/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 15:10:01,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 15:10:01,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 15:10:01,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 15:10:01,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 15:10:01,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 15:10:01,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 15:10:01,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random42.epf [2021-10-22 15:10:01,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 15:10:01,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 15:10:01,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 15:10:01,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 15:10:01,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 15:10:01,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 15:10:01,223 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 15:10:01,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 15:10:01,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 15:10:01,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 15:10:01,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 15:10:01,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 15:10:01,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 15:10:01,226 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 15:10:01,226 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 15:10:01,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 15:10:01,226 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 [2021-10-22 15:10:01,226 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 15:10:01,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 15:10:01,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 15:10:01,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 15:10:01,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-22 15:10:01,442 INFO L275 PluginConnector]: CDTParser initialized [2021-10-22 15:10:01,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-10-22 15:10:01,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a21cdab/8341ab1a5b154930baa73ac5079accdb/FLAGf10a8571d [2021-10-22 15:10:01,883 INFO L306 CDTParser]: Found 1 translation units. [2021-10-22 15:10:01,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-10-22 15:10:01,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a21cdab/8341ab1a5b154930baa73ac5079accdb/FLAGf10a8571d [2021-10-22 15:10:01,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a21cdab/8341ab1a5b154930baa73ac5079accdb [2021-10-22 15:10:01,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 15:10:01,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-22 15:10:01,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-22 15:10:01,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-22 15:10:01,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-22 15:10:01,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:10:01" (1/1) ... [2021-10-22 15:10:01,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56edae72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:01, skipping insertion in model container [2021-10-22 15:10:01,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:10:01" (1/1) ... [2021-10-22 15:10:01,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-22 15:10:01,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-22 15:10:02,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2021-10-22 15:10:02,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 15:10:02,175 INFO L203 MainTranslator]: Completed pre-run [2021-10-22 15:10:02,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2021-10-22 15:10:02,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 15:10:02,242 INFO L208 MainTranslator]: Completed translation [2021-10-22 15:10:02,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02 WrapperNode [2021-10-22 15:10:02,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-22 15:10:02,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 15:10:02,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 15:10:02,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 15:10:02,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 15:10:02,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 15:10:02,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 15:10:02,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 15:10:02,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 15:10:02,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 15:10:02,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 15:10:02,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 15:10:02,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (1/1) ... [2021-10-22 15:10:02,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 15:10:02,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 15:10:02,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 15:10:02,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-22 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-22 15:10:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-22 15:10:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-22 15:10:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2021-10-22 15:10:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2021-10-22 15:10:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2021-10-22 15:10:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2021-10-22 15:10:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-22 15:10:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 15:10:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 15:10:02,417 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 15:10:02,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 15:10:02,753 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-22 15:10:02,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:10:02 BoogieIcfgContainer [2021-10-22 15:10:02,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 15:10:02,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 15:10:02,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 15:10:02,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 15:10:02,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:10:01" (1/3) ... [2021-10-22 15:10:02,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:10:02, skipping insertion in model container [2021-10-22 15:10:02,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:10:02" (2/3) ... [2021-10-22 15:10:02,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:10:02, skipping insertion in model container [2021-10-22 15:10:02,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:10:02" (3/3) ... [2021-10-22 15:10:02,760 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2021-10-22 15:10:02,764 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 15:10:02,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 15:10:02,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-22 15:10:02,764 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 15:10:02,790 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,790 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,791 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,792 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,793 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,794 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,794 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,796 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,796 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,796 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,796 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,802 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,802 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,802 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,802 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 15:10:02,813 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 15:10:02,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 15:10:02,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 15:10:02,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 15:10:02,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 