./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:03,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:03,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:32:03,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:03,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:03,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:03,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:03,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:03,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:03,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:03,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:03,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:03,717 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:03,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:03,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:03,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:03,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:03,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:03,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:03,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:03,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:03,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:03,726 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:03,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:03,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:03,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:03,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:03,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:03,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:03,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:03,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:03,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:03,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:03,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:03,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:03,733 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:03,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:03,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:03,733 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:03,734 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_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c [2023-11-06 22:32:04,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:04,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:04,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:04,032 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:04,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:04,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:07,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:07,430 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:07,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:07,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/997580c84/bddcf62bcedb43d9841b12af1afbb220/FLAGb7d86911d [2023-11-06 22:32:07,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/997580c84/bddcf62bcedb43d9841b12af1afbb220 [2023-11-06 22:32:07,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:07,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:07,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:07,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:07,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:07,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52580ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07, skipping insertion in model container [2023-11-06 22:32:07,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:07,683 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928] [2023-11-06 22:32:07,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:07,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:07,753 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928] [2023-11-06 22:32:07,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:07,803 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:07,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07 WrapperNode [2023-11-06 22:32:07,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:07,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:07,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:07,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:07,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,876 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2023-11-06 22:32:07,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:07,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:07,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:07,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:07,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:07,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:07,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:07,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:07,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (1/1) ... [2023-11-06 22:32:07,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:07,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:08,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:32:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:32:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:08,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:08,151 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:08,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:08,515 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:08,523 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:08,523 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:32:08,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:08 BoogieIcfgContainer [2023-11-06 22:32:08,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:08,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:08,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:08,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:08,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:07" (1/3) ... [2023-11-06 22:32:08,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cfbb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:08, skipping insertion in model container [2023-11-06 22:32:08,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:07" (2/3) ... [2023-11-06 22:32:08,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cfbb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:08, skipping insertion in model container [2023-11-06 22:32:08,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:08" (3/3) ... [2023-11-06 22:32:08,536 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:08,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:08,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:32:08,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:08,613 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=LoopsAndPotentialCycles, 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;@231479fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:08,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:32:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 40 states have (on average 1.45) internal successors, (58), 41 states have internal predecessors, (58), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:32:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:32:08,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:08,630 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:08,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:08,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:08,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1147895282, now seen corresponding path program 1 times [2023-11-06 22:32:08,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:08,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497098435] [2023-11-06 22:32:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:08,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:08,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497098435] [2023-11-06 22:32:08,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:32:08,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392100727] [2023-11-06 22:32:08,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:08,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:08,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:08,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:08,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:32:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:08,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:32:09,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-06 22:32:09,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392100727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162277801] [2023-11-06 22:32:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:09,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:32:09,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:32:09,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:09,081 INFO L87 Difference]: Start difference. First operand has 54 states, 40 states have (on average 1.45) internal successors, (58), 41 states have internal predecessors, (58), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:09,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:09,111 INFO L93 Difference]: Finished difference Result 101 states and 165 transitions. [2023-11-06 22:32:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:32:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2023-11-06 22:32:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:09,122 INFO L225 Difference]: With dead ends: 101 [2023-11-06 22:32:09,122 INFO L226 Difference]: Without dead ends: 50 [2023-11-06 22:32:09,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:09,130 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:09,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:32:09,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-06 22:32:09,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-06 