11-28 20:44:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:32,254 INFO L225 Difference]: With dead ends: 11051 [2023-11-28 20:44:32,254 INFO L226 Difference]: Without dead ends: 11050 [2023-11-28 20:44:32,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1051, Invalid=2371, Unknown=0, NotChecked=0, Total=3422 [2023-11-28 20:44:32,257 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 321 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:32,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 239 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 20:44:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2023-11-28 20:44:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 11035. [2023-11-28 20:44:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10472 states have (on average 1.0727654698242934) internal successors, (11234), 10478 states have internal predecessors, (11234), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-28 20:44:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 12312 transitions. [2023-11-28 20:44:33,057 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 12312 transitions. Word has length 181 [2023-11-28 20:44:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:33,058 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 12312 transitions. [2023-11-28 20:44:33,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-28 20:44:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 12312 transitions. [2023-11-28 20:44:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-28 20:44:33,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:33,063 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:33,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-28 20:44:33,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:33,264 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:33,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -773358757, now seen corresponding path program 2 times [2023-11-28 20:44:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:33,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000582149] [2023-11-28 20:44:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:33,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:33,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:33,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955541862] [2023-11-28 20:44:33,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:33,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:33,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:33,284 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:33,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-28 20:44:33,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:33,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:33,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:44:33,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-28 20:44:33,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-28 20:44:33,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000582149] [2023-11-28 20:44:33,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:33,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955541862] [2023-11-28 20:44:33,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955541862] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:33,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:33,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-28 20:44:33,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567321091] [2023-11-28 20:44:33,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:33,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:44:33,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:33,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:44:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:44:33,852 INFO L87 Difference]: Start difference. First operand 11035 states and 12312 transitions. Second operand has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-28 20:44:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:35,830 INFO L93 Difference]: Finished difference Result 14510 states and 16502 transitions. [2023-11-28 20:44:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 20:44:35,831 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 217 [2023-11-28 20:44:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:35,846 INFO L225 Difference]: With dead ends: 14510 [2023-11-28 20:44:35,846 INFO L226 Difference]: Without dead ends: 14509 [2023-11-28 20:44:35,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:44:35,849 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 568 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:35,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 416 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-28 20:44:35,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2023-11-28 20:44:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 14307. [2023-11-28 20:44:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14307 states, 13571 states have (on average 1.100729496720949) internal successors, (14938), 13577 states have internal predecessors, (14938), 712 states have call successors, (712), 17 states have call predecessors, (712), 17 states have return successors, (712), 712 states have call predecessors, (712), 712 states have call successors, (712) [2023-11-28 20:44:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14307 states to 14307 states and 16362 transitions. [2023-11-28 20:44:36,725 INFO L78 Accepts]: Start accepts. Automaton has 14307 states and 16362 transitions. Word has length 217 [2023-11-28 20:44:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:36,726 INFO L495 AbstractCegarLoop]: Abstraction has 14307 states and 16362 transitions. [2023-11-28 20:44:36,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-28 20:44:36,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14307 states and 16362 transitions. [2023-11-28 20:44:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-28 20:44:36,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:36,731 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:36,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-28 20:44:36,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:36,936 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:36,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:36,937 INFO L85 PathProgramCache]: Analyzing trace with hash 697380550, now seen corresponding path program 3 times [2023-11-28 20:44:36,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:36,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583841385] [2023-11-28 20:44:36,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:36,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:36,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:36,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427060353] [2023-11-28 20:44:36,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:44:36,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:36,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:36,947 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:36,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-28 20:44:37,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-28 20:44:37,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:37,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:44:37,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 346 proven. 69 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-11-28 20:44:37,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:37,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:37,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583841385] [2023-11-28 20:44:37,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:37,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427060353] [2023-11-28 20:44:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427060353] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:37,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-28 20:44:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257579940] [2023-11-28 20:44:37,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:37,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:44:37,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:44:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:44:37,390 INFO L87 Difference]: Start difference. First operand 14307 states and 16362 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-28 20:44:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:38,493 INFO L93 Difference]: Finished difference Result 22625 states and 26236 transitions. [2023-11-28 20:44:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:44:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 225 [2023-11-28 20:44:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:38,511 INFO L225 Difference]: With dead ends: 22625 [2023-11-28 20:44:38,511 INFO L226 Difference]: Without dead ends: 14346 [2023-11-28 20:44:38,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:44:38,521 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 88 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:38,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 465 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:44:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14346 states. [2023-11-28 20:44:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14346 to 12826. [2023-11-28 20:44:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12826 states, 12160 states have (on average 1.107483552631579) internal successors, (13467), 12166 states have internal predecessors, (13467), 642 states have call successors, (642), 17 states have call predecessors, (642), 17 states have return successors, (642), 642 states have call predecessors, (642), 642 states have call successors, (642) [2023-11-28 20:44:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12826 states to 12826 states and 14751 transitions. [2023-11-28 20:44:39,446 INFO L78 Accepts]: Start accepts. Automaton has 12826 states and 14751 transitions. Word has length 225 [2023-11-28 20:44:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:39,447 INFO L495 AbstractCegarLoop]: Abstraction has 12826 states and 14751 transitions. [2023-11-28 20:44:39,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-28 20:44:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 12826 states and 14751 transitions. [2023-11-28 20:44:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-28 20:44:39,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:39,452 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:39,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-28 20:44:39,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:39,653 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:39,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:39,653 INFO L85 PathProgramCache]: Analyzing trace with hash 992403485, now seen corresponding path program 4 times [2023-11-28 20:44:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:39,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863114163] [2023-11-28 20:44:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:39,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:39,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:39,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200044280] [2023-11-28 20:44:39,668 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:44:39,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:39,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:39,669 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:39,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-28 20:44:39,768 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:44:39,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:39,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-28 20:44:39,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 216 proven. 683 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-28 20:44:40,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:40,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:40,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863114163] [2023-11-28 20:44:40,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:40,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200044280] [2023-11-28 20:44:40,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200044280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:40,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:40,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-28 20:44:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279815442] [2023-11-28 20:44:40,703 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:40,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-28 20:44:40,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-28 20:44:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:44:40,705 INFO L87 Difference]: Start difference. First operand 12826 states and 14751 transitions. Second operand has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:44:42,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:42,508 INFO L93 Difference]: Finished difference Result 13404 states and 15379 transitions. [2023-11-28 20:44:42,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 20:44:42,509 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 248 [2023-11-28 20:44:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:42,525 INFO L225 Difference]: With dead ends: 13404 [2023-11-28 20:44:42,525 INFO L226 Difference]: Without dead ends: 13400 [2023-11-28 20:44:42,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2023-11-28 20:44:42,529 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:42,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 810 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:44:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13400 states. [2023-11-28 20:44:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13400 to 12816. [2023-11-28 20:44:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12816 states, 12150 states have (on average 1.1074897119341565) internal successors, (13456), 12156 states have internal predecessors, (13456), 642 states have call successors, (642), 17 states have call predecessors, (642), 17 states have return successors, (642), 642 states have call predecessors, (642), 642 states have call successors, (642) [2023-11-28 20:44:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12816 states to 12816 states and 14740 transitions. [2023-11-28 20:44:43,287 INFO L78 Accepts]: Start accepts. Automaton has 12816 states and 14740 transitions. Word has length 248 [2023-11-28 20:44:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:43,287 INFO L495 AbstractCegarLoop]: Abstraction has 12816 states and 14740 transitions. [2023-11-28 20:44:43,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:44:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand 12816 states and 14740 transitions. [2023-11-28 20:44:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-28 20:44:43,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:43,291 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:43,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-28 20:44:43,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:43,492 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:43,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash -70390799, now seen corresponding path program 3 times [2023-11-28 20:44:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:43,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99126565] [2023-11-28 20:44:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:43,501 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:43,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458747867] [2023-11-28 20:44:43,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:44:43,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:43,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:43,503 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:43,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-28 20:44:43,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-28 20:44:43,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:43,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:44:43,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-28 20:44:43,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-28 20:44:44,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99126565] [2023-11-28 20:44:44,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458747867] [2023-11-28 20:44:44,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458747867] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:44,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:44,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-28 20:44:44,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443812714] [2023-11-28 20:44:44,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:44,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:44:44,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:44,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:44:44,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:44:44,174 INFO L87 Difference]: Start difference. First operand 12816 states and 14740 transitions. Second operand has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-28 20:44:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:45,703 INFO L93 Difference]: Finished difference Result 19104 states and 22612 transitions. [2023-11-28 20:44:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 20:44:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 260 [2023-11-28 20:44:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:45,726 INFO L225 Difference]: With dead ends: 19104 [2023-11-28 20:44:45,726 INFO L226 Difference]: Without dead ends: 19103 [2023-11-28 20:44:45,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:44:45,731 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 504 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:45,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 405 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:44:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19103 states. [2023-11-28 20:44:46,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19103 to 18091. [2023-11-28 20:44:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18091 states, 17146 states have (on average 1.1393911116295345) internal successors, (19536), 17152 states have internal predecessors, (19536), 921 states have call successors, (921), 17 states have call predecessors, (921), 17 states have return successors, (921), 921 states have call predecessors, (921), 921 states have call successors, (921) [2023-11-28 20:44:46,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18091 states to 18091 states and 21378 transitions. [2023-11-28 20:44:46,888 INFO L78 Accepts]: Start accepts. Automaton has 18091 states and 21378 transitions. Word has length 260 [2023-11-28 20:44:46,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:46,888 INFO L495 AbstractCegarLoop]: Abstraction has 18091 states and 21378 transitions. [2023-11-28 20:44:46,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-28 20:44:46,888 INFO L276 IsEmpty]: Start isEmpty. Operand 18091 states and 21378 transitions. [2023-11-28 20:44:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-28 20:44:46,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:46,894 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:46,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:47,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:47,095 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:47,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:47,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1073594460, now seen corresponding path program 5 times [2023-11-28 20:44:47,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:47,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806060807] [2023-11-28 20:44:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:47,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:47,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:47,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418217354] [2023-11-28 20:44:47,110 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:44:47,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:47,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:47,111 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:47,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-28 20:44:47,214 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-11-28 20:44:47,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:47,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:44:47,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 335 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-28 20:44:47,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 335 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-28 20:44:47,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806060807] [2023-11-28 20:44:47,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418217354] [2023-11-28 20:44:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418217354] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:44:47,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:47,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2023-11-28 20:44:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919576815] [2023-11-28 20:44:47,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:47,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:44:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:44:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:44:47,955 INFO L87 Difference]: Start difference. First operand 18091 states and 21378 transitions. Second operand has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2023-11-28 20:44:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:50,454 INFO L93 Difference]: Finished difference Result 36897 states and 44642 transitions. [2023-11-28 20:44:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-28 20:44:50,455 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 271 [2023-11-28 20:44:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:50,481 INFO L225 Difference]: With dead ends: 36897 [2023-11-28 20:44:50,482 INFO L226 Difference]: Without dead ends: 23630 [2023-11-28 20:44:50,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 516 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=474, Invalid=1418, Unknown=0, NotChecked=0, Total=1892 [2023-11-28 20:44:50,506 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 517 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:50,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 737 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 20:44:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23630 states. [2023-11-28 20:44:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23630 to 15659. [2023-11-28 20:44:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15659 states, 14825 states have (on average 1.1540640809443508) internal successors, (17109), 14831 states have internal predecessors, (17109), 810 states have call successors, (810), 17 states have call predecessors, (810), 17 states have return successors, (810), 810 states have call predecessors, (810), 810 states have call successors, (810) [2023-11-28 20:44:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15659 states to 15659 states and 18729 transitions. [2023-11-28 20:44:51,495 INFO L78 Accepts]: Start accepts. Automaton has 15659 states and 18729 transitions. Word has length 271 [2023-11-28 20:44:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:51,495 INFO L495 AbstractCegarLoop]: Abstraction has 15659 states and 18729 transitions. [2023-11-28 20:44:51,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2023-11-28 20:44:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15659 states and 18729 transitions. [2023-11-28 20:44:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-28 20:44:51,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:51,500 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:51,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-28 20:44:51,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:51,701 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:51,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash 870882025, now seen corresponding path program 6 times [2023-11-28 20:44:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:51,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376326331] [2023-11-28 20:44:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:51,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:51,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:51,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193801069] [2023-11-28 20:44:51,712 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-28 20:44:51,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:51,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:51,713 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:51,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-28 20:44:51,867 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2023-11-28 20:44:51,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:51,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-28 20:44:51,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 981 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2023-11-28 20:44:52,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376326331] [2023-11-28 20:44:52,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193801069] [2023-11-28 20:44:52,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193801069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:52,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:52,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 20:44:52,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104284714] [2023-11-28 20:44:52,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:52,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 20:44:52,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:52,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 20:44:52,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:44:52,557 INFO L87 Difference]: Start difference. First operand 15659 states and 18729 transitions. Second operand has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-28 20:44:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:54,084 INFO L93 Difference]: Finished difference Result 16809 states and 20129 transitions. [2023-11-28 20:44:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:44:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 294 [2023-11-28 20:44:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:54,104 INFO L225 Difference]: With dead ends: 16809 [2023-11-28 20:44:54,104 INFO L226 Difference]: Without dead ends: 16805 [2023-11-28 20:44:54,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:44:54,109 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 45 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:54,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 722 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 20:44:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16805 states. [2023-11-28 20:44:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16805 to 15953. [2023-11-28 20:44:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1547831843760343) internal successors, (17443), 15111 states have internal predecessors, (17443), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-28 20:44:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19091 transitions. [2023-11-28 20:44:55,220 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19091 transitions. Word has length 294 [2023-11-28 20:44:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:55,220 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19091 transitions. [2023-11-28 20:44:55,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-28 20:44:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19091 transitions. [2023-11-28 20:44:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-28 20:44:55,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:55,225 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:55,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-28 20:44:55,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-28 20:44:55,425 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:55,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:55,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1771351713, now seen corresponding path program 7 times [2023-11-28 20:44:55,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:55,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663871194] [2023-11-28 20:44:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:55,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:55,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621763608] [2023-11-28 20:44:55,438 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-28 20:44:55,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:55,439 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:55,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-28 20:44:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:55,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:44:55,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1014 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-11-28 20:44:56,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:56,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663871194] [2023-11-28 20:44:56,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621763608] [2023-11-28 20:44:56,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621763608] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:56,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:56,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 20:44:56,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360796580] [2023-11-28 20:44:56,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:56,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:44:56,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:44:56,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:44:56,275 INFO L87 Difference]: Start difference. First operand 15953 states and 19091 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:57,654 INFO L93 Difference]: Finished difference Result 17060 states and 20382 transitions. [2023-11-28 20:44:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:44:57,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 294 [2023-11-28 20:44:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:57,671 INFO L225 Difference]: With dead ends: 17060 [2023-11-28 20:44:57,672 INFO L226 Difference]: Without dead ends: 17059 [2023-11-28 20:44:57,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:44:57,675 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:57,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 428 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:44:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17059 states. [2023-11-28 20:44:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17059 to 15953. [2023-11-28 20:44:58,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1547169811320754) internal successors, (17442), 15111 states have internal predecessors, (17442), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-28 20:44:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19090 transitions. [2023-11-28 20:44:58,571 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19090 transitions. Word has length 294 [2023-11-28 20:44:58,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:58,572 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19090 transitions. [2023-11-28 20:44:58,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-28 20:44:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19090 transitions. [2023-11-28 20:44:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-28 20:44:58,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:58,576 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:58,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-28 20:44:58,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:58,776 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:44:58,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash -451095359, now seen corresponding path program 8 times [2023-11-28 20:44:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:44:58,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551413247] [2023-11-28 20:44:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:58,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:44:58,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:44:58,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461738878] [2023-11-28 20:44:58,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:44:58,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:44:58,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:44:58,789 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:44:58,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-28 20:44:58,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:44:58,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:44:58,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 20:44:58,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-28 20:44:59,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:44:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551413247] [2023-11-28 20:44:59,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:44:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461738878] [2023-11-28 20:44:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461738878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:59,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:44:59,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 20:44:59,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366903222] [2023-11-28 20:44:59,540 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:59,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 20:44:59,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:44:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 20:44:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:44:59,541 INFO L87 Difference]: Start difference. First operand 15953 states and 19090 transitions. Second operand has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-28 20:45:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:00,904 INFO L93 Difference]: Finished difference Result 17872 states and 21348 transitions. [2023-11-28 20:45:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:45:00,905 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 294 [2023-11-28 20:45:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:00,920 INFO L225 Difference]: With dead ends: 17872 [2023-11-28 20:45:00,920 INFO L226 Difference]: Without dead ends: 17871 [2023-11-28 20:45:00,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:45:00,923 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:00,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 307 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:45:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17871 states. [2023-11-28 20:45:01,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17871 to 15953. [2023-11-28 20:45:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1546507778881165) internal successors, (17441), 15111 states have internal predecessors, (17441), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-28 20:45:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19089 transitions. [2023-11-28 20:45:01,812 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19089 transitions. Word has length 294 [2023-11-28 20:45:01,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:01,813 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19089 transitions. [2023-11-28 20:45:01,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-28 20:45:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19089 transitions. [2023-11-28 20:45:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-28 20:45:01,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:01,817 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:01,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-28 20:45:02,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-28 20:45:02,018 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:02,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1723584068, now seen corresponding path program 9 times [2023-11-28 20:45:02,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:02,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690242705] [2023-11-28 20:45:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:02,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:02,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:02,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13072073] [2023-11-28 20:45:02,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:45:02,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:02,036 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:02,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-28 20:45:02,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-28 20:45:02,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:02,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-28 20:45:02,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 39 proven. 1097 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-11-28 20:45:03,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 0 proven. 1097 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2023-11-28 20:45:04,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:04,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690242705] [2023-11-28 20:45:04,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:04,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13072073] [2023-11-28 20:45:04,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13072073] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:45:04,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:45:04,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2023-11-28 20:45:04,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417657167] [2023-11-28 20:45:04,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:04,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-28 20:45:04,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:04,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-28 20:45:04,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:45:04,597 INFO L87 Difference]: Start difference. First operand 15953 states and 19089 transitions. Second operand has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 20:45:08,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:08,834 INFO L93 Difference]: Finished difference Result 18455 states and 22016 transitions. [2023-11-28 20:45:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-28 20:45:08,835 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) Word has length 317 [2023-11-28 20:45:08,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:08,850 INFO L225 Difference]: With dead ends: 18455 [2023-11-28 20:45:08,850 INFO L226 Difference]: Without dead ends: 18445 [2023-11-28 20:45:08,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1117, Invalid=3713, Unknown=0, NotChecked=0, Total=4830 [2023-11-28 20:45:08,854 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 483 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:08,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1575 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 20:45:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18445 states. [2023-11-28 20:45:09,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18445 to 17125. [2023-11-28 20:45:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17125 states, 16217 states have (on average 1.1567490904606277) internal successors, (18759), 16223 states have internal predecessors, (18759), 884 states have call successors, (884), 17 states have call predecessors, (884), 17 states have return successors, (884), 884 states have call predecessors, (884), 884 states have call successors, (884) [2023-11-28 20:45:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17125 states to 17125 states and 20527 transitions. [2023-11-28 20:45:09,815 INFO L78 Accepts]: Start accepts. Automaton has 17125 states and 20527 transitions. Word has length 317 [2023-11-28 20:45:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:09,815 INFO L495 AbstractCegarLoop]: Abstraction has 17125 states and 20527 transitions. [2023-11-28 20:45:09,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 20:45:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17125 states and 20527 transitions. [2023-11-28 20:45:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-28 20:45:09,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:09,822 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:09,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-28 20:45:10,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:10,022 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:10,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash 354923095, now seen corresponding path program 10 times [2023-11-28 20:45:10,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:10,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270040184] [2023-11-28 20:45:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:10,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:10,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:10,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990194238] [2023-11-28 20:45:10,034 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:45:10,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:10,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:10,035 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:10,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-28 20:45:10,146 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:45:10,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:10,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-28 20:45:10,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 69 proven. 