22:32:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:32:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2023-11-06 22:32:09,174 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 77 [2023-11-06 22:32:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:09,174 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2023-11-06 22:32:09,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2023-11-06 22:32:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:32:09,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:09,180 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:09,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:09,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:32:09,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:09,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash -307137612, now seen corresponding path program 1 times [2023-11-06 22:32:09,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:09,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718013612] [2023-11-06 22:32:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:09,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:09,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566653139] [2023-11-06 22:32:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:09,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:09,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:09,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:09,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:32:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:09,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:32:09,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:09,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:09,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718013612] [2023-11-06 22:32:09,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:09,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566653139] [2023-11-06 22:32:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566653139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:32:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297488332] [2023-11-06 22:32:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:09,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:32:09,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:32:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:32:09,841 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:10,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:10,075 INFO L93 Difference]: Finished difference Result 148 states and 213 transitions. [2023-11-06 22:32:10,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:32:10,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2023-11-06 22:32:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:10,081 INFO L225 Difference]: With dead ends: 148 [2023-11-06 22:32:10,081 INFO L226 Difference]: Without dead ends: 101 [2023-11-06 22:32:10,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:32:10,084 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 98 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:10,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 229 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-06 22:32:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 84. [2023-11-06 22:32:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 63 states have internal predecessors, (84), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-11-06 22:32:10,121 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 77 [2023-11-06 22:32:10,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:10,122 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-11-06 22:32:10,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-11-06 22:32:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:32:10,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:10,125 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:10,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 22:32:10,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:10,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash 372920758, now seen corresponding path program 1 times [2023-11-06 22:32:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819351071] [2023-11-06 22:32:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:10,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:10,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909995234] [2023-11-06 22:32:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:10,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:10,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:10,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:10,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:32:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:10,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:32:10,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:10,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819351071] [2023-11-06 22:32:10,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:10,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909995234] [2023-11-06 22:32:10,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909995234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:10,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:10,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:32:10,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744092636] [2023-11-06 22:32:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:10,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:32:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:10,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:32:10,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:32:10,709 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:10,921 INFO L93 Difference]: Finished difference Result 183 states and 263 transitions. [2023-11-06 22:32:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:32:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2023-11-06 22:32:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:10,925 INFO L225 Difference]: With dead ends: 183 [2023-11-06 22:32:10,926 INFO L226 Difference]: Without dead ends: 102 [2023-11-06 22:32:10,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:32:10,928 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 70 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:10,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 313 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:10,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-06 22:32:10,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 86. [2023-11-06 22:32:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.34375) internal successors, (86), 65 states have internal predecessors, (86), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:10,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-11-06 22:32:10,958 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 77 [2023-11-06 22:32:10,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:10,959 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-11-06 22:32:10,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:10,959 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-11-06 22:32:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:32:10,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:10,961 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:10,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:11,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:11,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:11,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1827880264, now seen corresponding path program 1 times [2023-11-06 22:32:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:11,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987235586] [2023-11-06 22:32:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:11,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:11,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110671219] [2023-11-06 22:32:11,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:11,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:11,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:11,212 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:11,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:32:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:11,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:32:11,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:11,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987235586] [2023-11-06 22:32:11,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110671219] [2023-11-06 22:32:11,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110671219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:11,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:11,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:32:11,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677200815] [2023-11-06 22:32:11,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:32:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:11,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:32:11,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:32:11,466 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:11,624 INFO L93 Difference]: Finished difference Result 202 states and 286 transitions. [2023-11-06 22:32:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:32:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2023-11-06 22:32:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:11,627 INFO L225 Difference]: With dead ends: 202 [2023-11-06 22:32:11,627 INFO L226 Difference]: Without dead ends: 119 [2023-11-06 22:32:11,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:32:11,635 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:11,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 245 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-06 