1545 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-11-28 20:45:10,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:10,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270040184] [2023-11-28 20:45:10,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990194238] [2023-11-28 20:45:10,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990194238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:45:10,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:45:10,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-28 20:45:10,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982856332] [2023-11-28 20:45:10,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:10,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-28 20:45:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-28 20:45:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:45:10,984 INFO L87 Difference]: Start difference. First operand 17125 states and 20527 transitions. Second operand has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:45:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:13,459 INFO L93 Difference]: Finished difference Result 20000 states and 23865 transitions. [2023-11-28 20:45:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-28 20:45:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 340 [2023-11-28 20:45:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:13,478 INFO L225 Difference]: With dead ends: 20000 [2023-11-28 20:45:13,478 INFO L226 Difference]: Without dead ends: 18905 [2023-11-28 20:45:13,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1340, Unknown=0, NotChecked=0, Total=1722 [2023-11-28 20:45:13,484 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 338 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:13,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 718 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:45:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18905 states. [2023-11-28 20:45:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18905 to 16634. [2023-11-28 20:45:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16634 states, 15751 states have (on average 1.1610056504348931) internal successors, (18287), 15757 states have internal predecessors, (18287), 859 states have call successors, (859), 17 states have call predecessors, (859), 17 states have return successors, (859), 859 states have call predecessors, (859), 859 states have call successors, (859) [2023-11-28 20:45:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16634 states to 16634 states and 20005 transitions. [2023-11-28 20:45:14,609 INFO L78 Accepts]: Start accepts. Automaton has 16634 states and 20005 transitions. Word has length 340 [2023-11-28 20:45:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:14,610 INFO L495 AbstractCegarLoop]: Abstraction has 16634 states and 20005 transitions. [2023-11-28 20:45:14,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:45:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 16634 states and 20005 transitions. [2023-11-28 20:45:14,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-28 20:45:14,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:14,620 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:14,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-28 20:45:14,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-28 20:45:14,820 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:14,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash -192504740, now seen corresponding path program 3 times [2023-11-28 20:45:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:14,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792629196] [2023-11-28 20:45:14,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:14,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:14,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:14,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618994491] [2023-11-28 20:45:14,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:45:14,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:14,834 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:14,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-28 20:45:14,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2023-11-28 20:45:14,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:14,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 20:45:14,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 42 proven. 2059 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-28 20:45:15,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 42 proven. 2059 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-28 20:45:16,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:16,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792629196] [2023-11-28 20:45:16,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:16,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618994491] [2023-11-28 20:45:16,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618994491] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:45:16,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:45:16,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-11-28 20:45:16,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539946338] [2023-11-28 20:45:16,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:16,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-28 20:45:16,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:16,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-28 20:45:16,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=964, Unknown=0, NotChecked=0, Total=1482 [2023-11-28 20:45:16,172 INFO L87 Difference]: Start difference. First operand 16634 states and 20005 transitions. Second operand has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-28 20:45:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:21,774 INFO L93 Difference]: Finished difference Result 42138 states and 51014 transitions. [2023-11-28 20:45:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-11-28 20:45:21,774 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 365 [2023-11-28 20:45:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:21,811 INFO L225 Difference]: With dead ends: 42138 [2023-11-28 20:45:21,811 INFO L226 Difference]: Without dead ends: 42072 [2023-11-28 20:45:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3904 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4259, Invalid=8851, Unknown=0, NotChecked=0, Total=13110 [2023-11-28 20:45:21,822 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1222 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 360 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 20:45:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42072 states. [2023-11-28 20:45:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42072 to 41065. [2023-11-28 20:45:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41065 states, 38989 states have (on average 1.1134679012029034) internal successors, (43413), 38995 states have internal predecessors, (43413), 2052 states have call successors, (2052), 17 states have call predecessors, (2052), 17 states have return successors, (2052), 2052 states have call predecessors, (2052), 2052 states have call successors, (2052) [2023-11-28 20:45:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41065 states to 41065 states and 47517 transitions. [2023-11-28 20:45:24,895 INFO L78 Accepts]: Start accepts. Automaton has 41065 states and 47517 transitions. Word has length 365 [2023-11-28 20:45:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:24,895 INFO L495 AbstractCegarLoop]: Abstraction has 41065 states and 47517 transitions. [2023-11-28 20:45:24,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-28 20:45:24,896 INFO L276 IsEmpty]: Start isEmpty. Operand 41065 states and 47517 transitions. [2023-11-28 20:45:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-28 20:45:24,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:24,904 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:24,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-28 20:45:25,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-28 20:45:25,104 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:25,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:25,105 INFO L85 PathProgramCache]: Analyzing trace with hash -131283242, now seen corresponding path program 3 times [2023-11-28 20:45:25,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:25,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518612090] [2023-11-28 20:45:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:25,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:25,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697315556] [2023-11-28 20:45:25,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:45:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:25,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:25,122 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:25,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-28 20:45:25,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 20:45:25,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:25,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:45:25,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 2464 trivial. 0 not checked. [2023-11-28 20:45:25,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:45:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518612090] [2023-11-28 20:45:25,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697315556] [2023-11-28 20:45:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697315556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:45:25,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:45:25,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:45:25,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719519265] [2023-11-28 20:45:25,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:45:25,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:45:25,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:25,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:45:25,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:45:25,213 INFO L87 Difference]: Start difference. First operand 41065 states and 47517 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:45:27,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:27,863 INFO L93 Difference]: Finished difference Result 41065 states and 47517 transitions. [2023-11-28 20:45:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:45:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 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 383 [2023-11-28 20:45:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:27,905 INFO L225 Difference]: With dead ends: 41065 [2023-11-28 20:45:27,905 INFO L226 Difference]: Without dead ends: 41064 [2023-11-28 20:45:27,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:45:27,912 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 21 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:27,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:45:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41064 states. [2023-11-28 20:45:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41064 to 41042. [2023-11-28 20:45:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41042 states, 38967 states have (on average 1.0615135884209717) internal successors, (41364), 38974 states have internal predecessors, (41364), 2052 states have call successors, (2052), 17 states have call predecessors, (2052), 17 states have return successors, (2052), 2050 states have call predecessors, (2052), 2052 states have call successors, (2052) [2023-11-28 20:45:31,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41042 states to 41042 states and 45468 transitions. [2023-11-28 20:45:31,395 INFO L78 Accepts]: Start accepts. Automaton has 41042 states and 45468 transitions. Word has length 383 [2023-11-28 20:45:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:31,396 INFO L495 AbstractCegarLoop]: Abstraction has 41042 states and 45468 transitions. [2023-11-28 20:45:31,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:45:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 41042 states and 45468 transitions. [2023-11-28 20:45:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-28 20:45:31,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:31,406 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:31,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-28 20:45:31,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-28 20:45:31,606 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:31,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:31,607 INFO L85 PathProgramCache]: Analyzing trace with hash -675637261, now seen corresponding path program 2 times [2023-11-28 20:45:31,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:31,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173182617] [2023-11-28 20:45:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:31,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:31,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867965785] [2023-11-28 20:45:31,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:45:31,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:31,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:31,626 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:31,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-28 20:45:31,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:45:31,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:31,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-28 20:45:31,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2632 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:45:32,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2152 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-11-28 20:45:33,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:33,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173182617] [2023-11-28 20:45:33,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:33,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867965785] [2023-11-28 20:45:33,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867965785] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:45:33,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:45:33,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36] total 70 [2023-11-28 20:45:33,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390082701] [2023-11-28 20:45:33,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:33,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-28 20:45:33,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-28 20:45:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1259, Invalid=3571, Unknown=0, NotChecked=0, Total=4830 [2023-11-28 20:45:33,456 INFO L87 Difference]: Start difference. First operand 41042 states and 45468 transitions. Second operand has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-28 20:45:39,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:39,843 INFO L93 Difference]: Finished difference Result 50916 states and 56844 transitions. [2023-11-28 20:45:39,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-11-28 20:45:39,844 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) Word has length 386 [2023-11-28 20:45:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:39,905 INFO L225 Difference]: With dead ends: 50916 [2023-11-28 20:45:39,905 INFO L226 Difference]: Without dead ends: 50908 [2023-11-28 20:45:39,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4021 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5949, Invalid=12683, Unknown=0, NotChecked=0, Total=18632 [2023-11-28 20:45:39,918 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 815 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:39,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 1096 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:45:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50908 states. [2023-11-28 20:45:44,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50908 to 50728. [2023-11-28 20:45:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50728 states, 48120 states have (on average 1.0603699085619285) internal successors, (51025), 48129 states have internal predecessors, (51025), 2567 states have call successors, (2567), 35 states have call predecessors, (2567), 35 states have return successors, (2567), 2563 states have call predecessors, (2567), 2567 states have call successors, (2567) [2023-11-28 20:45:44,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50728 states to 50728 states and 56159 transitions. [2023-11-28 20:45:44,230 INFO L78 Accepts]: Start accepts. Automaton has 50728 states and 56159 transitions. Word has length 386 [2023-11-28 20:45:44,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:44,230 INFO L495 AbstractCegarLoop]: Abstraction has 50728 states and 56159 transitions. [2023-11-28 20:45:44,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-28 20:45:44,230 INFO L276 IsEmpty]: Start isEmpty. Operand 50728 states and 56159 transitions. [2023-11-28 20:45:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-28 20:45:44,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:44,242 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:44,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-28 20:45:44,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-28 20:45:44,443 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:45:44,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:44,443 INFO L85 PathProgramCache]: Analyzing trace with hash -675636843, now seen corresponding path program 11 times [2023-11-28 20:45:44,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:45:44,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736236801] [2023-11-28 20:45:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:44,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:45:44,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:45:44,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297207614] [2023-11-28 20:45:44,458 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:45:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:45:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:45:44,459 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:45:44,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-28 20:45:44,610 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-28 20:45:44,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:45:44,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 20:45:44,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2023-11-28 20:45:45,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2023-11-28 20:45:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:45:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736236801] [2023-11-28 20:45:45,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:45:45,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297207614] [2023-11-28 20:45:45,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297207614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:45:45,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:45:45,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-28 20:45:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920455565] [2023-11-28 20:45:45,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:45,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:45:45,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:45:45,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:45:45,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:45:45,818 INFO L87 Difference]: Start difference. First operand 50728 states and 56159 transitions. Second operand has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-28 20:45:57,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:57,872 INFO L93 Difference]: Finished difference Result 64835 states and 71492 transitions. [2023-11-28 20:45:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-28 20:45:57,872 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 386 [2023-11-28 20:45:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:57,959 INFO L225 Difference]: With dead ends: 64835 [2023-11-28 20:45:57,960 INFO L226 Difference]: Without dead ends: 64829 [2023-11-28 20:45:57,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2163 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1518, Invalid=5124, Unknown=0, NotChecked=0, Total=6642 [2023-11-28 20:45:57,971 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 726 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:57,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1135 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 20:45:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64829 states. [2023-11-28 20:46:02,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64829 to 56146. [2023-11-28 20:46:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.0601787524878892) internal successors, (56463), 53267 states have internal predecessors, (56463), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-28 20:46:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62157 transitions. [2023-11-28 20:46:03,074 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62157 transitions. Word has length 386 [2023-11-28 20:46:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:46:03,074 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62157 transitions. [2023-11-28 20:46:03,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-28 20:46:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62157 transitions. [2023-11-28 20:46:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-28 20:46:03,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:46:03,082 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:46:03,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-28 20:46:03,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-28 20:46:03,282 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:46:03,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:03,283 INFO L85 PathProgramCache]: Analyzing trace with hash 206190957, now seen corresponding path program 12 times [2023-11-28 20:46:03,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:46:03,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044900810] [2023-11-28 20:46:03,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:03,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:46:03,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:46:03,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236750266] [2023-11-28 20:46:03,298 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-28 20:46:03,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:46:03,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:46:03,298 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:46:03,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-28 20:46:04,033 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2023-11-28 20:46:04,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:46:04,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-28 20:46:04,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2604 backedges. 0 proven. 2030 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-11-28 20:46:05,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:05,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:46:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044900810] [2023-11-28 20:46:05,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:46:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236750266] [2023-11-28 20:46:05,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236750266] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:46:05,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:46:05,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-28 20:46:05,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152238465] [2023-11-28 20:46:05,229 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:46:05,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:46:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:46:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:46:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2023-11-28 20:46:05,231 INFO L87 Difference]: Start difference. First operand 56146 states and 62157 transitions. Second operand has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:46:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:46:10,020 INFO L93 Difference]: Finished difference Result 57229 states and 63316 transitions. [2023-11-28 20:46:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 20:46:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 386 [2023-11-28 20:46:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:46:10,103 INFO L225 Difference]: With dead ends: 57229 [2023-11-28 20:46:10,103 INFO L226 Difference]: Without dead ends: 57228 [2023-11-28 20:46:10,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=388, Invalid=802, Unknown=0, NotChecked=0, Total=1190 [2023-11-28 20:46:10,117 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 169 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:46:10,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 363 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:46:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57228 states. [2023-11-28 20:46:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57228 to 56146. [2023-11-28 20:46:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.060159975966052) internal successors, (56462), 53267 states have internal predecessors, (56462), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-28 20:46:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62156 transitions. [2023-11-28 20:46:14,672 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62156 transitions. Word has length 386 [2023-11-28 20:46:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:46:14,673 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62156 transitions. [2023-11-28 20:46:14,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:46:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62156 transitions. [2023-11-28 20:46:14,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2023-11-28 20:46:14,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:46:14,681 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:46:14,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-28 20:46:14,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-28 20:46:14,882 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:46:14,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:14,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1519897091, now seen corresponding path program 13 times [2023-11-28 20:46:14,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:46:14,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061218647] [2023-11-28 20:46:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:46:14,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:46:14,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997204145] [2023-11-28 20:46:14,902 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-28 20:46:14,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:46:14,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:46:14,903 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:46:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-28 20:46:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:46:15,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:46:15,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3307 backedges. 0 proven. 2571 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2023-11-28 20:46:15,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:46:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061218647] [2023-11-28 20:46:15,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:46:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997204145] [2023-11-28 20:46:15,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997204145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:46:15,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:46:15,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-28 20:46:15,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533675670] [2023-11-28 20:46:15,997 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:46:15,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:46:15,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:46:15,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:46:15,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:46:15,999 INFO L87 Difference]: Start difference. First operand 56146 states and 62156 transitions. Second operand has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:46:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:46:20,526 INFO L93 Difference]: Finished difference Result 57577 states and 63696 transitions. [2023-11-28 20:46:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:46:20,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 432 [2023-11-28 20:46:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:46:20,580 INFO L225 Difference]: With dead ends: 57577 [2023-11-28 20:46:20,580 INFO L226 Difference]: Without dead ends: 57576 [2023-11-28 20:46:20,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:46:20,587 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 52 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:46:20,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 389 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:46:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57576 states. [2023-11-28 20:46:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57576 to 56146. [2023-11-28 20:46:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.060141199444215) internal successors, (56461), 53267 states have internal predecessors, (56461), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-28 20:46:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62155 transitions. [2023-11-28 20:46:25,041 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62155 transitions. Word has length 432 [2023-11-28 20:46:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:46:25,041 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62155 transitions. [2023-11-28 20:46:25,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:46:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62155 transitions. [2023-11-28 20:46:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-11-28 20:46:25,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:46:25,053 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:46:25,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-28 20:46:25,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-28 20:46:25,253 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:46:25,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash 20957691, now seen corresponding path program 3 times [2023-11-28 20:46:25,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:46:25,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498898164] [2023-11-28 20:46:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:46:25,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:46:25,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131385145] [2023-11-28 20:46:25,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:46:25,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:46:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:46:25,273 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:46:25,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-28 20:46:25,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2023-11-28 20:46:25,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:46:25,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-28 20:46:25,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-28 20:46:25,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-28 20:46:26,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:46:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498898164] [2023-11-28 20:46:26,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:46:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131385145] [2023-11-28 20:46:26,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131385145] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:46:26,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:46:26,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2023-11-28 20:46:26,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586437509] [2023-11-28 20:46:26,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:46:26,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-28 20:46:26,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:46:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-28 20:46:26,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-28 20:46:26,529 INFO L87 Difference]: Start difference. First operand 56146 states and 62155 transitions. Second operand has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-28 20:46:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:46:37,815 INFO L93 Difference]: Finished difference Result 91028 states and 102179 transitions. [2023-11-28 20:46:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-28 20:46:37,816 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 447 [2023-11-28 20:46:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:46:37,903 INFO L225 Difference]: With dead ends: 91028 [2023-11-28 20:46:37,903 INFO L226 Difference]: Without dead ends: 91027 [2023-11-28 20:46:37,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-28 20:46:37,913 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1355 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:46:37,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 762 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-28 20:46:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91027 states. [2023-11-28 20:46:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91027 to 69147. [2023-11-28 20:46:43,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69147 states, 65574 states have (on average 1.0763869826455608) internal successors, (70583), 65582 states have internal predecessors, (70583), 3532 states have call successors, (3532), 35 states have call predecessors, (3532), 35 states have return successors, (3532), 3529 states have call predecessors, (3532), 3532 states have call successors, (3532) [2023-11-28 20:46:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69147 states to 69147 states and 77647 transitions. [2023-11-28 20:46:43,249 INFO L78 Accepts]: Start accepts. Automaton has 69147 states and 77647 transitions. Word has length 447 [2023-11-28 20:46:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:46:43,250 INFO L495 AbstractCegarLoop]: Abstraction has 69147 states and 77647 transitions. [2023-11-28 20:46:43,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-28 20:46:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 69147 states and 77647 transitions. [2023-11-28 20:46:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-28 20:46:43,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:46:43,259 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:46:43,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-28 20:46:43,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-28 20:46:43,460 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:46:43,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1743720643, now seen corresponding path program 14 times [2023-11-28 20:46:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:46:43,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934530690] [2023-11-28 20:46:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:46:43,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:46:43,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979636437] [2023-11-28 20:46:43,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:46:43,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:46:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:46:43,475 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:46:43,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-28 20:46:43,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:46:43,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:46:43,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 20:46:43,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 1558 proven. 2028 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-11-28 20:46:44,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 1558 proven. 2028 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-11-28 20:46:44,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:46:44,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934530690] [2023-11-28 20:46:44,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:46:44,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979636437] [2023-11-28 20:46:44,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979636437] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:46:44,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:46:44,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2023-11-28 20:46:44,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793686621] [2023-11-28 20:46:44,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:46:44,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-28 20:46:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:46:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-28 20:46:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=1251, Unknown=0, NotChecked=0, Total=1722 [2023-11-28 20:46:44,924 INFO L87 Difference]: Start difference. First operand 69147 states and 77647 transitions. Second operand has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-28 20:46:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:46:58,442 INFO L93 Difference]: Finished difference Result 192800 states and 222345 transitions. [2023-11-28 20:46:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-11-28 20:46:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 478 [2023-11-28 20:46:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:46:58,621 INFO L225 Difference]: With dead ends: 192800 [2023-11-28 20:46:58,621 INFO L226 Difference]: Without dead ends: 155837 [2023-11-28 20:46:58,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 912 SyntacticMatches, 2 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7973 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4773, Invalid=17279, Unknown=0, NotChecked=0, Total=22052 [2023-11-28 20:46:58,658 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2647 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 3313 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 3313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:46:58,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 1984 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 3313 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-28 20:46:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155837 states. [2023-11-28 20:47:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155837 to 112914. [2023-11-28 20:47:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977492081585365) internal successors, (117491), 107037 states have internal predecessors, (117491), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-28 20:47:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129179 transitions. [2023-11-28 20:47:06,561 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129179 transitions. Word has length 478 [2023-11-28 20:47:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:47:06,561 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129179 transitions. [2023-11-28 20:47:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-28 20:47:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129179 transitions. [2023-11-28 20:47:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-28 20:47:06,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:47:06,570 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:47:06,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-28 20:47:06,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-28 20:47:06,771 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:47:06,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:47:06,771 INFO L85 PathProgramCache]: Analyzing trace with hash 893109273, now seen corresponding path program 15 times [2023-11-28 20:47:06,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:47:06,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442299217] [2023-11-28 20:47:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:47:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:47:06,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:47:06,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279265569] [2023-11-28 20:47:06,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:47:06,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:47:06,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:47:06,787 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:47:06,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-28 20:47:06,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2023-11-28 20:47:06,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:47:06,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 20:47:06,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:47:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4094 backedges. 