22:32:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 86. [2023-11-06 22:32:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.34375) internal successors, (86), 65 states have internal predecessors, (86), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:11,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-11-06 22:32:11,663 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 78 [2023-11-06 22:32:11,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:11,664 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-11-06 22:32:11,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-11-06 22:32:11,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:32:11,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:11,666 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:11,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:11,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:11,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:11,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash -52872902, now seen corresponding path program 1 times [2023-11-06 22:32:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:11,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685591305] [2023-11-06 22:32:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:11,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:11,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:11,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424284587] [2023-11-06 22:32:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:11,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:11,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:11,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:32:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:12,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:32:12,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:12,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685591305] [2023-11-06 22:32:12,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:12,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424284587] [2023-11-06 22:32:12,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424284587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:12,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:12,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:32:12,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462906685] [2023-11-06 22:32:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:12,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:32:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:12,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:32:12,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:32:12,382 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:12,558 INFO L93 Difference]: Finished difference Result 202 states and 285 transitions. [2023-11-06 22:32:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:32:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2023-11-06 22:32:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:12,564 INFO L225 Difference]: With dead ends: 202 [2023-11-06 22:32:12,564 INFO L226 Difference]: Without dead ends: 119 [2023-11-06 22:32:12,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:32:12,566 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 106 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:12,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 294 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-06 22:32:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 84. [2023-11-06 22:32:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2023-11-06 22:32:12,595 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 78 [2023-11-06 22:32:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:12,596 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2023-11-06 22:32:12,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2023-11-06 22:32:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:32:12,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:12,603 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:12,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:12,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:12,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:12,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:12,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2074060022, now seen corresponding path program 1 times [2023-11-06 22:32:12,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:12,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732997888] [2023-11-06 22:32:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:12,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:12,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:12,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457678568] [2023-11-06 22:32:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:12,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:12,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:12,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:12,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:32:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:12,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:32:12,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:13,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:13,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:13,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732997888] [2023-11-06 22:32:13,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:13,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457678568] [2023-11-06 22:32:13,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457678568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:13,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:32:13,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204566169] [2023-11-06 22:32:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:13,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:32:13,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:32:13,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:32:13,070 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:13,287 INFO L93 Difference]: Finished difference Result 196 states and 278 transitions. [2023-11-06 22:32:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:32:13,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2023-11-06 22:32:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:13,289 INFO L225 Difference]: With dead ends: 196 [2023-11-06 22:32:13,290 INFO L226 Difference]: Without dead ends: 115 [2023-11-06 22:32:13,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:32:13,291 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 97 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:13,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 327 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-06 22:32:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 84. [2023-11-06 22:32:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:13,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2023-11-06 22:32:13,305 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 78 [2023-11-06 22:32:13,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:13,305 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2023-11-06 22:32:13,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2023-11-06 22:32:13,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:32:13,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:13,308 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:13,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:13,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:13,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:13,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash -445899912, now seen corresponding path program 1 times [2023-11-06 22:32:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:13,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703564473] [2023-11-06 22:32:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:13,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:13,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:13,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152763637] [2023-11-06 22:32:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:13,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:13,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:13,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:13,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:32:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:13,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:32:13,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:32:14,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:14,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:14,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703564473] [2023-11-06 22:32:14,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:14,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152763637] [2023-11-06 22:32:14,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152763637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:14,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:14,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:32:14,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025709254] [2023-11-06 22:32:14,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:14,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:32:14,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:32:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:32:14,018 INFO L87 Difference]: Start difference. First operand 84 states and 121 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:14,237 INFO L93 Difference]: Finished difference Result 196 states and 277 transitions. [2023-11-06 22:32:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:32:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2023-11-06 22:32:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:14,239 INFO L225 Difference]: With dead ends: 196 [2023-11-06 22:32:14,239 INFO L226 Difference]: Without dead ends: 115 [2023-11-06 22:32:14,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:32:14,240 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 77 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:14,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 390 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:32:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-06 22:32:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 82. [2023-11-06 22:32:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 61 states have internal predecessors, (80), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:32:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2023-11-06 22:32:14,252 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 78 [2023-11-06 22:32:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:14,253 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2023-11-06 22:32:14,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:32:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2023-11-06 22:32:14,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 22:32:14,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:14,254 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:14,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:14,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:14,465 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:14,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:14,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1128180881, now seen corresponding path program 1 times [2023-11-06 22:32:14,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:14,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368690589] [2023-11-06 22:32:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:14,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:14,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142858854] [2023-11-06 22:32:14,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:14,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:14,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:14,488 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:14,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:32:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:14,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:32:14,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-06 22:32:15,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:32:15,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:15,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368690589] [2023-11-06 22:32:15,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:32:15,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142858854] [2023-11-06 22:32:15,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142858854] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:15,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:32:15,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-06 22:32:15,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86357794] [2023-11-06 22:32:15,240 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:32:15,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:32:15,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:15,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:32:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:32:15,241 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:15,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:15,566 INFO L93 Difference]: Finished difference Result 221 states and 313 transitions. [2023-11-06 22:32:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:32:15,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-11-06 22:32:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:15,569 INFO L225 Difference]: With dead ends: 221 [2023-11-06 22:32:15,569 INFO L226 Difference]: Without dead ends: 142 [2023-11-06 22:32:15,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:32:15,570 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 107 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:15,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 282 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:32:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-06 22:32:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 120. [2023-11-06 22:32:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 85 states have internal predecessors, (109), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-06 22:32:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2023-11-06 22:32:15,588 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 79 [2023-11-06 22:32:15,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:15,588 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2023-11-06 22:32:15,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2023-11-06 22:32:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 22:32:15,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:15,590 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:15,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:15,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:32:15,796 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:15,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:15,797 INFO L85 PathProgramCache]: Analyzing trace with hash -427116303, now seen corresponding path program 1 times [2023-11-06 22:32:15,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:15,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835065406] [2023-11-06 22:32:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:15,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:15,817 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:32:15,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728084918] [2023-11-06 22:32:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:15,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:15,819 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:32:15,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:32:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:32:16,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:32:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:32:16,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:32:16,137 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:32:16,138 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:32:16,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:16,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:32:16,348 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:16,351 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:32:16,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:32:16 BoogieIcfgContainer [2023-11-06 22:32:16,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:32:16,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:32:16,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:32:16,466 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:32:16,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:08" (3/4) ... [2023-11-06 22:32:16,468 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:32:16,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:32:16,470 INFO L158 Benchmark]: Toolchain (without parser) took 8995.62ms. Allocated memory was 125.8MB in the beginning and 218.1MB in the end (delta: 92.3MB). Free memory was 81.1MB in the beginning and 112.8MB in the end (delta: -31.7MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-06 22:32:16,471 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:16,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.79ms. Allocated memory is still 125.8MB. Free memory was 80.7MB in the beginning and 68.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:32:16,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.16ms. Allocated memory is still 125.8MB. Free memory was 68.6MB in the beginning and 65.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:16,472 INFO L158 Benchmark]: Boogie Preprocessor took 58.77ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 64.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:16,473 INFO L158 Benchmark]: RCFGBuilder took 588.66ms. Allocated memory was 125.8MB in the beginning and 180.4MB in the end (delta: 54.5MB). Free memory was 63.9MB in the beginning and 145.2MB in the end (delta: -81.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-06 22:32:16,473 INFO L158 Benchmark]: TraceAbstraction took 7936.42ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 144.3MB in the beginning and 112.8MB in the end (delta: 31.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-06 22:32:16,474 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 218.1MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:32:16,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.79ms. Allocated memory is still 125.8MB. Free memory was 80.7MB in the beginning and 68.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.16ms. Allocated memory is still 125.8MB. Free memory was 68.6MB in the beginning and 65.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.77ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 64.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.66ms. Allocated memory was 125.8MB in the beginning and 180.4MB in the end (delta: 54.5MB). Free memory was 63.9MB in the beginning and 145.2MB in the end (delta: -81.3MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7936.42ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 144.3MB in the beginning and 112.8MB in the end (delta: 31.