36 proven. 3231 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2023-11-28 20:47:07,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:47:07,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:47:07,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442299217] [2023-11-28 20:47:07,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:47:07,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279265569] [2023-11-28 20:47:07,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279265569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:47:07,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:47:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-28 20:47:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008727891] [2023-11-28 20:47:07,934 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:47:07,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-28 20:47:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:47:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-28 20:47:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:47:07,936 INFO L87 Difference]: Start difference. First operand 112914 states and 129179 transitions. Second operand has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:47:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:47:17,361 INFO L93 Difference]: Finished difference Result 118221 states and 134870 transitions. [2023-11-28 20:47:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-28 20:47:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 478 [2023-11-28 20:47:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:47:17,482 INFO L225 Difference]: With dead ends: 118221 [2023-11-28 20:47:17,482 INFO L226 Difference]: Without dead ends: 118220 [2023-11-28 20:47:17,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=668, Invalid=2524, Unknown=0, NotChecked=0, Total=3192 [2023-11-28 20:47:17,494 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 605 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:47:17,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 735 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:47:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118220 states. [2023-11-28 20:47:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118220 to 112914. [2023-11-28 20:47:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977398648964298) internal successors, (117490), 107037 states have internal predecessors, (117490), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-28 20:47:24,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129178 transitions. [2023-11-28 20:47:24,798 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129178 transitions. Word has length 478 [2023-11-28 20:47:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:47:24,798 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129178 transitions. [2023-11-28 20:47:24,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:47:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129178 transitions. [2023-11-28 20:47:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2023-11-28 20:47:24,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:47:24,809 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:47:24,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-28 20:47:25,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:47:25,010 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:47:25,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:47:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1283033007, now seen corresponding path program 16 times [2023-11-28 20:47:25,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:47:25,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235932967] [2023-11-28 20:47:25,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:47:25,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:47:25,025 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:47:25,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896471551] [2023-11-28 20:47:25,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:47:25,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:47:25,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:47:25,026 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:47:25,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-28 20:47:25,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:47:25,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:47:25,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 20:47:25,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:47:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4965 backedges. 0 proven. 3887 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2023-11-28 20:47:26,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:47:26,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:47:26,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235932967] [2023-11-28 20:47:26,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:47:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896471551] [2023-11-28 20:47:26,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896471551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:47:26,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:47:26,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-28 20:47:26,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715407855] [2023-11-28 20:47:26,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:47:26,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-28 20:47:26,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:47:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-28 20:47:26,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:47:26,286 INFO L87 Difference]: Start difference. First operand 112914 states and 129178 transitions. Second operand has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:47:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:47:33,971 INFO L93 Difference]: Finished difference Result 115060 states and 131512 transitions. [2023-11-28 20:47:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 20:47:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 524 [2023-11-28 20:47:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:47:34,098 INFO L225 Difference]: With dead ends: 115060 [2023-11-28 20:47:34,098 INFO L226 Difference]: Without dead ends: 115059 [2023-11-28 20:47:34,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=201, Unknown=0, NotChecked=0, Total=342 [2023-11-28 20:47:34,117 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 87 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:47:34,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 343 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:47:34,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115059 states. [2023-11-28 20:47:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115059 to 112914. [2023-11-28 20:47:41,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977305216343234) internal successors, (117489), 107037 states have internal predecessors, (117489), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-28 20:47:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129177 transitions. [2023-11-28 20:47:41,556 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129177 transitions. Word has length 524 [2023-11-28 20:47:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:47:41,556 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129177 transitions. [2023-11-28 20:47:41,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:47:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129177 transitions. [2023-11-28 20:47:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2023-11-28 20:47:41,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:47:41,568 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:47:41,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-28 20:47:41,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:47:41,769 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:47:41,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:47:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1638794161, now seen corresponding path program 4 times [2023-11-28 20:47:41,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:47:41,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200532464] [2023-11-28 20:47:41,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:47:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:47:41,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:47:41,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039493381] [2023-11-28 20:47:41,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:47:41,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:47:41,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:47:41,787 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:47:41,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-28 20:47:41,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:47:41,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:47:41,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 20:47:41,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:47:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 0 proven. 4697 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-28 20:47:42,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:47:43,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 0 proven. 4697 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-28 20:47:43,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:47:43,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200532464] [2023-11-28 20:47:43,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:47:43,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039493381] [2023-11-28 20:47:43,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039493381] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:47:43,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:47:43,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-11-28 20:47:43,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036481421] [2023-11-28 20:47:43,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:47:43,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-28 20:47:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:47:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-28 20:47:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-28 20:47:43,322 INFO L87 Difference]: Start difference. First operand 112914 states and 129177 transitions. Second operand has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-28 20:47:52,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:47:52,944 INFO L93 Difference]: Finished difference Result 134315 states and 155225 transitions. [2023-11-28 20:47:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-28 20:47:52,945 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) Word has length 536 [2023-11-28 20:47:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:47:53,103 INFO L225 Difference]: With dead ends: 134315 [2023-11-28 20:47:53,103 INFO L226 Difference]: Without dead ends: 134314 [2023-11-28 20:47:53,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-28 20:47:53,123 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1265 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:47:53,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 733 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 20:47:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134314 states. [2023-11-28 20:48:02,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134314 to 131410. [2023-11-28 20:48:02,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131410 states, 124555 states have (on average 1.1063867367829472) internal successors, (137806), 124562 states have internal predecessors, (137806), 6814 states have call successors, (6814), 35 states have call predecessors, (6814), 35 states have return successors, (6814), 6812 states have call predecessors, (6814), 6814 states have call successors, (6814) [2023-11-28 20:48:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131410 states to 131410 states and 151434 transitions. [2023-11-28 20:48:02,966 INFO L78 Accepts]: Start accepts. Automaton has 131410 states and 151434 transitions. Word has length 536 [2023-11-28 20:48:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:48:02,967 INFO L495 AbstractCegarLoop]: Abstraction has 131410 states and 151434 transitions. [2023-11-28 20:48:02,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-28 20:48:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 131410 states and 151434 transitions. [2023-11-28 20:48:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-11-28 20:48:02,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:48:02,980 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 20, 20, 20, 20, 20, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:48:02,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-28 20:48:03,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:03,181 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:48:03,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:48:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1202238234, now seen corresponding path program 17 times [2023-11-28 20:48:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:48:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778887181] [2023-11-28 20:48:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:48:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:48:03,196 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:48:03,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894591566] [2023-11-28 20:48:03,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:48:03,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:03,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:48:03,197 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:48:03,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-28 20:48:03,371 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-28 20:48:03,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:48:03,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 20:48:03,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:48:03,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 3074 proven. 979 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-28 20:48:03,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:48:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 3074 proven. 979 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-28 20:48:04,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:48:04,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778887181] [2023-11-28 20:48:04,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:48:04,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894591566] [2023-11-28 20:48:04,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894591566] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:48:04,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:48:04,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 26 [2023-11-28 20:48:04,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782520676] [2023-11-28 20:48:04,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:48:04,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:48:04,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:48:04,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:48:04,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:48:04,152 INFO L87 Difference]: Start difference. First operand 131410 states and 151434 transitions. Second operand has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-28 20:48:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:48:14,888 INFO L93 Difference]: Finished difference Result 156811 states and 180510 transitions. [2023-11-28 20:48:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-28 20:48:14,888 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) Word has length 547 [2023-11-28 20:48:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:48:15,019 INFO L225 Difference]: With dead ends: 156811 [2023-11-28 20:48:15,019 INFO L226 Difference]: Without dead ends: 115396 [2023-11-28 20:48:15,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1128 GetRequests, 1080 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=473, Invalid=1419, Unknown=0, NotChecked=0, Total=1892 [2023-11-28 20:48:15,045 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 588 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:48:15,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 2106 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-28 20:48:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115396 states. [2023-11-28 20:48:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115396 to 111017. [2023-11-28 20:48:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.1094642772258403) internal successors, (116699), 105192 states have internal predecessors, (116699), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-28 20:48:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128281 transitions. [2023-11-28 20:48:23,048 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128281 transitions. Word has length 547 [2023-11-28 20:48:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:48:23,049 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128281 transitions. [2023-11-28 20:48:23,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-28 20:48:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128281 transitions. [2023-11-28 20:48:23,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2023-11-28 20:48:23,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:48:23,059 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:48:23,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-28 20:48:23,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:23,260 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:48:23,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:48:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash 564950213, now seen corresponding path program 18 times [2023-11-28 20:48:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:48:23,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189756907] [2023-11-28 20:48:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:48:23,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:48:23,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:48:23,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241020070] [2023-11-28 20:48:23,276 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-28 20:48:23,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:23,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:48:23,276 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:48:23,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-28 20:48:23,616 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2023-11-28 20:48:23,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:48:23,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-28 20:48:23,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:48:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 5920 backedges. 107 proven. 