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 218.1MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 200; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 1107940323; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 16; [L28] unsigned char var_1_9 = 16; [L29] unsigned short int var_1_10 = 4; [L30] double var_1_11 = 1000000.5; [L31] double var_1_12 = 1.25; [L32] signed long int last_1_var_1_1 = 200; [L33] unsigned char last_1_var_1_8 = 16; [L34] unsigned short int last_1_var_1_10 = 4; VAL [isInitial=0, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L91] isInitial = 1 [L92] FCALL initially() [L93] COND TRUE 1 [L94] CALL updateLastVariables() [L82] last_1_var_1_1 = var_1_1 [L83] last_1_var_1_8 = var_1_8 [L84] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L94] RET updateLastVariables() [L95] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L66] var_1_3 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_3 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L67] RET assume_abort_if_not(var_1_3 >= 1073741822) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L68] CALL assume_abort_if_not(var_1_3 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L68] RET assume_abort_if_not(var_1_3 <= 2147483646) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L72] var_1_7 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L74] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L74] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L75] var_1_9 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L77] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L77] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L78] var_1_12 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L95] RET updateVariables() [L96] CALL step() [L38] signed long int stepLocal_2 = last_1_var_1_8; [L39] signed long int stepLocal_1 = var_1_3 * last_1_var_1_8; VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=4, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L40] COND TRUE stepLocal_1 >= last_1_var_1_1 [L41] var_1_10 = (2 + var_1_9) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=256, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L49] signed long int stepLocal_0 = last_1_var_1_10 / var_1_3; VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=256, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L50] COND FALSE !(stepLocal_0 >= (500 - last_1_var_1_10)) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=256, var_1_11=2000001/2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L53] var_1_11 = var_1_12 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L54] COND TRUE \read(var_1_2) [L55] var_1_1 = ((var_1_3 - var_1_10) - var_1_8) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L96] RET step() [L97] CALL, EXPR property() [L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))) VAL [((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L87] EXPR ((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))) VAL [((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))=1, ((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))) VAL [((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))=1, ((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L87-L88] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))) && (var_1_11 == ((double) var_1_12)) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=256, var_1_11=2, var_1_12=2, var_1_1=1073741550, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 9, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 682 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 682 mSDsluCounter, 2153 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1459 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 535 IncrementalHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 694 mSDtfsCounter, 535 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 705 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=8, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 187 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 778 NumberOfCodeBlocks, 778 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 614 ConstructedInterpolants, 1 QuantifiedInterpolants, 1227 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1620 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 1736/1760 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:32:16,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:19,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:19,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:32:19,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:19,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:19,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:19,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:19,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:19,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:19,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:19,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:19,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:19,399 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:19,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:19,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:19,402 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:19,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:19,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:19,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:19,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:19,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:19,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:32:19,405 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:32:19,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:32:19,406 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:19,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:19,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:19,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:19,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:19,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:19,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:19,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:19,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:19,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:19,411 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:32:19,412 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:32:19,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:19,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:19,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:19,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:19,414 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:32:19,414 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:19,414 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_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467bed661cf63a02282e934f04018577c56640d956d1a7c76e6a0b9311fee03c [2023-11-06 22:32:19,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:19,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:19,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:19,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:19,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:19,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:23,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:23,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:23,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:23,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/9791dad72/6d2a93c2ce18456c8dad63d0c6b3c0c0/FLAGf3f39e4b1 [2023-11-06 22:32:23,598 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/data/9791dad72/6d2a93c2ce18456c8dad63d0c6b3c0c0 [2023-11-06 22:32:23,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:23,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:23,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:23,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:23,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:23,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:23" (1/1) ... [2023-11-06 22:32:23,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d75fc4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:23, skipping insertion in model container [2023-11-06 22:32:23,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:23" (1/1) ... [2023-11-06 22:32:23,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:23,846 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928] [2023-11-06 22:32:23,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:23,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:23,957 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-31.i[915,928] [2023-11-06 22:32:23,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:24,018 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:24,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24 WrapperNode [2023-11-06 22:32:24,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:24,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:24,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:24,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:24,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,092 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-06 22:32:24,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:24,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:24,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:24,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:24,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:24,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:24,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:24,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:24,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (1/1) ... [2023-11-06 22:32:24,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:24,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:24,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:24,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:32:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:32:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:32:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:24,341 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:24,343 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:24,689 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:24,697 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:24,699 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:32:24,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:24 BoogieIcfgContainer [2023-11-06 22:32:24,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:24,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:24,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:24,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:24,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:23" (1/3) ... [2023-11-06 22:32:24,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d0e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:24, skipping insertion in model container [2023-11-06 22:32:24,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:24" (2/3) ... [2023-11-06 22:32:24,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d0e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:24, skipping insertion in model container [2023-11-06 22:32:24,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:24" (3/3) ... [2023-11-06 22:32:24,713 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-31.i [2023-11-06 22:32:24,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:24,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:32:24,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:32:24,801 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=LoopsAndPotentialCycles, 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;@3c957e58, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:32:24,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:32:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:32:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:32:24,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:24,822 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:24,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:24,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:24,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1095913414, now seen corresponding path program 1 times [2023-11-06 22:32:24,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:32:24,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139944448] [2023-11-06 22:32:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:24,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:32:24,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:32:24,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:32:24,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:32:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:25,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:32:25,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-06 22:32:25,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:32:25,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:32:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139944448] [2023-11-06 22:32:25,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139944448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:25,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:25,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:32:25,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617737479] [2023-11-06 22:32:25,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:25,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:32:25,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:32:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:32:25,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:25,206 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:25,236 INFO L93 Difference]: Finished difference Result 79 states and 127 transitions. [2023-11-06 22:32:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:32:25,239 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2023-11-06 22:32:25,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:25,245 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:32:25,245 INFO L226 Difference]: Without dead ends: 39 [2023-11-06 22:32:25,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:32:25,251 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:25,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:32:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-06 22:32:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-06 22:32:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:32:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2023-11-06 22:32:25,291 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 75 [2023-11-06 22:32:25,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:25,292 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2023-11-06 22:32:25,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:25,293 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2023-11-06 22:32:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:32:25,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:25,297 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:25,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:25,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:32:25,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:25,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash -742470136, now seen corresponding path program 1 times [2023-11-06 22:32:25,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:32:25,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324157183] [2023-11-06 22:32:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:25,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:32:25,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:32:25,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:32:25,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:32:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:25,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:32:25,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-06 22:32:26,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:32:28,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:32:28,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324157183] [2023-11-06 22:32:28,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324157183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:28,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [856409450] [2023-11-06 22:32:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:28,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:32:28,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:32:28,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:32:28,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-06 22:32:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:32:28,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:32:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-06 22:32:29,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:32:30,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [856409450] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:32:30,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:32:30,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-06 22:32:30,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654120859] [2023-11-06 22:32:30,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:32:30,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:32:30,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:32:30,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:32:30,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:32:30,180 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:32,449 INFO L93 Difference]: Finished difference Result 118 states and 162 transitions. [2023-11-06 22:32:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:32:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2023-11-06 22:32:32,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:32,458 INFO L225 Difference]: With dead ends: 118 [2023-11-06 22:32:32,459 INFO L226 Difference]: Without dead ends: 82 [2023-11-06 22:32:32,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:32:32,461 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 48 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:32,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:32:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-06 22:32:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2023-11-06 22:32:32,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:32:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2023-11-06 22:32:32,486 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 75 [2023-11-06 22:32:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:32,487 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2023-11-06 22:32:32,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:32:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2023-11-06 22:32:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:32:32,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:32,491 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:32,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:32,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:32:32,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:32:32,913 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:32,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:32,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1032537226, now seen corresponding path program 1 times [2023-11-06 22:32:32,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:32:32,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258887287] [2023-11-06 22:32:32,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:32,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:32:32,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:32:32,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:32:32,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22c63b04-d64e-44bf-a49a-5405d6cc2f5a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:32:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:33,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:32:33,223 INFO L285 TraceCheckSpWp]: Computing forward predicates...