4999 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2023-11-28 20:48:26,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:48:26,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:48:26,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189756907] [2023-11-28 20:48:26,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:48:26,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241020070] [2023-11-28 20:48:26,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241020070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:48:26,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:48:26,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2023-11-28 20:48:26,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958898194] [2023-11-28 20:48:26,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:48:26,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-28 20:48:26,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:48:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-28 20:48:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1958, Unknown=0, NotChecked=0, Total=2256 [2023-11-28 20:48:26,766 INFO L87 Difference]: Start difference. First operand 111017 states and 128281 transitions. Second operand has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-28 20:48:38,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:48:38,965 INFO L93 Difference]: Finished difference Result 114471 states and 132134 transitions. [2023-11-28 20:48:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-28 20:48:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 570 [2023-11-28 20:48:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:48:39,089 INFO L225 Difference]: With dead ends: 114471 [2023-11-28 20:48:39,089 INFO L226 Difference]: Without dead ends: 114470 [2023-11-28 20:48:39,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=392, Invalid=2914, Unknown=0, NotChecked=0, Total=3306 [2023-11-28 20:48:39,106 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 114 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 10776 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 10784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 10776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:48:39,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 4915 Invalid, 10784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 10776 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-28 20:48:39,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114470 states. [2023-11-28 20:48:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114470 to 111017. [2023-11-28 20:48:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.109454770166849) internal successors, (116698), 105192 states have internal predecessors, (116698), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-28 20:48:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128280 transitions. [2023-11-28 20:48:46,631 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128280 transitions. Word has length 570 [2023-11-28 20:48:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:48:46,632 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128280 transitions. [2023-11-28 20:48:46,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-28 20:48:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128280 transitions. [2023-11-28 20:48:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2023-11-28 20:48:46,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:48:46,642 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 20, 20, 20, 20, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:48:46,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-28 20:48:46,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:46,843 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:48:46,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:48:46,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1023374586, now seen corresponding path program 19 times [2023-11-28 20:48:46,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:48:46,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460721942] [2023-11-28 20:48:46,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:48:46,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:48:46,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:48:46,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003597702] [2023-11-28 20:48:46,860 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-28 20:48:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:48:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:48:46,861 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:48:46,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-28 20:48:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:48:47,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 20:48:47,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:48:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6654 backedges. 0 proven. 4754 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2023-11-28 20:48:48,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:48:48,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:48:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460721942] [2023-11-28 20:48:48,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:48:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003597702] [2023-11-28 20:48:48,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003597702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:48:48,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:48:48,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-28 20:48:48,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398213332] [2023-11-28 20:48:48,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:48:48,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:48:48,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:48:48,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:48:48,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:48:48,244 INFO L87 Difference]: Start difference. First operand 111017 states and 128280 transitions. Second operand has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:48:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:48:56,818 INFO L93 Difference]: Finished difference Result 114441 states and 132165 transitions. [2023-11-28 20:48:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 20:48:56,819 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 593 [2023-11-28 20:48:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:48:56,940 INFO L225 Difference]: With dead ends: 114441 [2023-11-28 20:48:56,940 INFO L226 Difference]: Without dead ends: 114440 [2023-11-28 20:48:56,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:48:56,951 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 70 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:48:56,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 555 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:48:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114440 states. [2023-11-28 20:49:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114440 to 111017. [2023-11-28 20:49:04,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.1094452631078575) internal successors, (116697), 105192 states have internal predecessors, (116697), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-28 20:49:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128279 transitions. [2023-11-28 20:49:04,323 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128279 transitions. Word has length 593 [2023-11-28 20:49:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:49:04,323 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128279 transitions. [2023-11-28 20:49:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:49:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128279 transitions. [2023-11-28 20:49:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2023-11-28 20:49:04,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:49:04,337 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 24, 24, 24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:49:04,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-28 20:49:04,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:49:04,538 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:49:04,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:49:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1363742493, now seen corresponding path program 20 times [2023-11-28 20:49:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:49:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656110832] [2023-11-28 20:49:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:49:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:49:04,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:49:04,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787206050] [2023-11-28 20:49:04,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:49:04,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:49:04,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:49:04,556 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:49:04,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-28 20:49:04,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:49:04,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:49:04,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-28 20:49:04,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:49:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 7443 backedges. 0 proven. 4705 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-11-28 20:49:06,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:49:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 7443 backedges. 0 proven. 4705 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-11-28 20:49:07,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:49:07,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656110832] [2023-11-28 20:49:07,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:49:07,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787206050] [2023-11-28 20:49:07,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787206050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:49:07,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:49:07,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2023-11-28 20:49:07,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921226960] [2023-11-28 20:49:07,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:49:07,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-28 20:49:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:49:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-28 20:49:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 20:49:07,260 INFO L87 Difference]: Start difference. First operand 111017 states and 128279 transitions. Second operand has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-11-28 20:49:26,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:49:26,101 INFO L93 Difference]: Finished difference Result 121268 states and 140103 transitions. [2023-11-28 20:49:26,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-11-28 20:49:26,102 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 616 [2023-11-28 20:49:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:49:26,240 INFO L225 Difference]: With dead ends: 121268 [2023-11-28 20:49:26,240 INFO L226 Difference]: Without dead ends: 121208 [2023-11-28 20:49:26,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 1198 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=3289, Invalid=9593, Unknown=0, NotChecked=0, Total=12882 [2023-11-28 20:49:26,254 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1605 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 4951 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 5340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 4951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:49:26,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 2749 Invalid, 5340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 4951 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-28 20:49:26,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121208 states. [2023-11-28 20:49:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121208 to 117308. [2023-11-28 20:49:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117308 states, 111146 states have (on average 1.1101704064923614) internal successors, (123391), 111161 states have internal predecessors, (123391), 6121 states have call successors, (6121), 35 states have call predecessors, (6121), 35 states have return successors, (6121), 6111 states have call predecessors, (6121), 6121 states have call successors, (6121) [2023-11-28 20:49:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117308 states to 117308 states and 135633 transitions. [2023-11-28 20:49:34,176 INFO L78 Accepts]: Start accepts. Automaton has 117308 states and 135633 transitions. Word has length 616 [2023-11-28 20:49:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:49:34,177 INFO L495 AbstractCegarLoop]: Abstraction has 117308 states and 135633 transitions. [2023-11-28 20:49:34,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-11-28 20:49:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 117308 states and 135633 transitions. [2023-11-28 20:49:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2023-11-28 20:49:34,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:49:34,191 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:49:34,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-28 20:49:34,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-28 20:49:34,391 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:49:34,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:49:34,392 INFO L85 PathProgramCache]: Analyzing trace with hash -582489253, now seen corresponding path program 21 times [2023-11-28 20:49:34,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:49:34,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121534569] [2023-11-28 20:49:34,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:49:34,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:49:34,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:49:34,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744462435] [2023-11-28 20:49:34,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:49:34,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:49:34,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:49:34,410 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:49:34,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-28 20:49:34,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2023-11-28 20:49:34,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:49:34,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-28 20:49:34,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:49:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6959 backedges. 39 proven. 5511 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-11-28 20:49:35,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:49:35,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:49:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121534569] [2023-11-28 20:49:35,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:49:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744462435] [2023-11-28 20:49:35,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744462435] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:49:35,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:49:35,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-28 20:49:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679194142] [2023-11-28 20:49:35,506 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:49:35,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:49:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:49:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:49:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:49:35,507 INFO L87 Difference]: Start difference. First operand 117308 states and 135633 transitions. Second operand has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 20:49:50,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:49:50,537 INFO L93 Difference]: Finished difference Result 132366 states and 152455 transitions. [2023-11-28 20:49:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-28 20:49:50,537 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 616 [2023-11-28 20:49:50,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:49:50,669 INFO L225 Difference]: With dead ends: 132366 [2023-11-28 20:49:50,669 INFO L226 Difference]: Without dead ends: 129780 [2023-11-28 20:49:50,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1140, Invalid=4116, Unknown=0, NotChecked=0, Total=5256 [2023-11-28 20:49:50,681 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 747 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:49:50,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 661 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-28 20:49:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129780 states. [2023-11-28 20:49:58,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129780 to 116928. [2023-11-28 20:49:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116928 states, 110786 states have (on average 1.110456194826061) internal successors, (123023), 110801 states have internal predecessors, (123023), 6101 states have call successors, (6101), 35 states have call predecessors, (6101), 35 states have return successors, (6101), 6091 states have call predecessors, (6101), 6101 states have call successors, (6101) [2023-11-28 20:49:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116928 states to 116928 states and 135225 transitions. [2023-11-28 20:49:58,573 INFO L78 Accepts]: Start accepts. Automaton has 116928 states and 135225 transitions. Word has length 616 [2023-11-28 20:49:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:49:58,574 INFO L495 AbstractCegarLoop]: Abstraction has 116928 states and 135225 transitions. [2023-11-28 20:49:58,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-28 20:49:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 116928 states and 135225 transitions. [2023-11-28 20:49:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-11-28 20:49:58,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:49:58,591 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:49:58,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-28 20:49:58,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:49:58,791 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:49:58,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:49:58,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1529394319, now seen corresponding path program 22 times [2023-11-28 20:49:58,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:49:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547106803] [2023-11-28 20:49:58,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:49:58,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:49:58,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:49:58,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661517571] [2023-11-28 20:49:58,810 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:49:58,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:49:58,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:49:58,811 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:49:58,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-28 20:49:58,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:49:58,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:49:58,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 20:49:58,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:50:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8082 backedges. 0 proven. 6371 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2023-11-28 20:50:00,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:50:00,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:50:00,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547106803] [2023-11-28 20:50:00,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:50:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661517571] [2023-11-28 20:50:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661517571] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:50:00,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:50:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-28 20:50:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687101266] [2023-11-28 20:50:00,412 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:50:00,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-28 20:50:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:50:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-28 20:50:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2023-11-28 20:50:00,414 INFO L87 Difference]: Start difference. First operand 116928 states and 135225 transitions. Second operand has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-28 20:50:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:50:08,865 INFO L93 Difference]: Finished difference Result 118537 states and 137077 transitions. [2023-11-28 20:50:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 20:50:08,866 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 662 [2023-11-28 20:50:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:50:08,990 INFO L225 Difference]: With dead ends: 118537 [2023-11-28 20:50:08,991 INFO L226 Difference]: Without dead ends: 118536 [2023-11-28 20:50:09,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:50:09,007 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 35 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:50:09,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 426 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:50:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118536 states. [2023-11-28 20:50:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118536 to 116928. [2023-11-28 20:50:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116928 states, 110786 states have (on average 1.1104471684147816) internal successors, (123022), 110801 states have internal predecessors, (123022), 6101 states have call successors, (6101), 35 states have call predecessors, (6101), 35 states have return successors, (6101), 6091 states have call predecessors, (6101), 6101 states have call successors, (6101) [2023-11-28 20:50:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116928 states to 116928 states and 135224 transitions. [2023-11-28 20:50:16,826 INFO L78 Accepts]: Start accepts. Automaton has 116928 states and 135224 transitions. Word has length 662 [2023-11-28 20:50:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:50:16,827 INFO L495 AbstractCegarLoop]: Abstraction has 116928 states and 135224 transitions. [2023-11-28 20:50:16,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-28 20:50:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 116928 states and 135224 transitions. [2023-11-28 20:50:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2023-11-28 20:50:16,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:50:16,846 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 24, 24, 24, 24, 24, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:50:16,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-28 20:50:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:50:17,047 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:50:17,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:50:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1167625507, now seen corresponding path program 23 times [2023-11-28 20:50:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:50:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754151598] [2023-11-28 20:50:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:50:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:50:17,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:50:17,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89559717] [2023-11-28 20:50:17,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:50:17,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:50:17,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:50:17,071 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:50:17,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-28 20:50:17,352 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2023-11-28 20:50:17,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:50:17,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-28 20:50:17,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:50:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9613 backedges. 0 proven. 6999 refuted. 0 times theorem prover too weak. 2614 trivial. 0 not checked. [2023-11-28 20:50:18,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:50:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:50:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754151598] [2023-11-28 20:50:18,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:50:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89559717] [2023-11-28 20:50:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89559717] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:50:18,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:50:18,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-28 20:50:18,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666974803] [2023-11-28 20:50:18,609 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:50:18,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:50:18,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:50:18,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:50:18,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:50:18,610 INFO L87 Difference]: Start difference. First operand 116928 states and 135224 transitions. Second operand has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:50:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:50:28,181 INFO L93 Difference]: Finished difference Result 121277 states and 140125 transitions. [2023-11-28 20:50:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 20:50:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 708 [2023-11-28 20:50:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:50:28,302 INFO L225 Difference]: With dead ends: 121277 [2023-11-28 20:50:28,302 INFO L226 Difference]: Without dead ends: 120376 [2023-11-28 20:50:28,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2023-11-28 20:50:28,316 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 204 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:50:28,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 763 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 20:50:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120376 states. [2023-11-28 20:50:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120376 to 116483. [2023-11-28 20:50:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116483 states, 110364 states have (on average 1.1108332427240768) internal successors, (122596), 110379 states have internal predecessors, (122596), 6078 states have call successors, (6078), 35 states have call predecessors, (6078), 35 states have return successors, (6078), 6068 states have call predecessors, (6078), 6078 states have call successors, (6078) [2023-11-28 20:50:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116483 states to 116483 states and 134752 transitions. [2023-11-28 20:50:36,128 INFO L78 Accepts]: Start accepts. Automaton has 116483 states and 134752 transitions. Word has length 708 [2023-11-28 20:50:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:50:36,128 INFO L495 AbstractCegarLoop]: Abstraction has 116483 states and 134752 transitions. [2023-11-28 20:50:36,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-28 20:50:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 116483 states and 134752 transitions. [2023-11-28 20:50:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2023-11-28 20:50:36,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:50:36,147 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:50:36,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-28 20:50:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-28 20:50:36,348 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:50:36,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:50:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1895691527, now seen corresponding path program 24 times [2023-11-28 20:50:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:50:36,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404343950] [2023-11-28 20:50:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:50:36,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:50:36,370 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:50:36,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005879896] [2023-11-28 20:50:36,371 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-28 20:50:36,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:50:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:50:36,372 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:50:36,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-28 20:50:36,680 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2023-11-28 20:50:36,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:50:36,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-28 20:50:36,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:50:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9289 backedges. 0 proven. 7335 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-11-28 20:50:38,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:50:44,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:50:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404343950] [2023-11-28 20:50:44,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:50:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005879896] [2023-11-28 20:50:44,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005879896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:50:44,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:50:44,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-28 20:50:44,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372925150] [2023-11-28 20:50:44,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:50:44,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:50:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:50:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:50:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2023-11-28 20:50:44,004 INFO L87 Difference]: Start difference. First operand 116483 states and 134752 transitions. Second operand has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-28 20:50:53,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:50:53,514 INFO L93 Difference]: Finished difference Result 118933 states and 137571 transitions. [2023-11-28 20:50:53,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 20:50:53,515 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 708 [2023-11-28 20:50:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:50:53,642 INFO L225 Difference]: With dead ends: 118933 [2023-11-28 20:50:53,642 INFO L226 Difference]: Without dead ends: 118932 [2023-11-28 20:50:53,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1286 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2023-11-28 20:50:53,660 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 51 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:50:53,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4028 Invalid, 3635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3635 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:50:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118932 states. [2023-11-28 20:51:01,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118932 to 116483. [2023-11-28 20:51:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116483 states, 110364 states have (on average 1.1108241817984126) internal successors, (122595), 110379 states have internal predecessors, (122595), 6078 states have call successors, (6078), 35 states have call predecessors, (6078), 35 states have return successors, (6078), 6068 states have call predecessors, (6078), 6078 states have call successors, (6078) [2023-11-28 20:51:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116483 states to 116483 states and 134751 transitions. [2023-11-28 20:51:01,628 INFO L78 Accepts]: Start accepts. Automaton has 116483 states and 134751 transitions. Word has length 708 [2023-11-28 20:51:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:51:01,629 INFO L495 AbstractCegarLoop]: Abstraction has 116483 states and 134751 transitions. [2023-11-28 20:51:01,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-28 20:51:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 116483 states and 134751 transitions. [2023-11-28 20:51:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2023-11-28 20:51:01,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:51:01,648 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:51:01,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-28 20:51:01,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:51:01,848 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:51:01,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:51:01,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1319470940, now seen corresponding path program 4 times [2023-11-28 20:51:01,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:51:01,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925555362] [2023-11-28 20:51:01,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:51:01,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:51:01,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:51:01,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904156063] [2023-11-28 20:51:01,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:51:01,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:51:01,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:51:01,869 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:51:01,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-28 20:51:02,044 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:51:02,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:51:02,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-28 20:51:02,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:51:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10827 backedges. 99 proven. 9116 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2023-11-28 20:51:03,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:51:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10827 backedges. 99 proven. 9116 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2023-11-28 20:51:05,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:51:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925555362] [2023-11-28 20:51:05,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:51:05,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904156063] [2023-11-28 20:51:05,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904156063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:51:05,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:51:05,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 74 [2023-11-28 20:51:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689383952] [2023-11-28 20:51:05,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:51:05,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-11-28 20:51:05,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:51:05,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-11-28 20:51:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1628, Invalid=3922, Unknown=0, NotChecked=0, Total=5550 [2023-11-28 20:51:05,114 INFO L87 Difference]: Start difference. First operand 116483 states and 134751 transitions. Second operand has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-28 20:51:35,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:51:35,590 INFO L93 Difference]: Finished difference Result 249532 states and 289159 transitions. [2023-11-28 20:51:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2023-11-28 20:51:35,591 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) Word has length 733 [2023-11-28 20:51:35,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:51:35,881 INFO L225 Difference]: With dead ends: 249532 [2023-11-28 20:51:35,881 INFO L226 Difference]: Without dead ends: 249410 [2023-11-28 20:51:35,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1618 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18056 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=16798, Invalid=35414, Unknown=0, NotChecked=0, Total=52212 [2023-11-28 20:51:35,912 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1666 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-28 20:51:35,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 762 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-28 20:51:36,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249410 states. [2023-11-28 20:52:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249410 to 246029. [2023-11-28 20:52:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246029 states, 233327 states have (on average 1.0611288020674847) internal successors, (247590), 233361 states have internal predecessors, (247590), 12661 states have call successors, (12661), 35 states have call predecessors, (12661), 35 states have return successors, (12661), 12632 states have call predecessors, (12661), 12661 states have call successors, (12661) [2023-11-28 20:52:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246029 states to 246029 states and 272912 transitions. [2023-11-28 20:52:01,269 INFO L78 Accepts]: Start accepts. Automaton has 246029 states and 272912 transitions. Word has length 733 [2023-11-28 20:52:01,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:52:01,269 INFO L495 AbstractCegarLoop]: Abstraction has 246029 states and 272912 transitions. [2023-11-28 20:52:01,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-28 20:52:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 246029 states and 272912 transitions. [2023-11-28 20:52:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-28 20:52:01,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:52:01,294 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 29, 29, 29, 29, 29, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:52:01,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-28 20:52:01,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:52:01,495 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:52:01,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:52:01,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1182312077, now seen corresponding path program 25 times [2023-11-28 20:52:01,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:52:01,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618113694] [2023-11-28 20:52:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:52:01,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:52:01,515 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:52:01,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879409584] [2023-11-28 20:52:01,515 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-28 20:52:01,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:52:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:52:01,516 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:52:01,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-28 20:52:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:52:01,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 20:52:01,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:52:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 6428 proven. 2958 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2023-11-28 20:52:02,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:52:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 5600 proven. 2958 refuted. 0 times theorem prover too weak. 2698 trivial. 0 not checked. [2023-11-28 20:52:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:52:03,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618113694] [2023-11-28 20:52:03,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:52:03,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879409584] [2023-11-28 20:52:03,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879409584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:52:03,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:52:03,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 40 [2023-11-28 20:52:03,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285432317] [2023-11-28 20:52:03,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:52:03,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-28 20:52:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:52:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-28 20:52:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1168, Unknown=0, NotChecked=0, Total=1560 [2023-11-28 20:52:03,293 INFO L87 Difference]: Start difference. First operand 246029 states and 272912 transitions. Second operand has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-28 20:52:33,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:52:33,440 INFO L93 Difference]: Finished difference Result 377424 states and 424764 transitions. [2023-11-28 20:52:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-28 20:52:33,441 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) Word has length 754 [2023-11-28 20:52:33,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:52:33,795 INFO L225 Difference]: With dead ends: 377424 [2023-11-28 20:52:33,795 INFO L226 Difference]: Without dead ends: 222367 [2023-11-28 20:52:33,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1534 GetRequests, 1458 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1053, Invalid=3503, Unknown=0, NotChecked=0, Total=4556 [2023-11-28 20:52:33,862 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 861 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:52:33,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 3595 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-28 20:52:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222367 states. [2023-11-28 20:52:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222367 to 191447. [2023-11-28 20:52:55,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191447 states, 181477 states have (on average 1.0727860830849087) internal successors, (194686), 181505 states have internal predecessors, (194686), 9929 states have call successors, (9929), 35 states have call predecessors, (9929), 35 states have return successors, (9929), 9906 states have call predecessors, (9929), 9929 states have call successors, (9929) [2023-11-28 20:52:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191447 states to 191447 states and 214544 transitions. [2023-11-28 20:52:55,899 INFO L78 Accepts]: Start accepts. Automaton has 191447 states and 214544 transitions. Word has length 754 [2023-11-28 20:52:55,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:52:55,899 INFO L495 AbstractCegarLoop]: Abstraction has 191447 states and 214544 transitions. [2023-11-28 20:52:55,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-28 20:52:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 191447 states and 214544 transitions. [2023-11-28 20:52:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-28 20:52:55,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:52:55,925 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 27, 27, 27, 27, 27, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:52:55,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-28 20:52:56,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:52:56,125 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:52:56,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:52:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1357086431, now seen corresponding path program 26 times [2023-11-28 20:52:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:52:56,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988826477] [2023-11-28 20:52:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:52:56,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:52:56,338 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:52:56,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444634722] [2023-11-28 20:52:56,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:52:56,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:52:56,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:52:56,353 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:52:56,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-28 20:52:56,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:52:56,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:52:56,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:52:56,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:52:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 11064 backedges. 6511 proven. 1894 refuted. 0 times theorem prover too weak. 2659 trivial. 0 not checked. [2023-11-28 20:52:57,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:52:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 11064 backedges. 4799 proven. 2646 refuted. 0 times theorem prover too weak. 3619 trivial. 0 not checked. [2023-11-28 20:52:57,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:52:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988826477] [2023-11-28 20:52:57,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:52:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444634722] [2023-11-28 20:52:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444634722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:52:57,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:52:57,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2023-11-28 20:52:57,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802720734] [2023-11-28 20:52:57,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:52:57,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-28 20:52:57,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:52:57,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-28 20:52:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:52:57,587 INFO L87 Difference]: Start difference. First operand 191447 states and 214544 transitions. Second operand has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-28 20:53:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:53:24,001 INFO L93 Difference]: Finished difference Result 210917 states and 235520 transitions. [2023-11-28 20:53:24,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 20:53:24,001 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 754 [2023-11-28 20:53:24,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:53:24,206 INFO L225 Difference]: With dead ends: 210917 [2023-11-28 20:53:24,206 INFO L226 Difference]: Without dead ends: 192042 [2023-11-28 20:53:24,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1513 GetRequests, 1478 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2023-11-28 20:53:24,233 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 191 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:53:24,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1362 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-28 20:53:24,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192042 states. [2023-11-28 20:53:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192042 to 185558. [2023-11-28 20:53:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185558 states, 175893 states have (on average 1.0740165896311962) internal successors, (188912), 175915 states have internal predecessors, (188912), 9624 states have call successors, (9624), 35 states have call predecessors, (9624), 35 states have return successors, (9624), 9607 states have call predecessors, (9624), 9624 states have call successors, (9624) [2023-11-28 20:53:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185558 states to 185558 states and 208160 transitions. [2023-11-28 20:53:45,015 INFO L78 Accepts]: Start accepts. Automaton has 185558 states and 208160 transitions. Word has length 754 [2023-11-28 20:53:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:53:45,016 INFO L495 AbstractCegarLoop]: Abstraction has 185558 states and 208160 transitions. [2023-11-28 20:53:45,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-28 20:53:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 185558 states and 208160 transitions. [2023-11-28 20:53:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-28 20:53:45,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:53:45,034 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:53:45,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-28 20:53:45,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-28 20:53:45,235 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:53:45,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:53:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1668761629, now seen corresponding path program 27 times [2023-11-28 20:53:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:53:45,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626133392] [2023-11-28 20:53:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:53:45,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:53:45,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:53:45,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295643549] [2023-11-28 20:53:45,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:53:45,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:53:45,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:53:45,267 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:53:45,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-28 20:53:45,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2023-11-28 20:53:45,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:53:45,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-28 20:53:45,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:53:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10580 backedges. 90 proven. 8385 refuted. 0 times theorem prover too weak. 2105 trivial. 0 not checked. [2023-11-28 20:53:46,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:53:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:53:46,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626133392] [2023-11-28 20:53:46,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:53:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295643549] [2023-11-28 20:53:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295643549] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:53:46,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:53:46,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-28 20:53:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093057095] [2023-11-28 20:53:46,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 20:53:46,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-28 20:53:46,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:53:46,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-28 20:53:46,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2023-11-28 20:53:46,971 INFO L87 Difference]: Start difference. First operand 185558 states and 208160 transitions. Second operand has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-28 20:54:22,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:54:22,040 INFO L93 Difference]: Finished difference Result 209467 states and 234084 transitions. [2023-11-28 20:54:22,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-28 20:54:22,041 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 754 [2023-11-28 20:54:22,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:54:22,282 INFO L225 Difference]: With dead ends: 209467 [2023-11-28 20:54:22,282 INFO L226 Difference]: Without dead ends: 209466 [2023-11-28 20:54:22,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2907 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2114, Invalid=7588, Unknown=0, NotChecked=0, Total=9702 [2023-11-28 20:54:22,305 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 1491 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:54:22,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 900 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-28 20:54:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209466 states. [2023-11-28 20:54:43,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209466 to 185558. [2023-11-28 20:54:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185558 states, 175893 states have (on average 1.074010904356626) internal successors, (188911), 175915 states have internal predecessors, (188911), 9624 states have call successors, (9624), 35 states have call predecessors, (9624), 35 states have return successors, (9624), 9607 states have call predecessors, (9624), 9624 states have call successors, (9624) [2023-11-28 20:54:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185558 states to 185558 states and 208159 transitions. [2023-11-28 20:54:43,736 INFO L78 Accepts]: Start accepts. Automaton has 185558 states and 208159 transitions. Word has length 754 [2023-11-28 20:54:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:54:43,737 INFO L495 AbstractCegarLoop]: Abstraction has 185558 states and 208159 transitions. [2023-11-28 20:54:43,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-28 20:54:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 185558 states and 208159 transitions. [2023-11-28 20:54:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-11-28 20:54:43,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:54:43,759 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:54:43,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-28 20:54:43,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-28 20:54:43,960 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:54:43,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:54:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460847, now seen corresponding path program 3 times [2023-11-28 20:54:43,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:54:43,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319539458] [2023-11-28 20:54:43,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:54:43,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:54:43,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:54:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004279350] [2023-11-28 20:54:43,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:54:43,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:54:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:54:43,982 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:54:43,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-28 20:54:44,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2023-11-28 20:54:44,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:54:44,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-28 20:54:44,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:54:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11887 backedges. 0 proven. 11883 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:54:46,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:54:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11887 backedges. 0 proven. 9639 refuted. 0 times theorem prover too weak. 2248 trivial. 0 not checked. [2023-11-28 20:54:50,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:54:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319539458] [2023-11-28 20:54:50,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:54:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004279350] [2023-11-28 20:54:50,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004279350] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:54:50,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:54:50,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 72] total 142 [2023-11-28 20:54:50,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809794167] [2023-11-28 20:54:50,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:54:50,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2023-11-28 20:54:50,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:54:50,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2023-11-28 20:54:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2023-11-28 20:54:50,301 INFO L87 Difference]: Start difference. First operand 185558 states and 208159 transitions. Second operand has 142 states, 142 states have (on average 9.5) internal successors, (1349), 142 states have internal predecessors, (1349), 70 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 70 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-28 20:55:38,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:55:38,826 INFO L93 Difference]: Finished difference Result 293073 states and 326847 transitions. [2023-11-28 20:55:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2023-11-28 20:55:38,827 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 142 states have (on average 9.5) internal successors, (1349), 142 states have internal predecessors, (1349), 70 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 70 states have call predecessors, (72), 70 states have call successors, (72) Word has length 800 [2023-11-28 20:55:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:55:39,223 INFO L225 Difference]: With dead ends: 293073 [2023-11-28 20:55:39,223 INFO L226 Difference]: Without dead ends: 293065 [2023-11-28 20:55:39,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1737 GetRequests, 1458 SyntacticMatches, 0 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17719 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=24849, Invalid=53831, Unknown=0, NotChecked=0, Total=78680 [2023-11-28 20:55:39,274 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1732 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:55:39,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 2032 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:55:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293065 states. [2023-11-28 20:56:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293065 to 292720. [2023-11-28 20:56:18,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292720 states, 277579 states have (on average 1.0583005198520061) internal successors, (293762), 277600 states have internal predecessors, (293762), 15064 states have call successors, (15064), 71 states have call predecessors, (15064), 71 states have return successors, (15064), 15048 states have call predecessors, (15064), 15064 states have call successors, (15064) [2023-11-28 20:56:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292720 states to 292720 states and 323890 transitions. [2023-11-28 20:56:19,595 INFO L78 Accepts]: Start accepts. Automaton has 292720 states and 323890 transitions. Word has length 800 [2023-11-28 20:56:19,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:56:19,596 INFO L495 AbstractCegarLoop]: Abstraction has 292720 states and 323890 transitions. [2023-11-28 20:56:19,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 142 states have (on average 9.5) internal successors, (1349), 142 states have internal predecessors, (1349), 70 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 70 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-28 20:56:19,596 INFO L276 IsEmpty]: Start isEmpty. Operand 292720 states and 323890 transitions. [2023-11-28 20:56:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-11-28 20:56:19,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:56:19,861 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:56:19,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-28 20:56:20,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-28 20:56:20,062 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-28 20:56:20,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:56:20,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460429, now seen corresponding path program 28 times [2023-11-28 20:56:20,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:56:20,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20129828] [2023-11-28 20:56:20,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:56:20,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:56:20,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:56:20,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103270828] [2023-11-28 20:56:20,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:56:20,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:56:20,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:56:20,095 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:56:20,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35fcaef3-0203-4fe4-bf35-dc7b3e148462/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-28 20:56:20,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:56:20,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:56:20,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-28 20:56:20,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:56:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11955 backedges. 0 proven. 9467 refuted. 0 times theorem prover too weak. 2488 trivial. 0 not checked. [2023-11-28 20:56:22,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:56:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 11955 backedges. 0 proven. 9467 refuted. 0 times theorem prover too weak. 2488 trivial. 0 not checked. [2023-11-28 20:56:27,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:56:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20129828] [2023-11-28 20:56:27,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:56:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103270828] [2023-11-28 20:56:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103270828] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:56:27,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:56:27,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2023-11-28 20:56:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716917120] [2023-11-28 20:56:27,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:56:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-28 20:56:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:56:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-28 20:56:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=1311, Unknown=0, NotChecked=0, Total=1722 [2023-11-28 20:56:27,023 INFO L87 Difference]: Start difference. First operand 292720 states and 323890 transitions. Second operand has 42 states, 41 states have (on average 20.21951219512195) internal successors, (829), 42 states have internal predecessors, (829), 37 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38)