15:10:02,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 15:10:02,886 INFO L339 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, mConcurrency=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 15:10:02,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-22 15:10:03,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 15:10:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 15:10:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1931653362, now seen corresponding path program 1 times [2021-10-22 15:10:03,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 15:10:03,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117483000] [2021-10-22 15:10:03,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 15:10:03,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 15:10:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 15:10:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 15:10:03,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 15:10:03,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117483000] [2021-10-22 15:10:03,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117483000] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 15:10:03,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 15:10:03,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 15:10:03,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698051677] [2021-10-22 15:10:03,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-22 15:10:03,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 15:10:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-22 15:10:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-22 15:10:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:10:03,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 15:10:03,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 15:10:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:10:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:10:03,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 15:10:03,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 15:10:03,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 15:10:03,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1392569228, now seen corresponding path program 1 times [2021-10-22 15:10:03,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 15:10:03,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020478798] [2021-10-22 15:10:03,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 15:10:03,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 15:10:03,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-22 15:10:03,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113008822] [2021-10-22 15:10:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 15:10:03,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 15:10:03,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 15:10:03,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 15:10:03,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 15:10:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 15:10:09,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-22 15:10:09,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 15:12:25,348 WARN L207 SmtUtils]: Spent 7.07 s on a formula simplification that was a NOOP. DAG size: 67 [2021-10-22 15:13:11,289 WARN L207 SmtUtils]: Spent 9.79 s on a formula simplification that was a NOOP. DAG size: 67 [2021-10-22 15:14:00,183 WARN L207 SmtUtils]: Spent 5.56 s on a formula simplification that was a NOOP. DAG size: 56 [2021-10-22 15:15:08,679 WARN L860 $PredicateComparison]: unable to prove that (exists ((aux_mod_ULTIMATE.start_check_gcd_~a_in_47 Int) (aux_mod_ULTIMATE.start_check_gcd_~guessed_gcd~0_56 Int) (aux_mod_ULTIMATE.start_check_gcd_~b_in_47 Int)) (let ((.cse0 (mod aux_mod_ULTIMATE.start_check_gcd_~guessed_gcd~0_56 4294967296))) (and (= (mod (mod aux_mod_ULTIMATE.start_check_gcd_~b_in_47 .cse0) 4294967296) 0) (<= 0 aux_mod_ULTIMATE.start_check_gcd_~b_in_47) (<= 0 aux_mod_ULTIMATE.start_check_gcd_~a_in_47) (< aux_mod_ULTIMATE.start_check_gcd_~guessed_gcd~0_56 4294967296) (let ((.cse4 (<= 1 |c_ULTIMATE.start___VERIFIER_assert_#in~cond|))) (or (and (exists ((aux_div_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 Int) (aux_div_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 Int) (aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 Int)) (let ((.cse3 (* 4294967296 aux_div_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68))) (let ((.cse2 (+ .cse3 aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68)) (.cse1 (+ .cse3 (* 4294967296 aux_div_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57) aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68))) (and (< .cse1 (mod (* aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 2) 4294967296)) (<= 0 .cse2) (< aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 4294967296) (<= 0 aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68) (< .cse2 4294967296) (<= 0 .cse1) (= (mod (+ aux_mod_ULTIMATE.start_check_gcd_~a_in_47 (* aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 4294967293)) 4294967296) 0) (< (mod (+ (+ (* aux_div_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68 4294967296) aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68) aux_mod_aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57_68) 4294967296) (mod aux_mod_ULTIMATE.start_check_gcd_~a_in_47 4294967296)))))) .cse4) (and .cse4 (exists ((aux_div_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 Int) (aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 Int) (aux_div_ULTIMATE.start_check_gcd_~a_in_47 Int) (aux_div_ULTIMATE.start_check_gcd_~gcd_46 Int)) (let ((.cse5 (+ aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 (* 4294967296 aux_div_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57))) (.cse6 (* aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 2))) (and (< .cse5 4294967296) (<= 0 aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57) (= (mod (+ (* aux_mod_ULTIMATE.start_check_gcd_~a_in_47 4294967295) .cse6) (- 4294967296)) 0) (<= 0 .cse5) (< aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 4294967296) (let ((.cse7 (* (div (+ (* aux_div_ULTIMATE.start_check_gcd_~gcd_46 4294967296) (* aux_div_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57 4294967296) (* aux_mod_ULTIMATE.start_check_gcd_~a_in_47 (- 1)) .cse6 (* aux_div_ULTIMATE.start_check_gcd_~a_in_47 (- 4294967296))) (- 4294967296)) 4294967296))) (< (div (+ (* (mod aux_mod_ULTIMATE.start_check_gcd_~a_in_47 4294967296) (- 1)) .cse7 aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57) 4294967296) (div (+ .cse7 aux_mod_aux_mod_ULTIMATE.start_check_gcd_~gcd_46_57) 4294967296))))))) (and (or (and (<= 0 |c_ULTIMATE.start___VERIFIER_assert_#in~cond|) (not (= (mod (let ((.cse8 (mod aux_mod_ULTIMATE.start_check_gcd_~a_in_47 4294967296))) (mod .cse8 .cse8)) 4294967296) 0))) .cse4) (exists ((aux_div_ULTIMATE.start_check_gcd_~a_in_47 Int) (aux_div_ULTIMATE.start_check_gcd_~gcd_46 Int)) (let ((.cse10 (* 4294967296 aux_div_ULTIMATE.start_check_gcd_~gcd_46)) (.cse9 (+ (* 4294967296 aux_div_ULTIMATE.start_check_gcd_~a_in_47) aux_mod_ULTIMATE.start_check_gcd_~a_in_47))) (and (< .cse9 (+ .cse10 (mod (* aux_mod_ULTIMATE.start_check_gcd_~a_in_47 2) 4294967296))) (<= .cse10 .cse9))))))) (= (mod (mod aux_mod_ULTIMATE.start_check_gcd_~a_in_47 .cse0) 4294967296) 0) (< 1 aux_mod_ULTIMATE.start_check_gcd_~guessed_gcd~0_56) (< aux_mod_ULTIMATE.start_check_gcd_~a_in_47 4294967296) (< aux_mod_ULTIMATE.start_check_gcd_~b_in_47 4294967296)))) is different from true [2021-10-22 15:15:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 15:15:27,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 15:15:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020478798] [2021-10-22 15:15:27,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-22 15:15:27,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113008822] [2021-10-22 15:15:27,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113008822] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 15:15:27,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-22 15:15:27,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2021-10-22 15:15:27,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673526335] [2021-10-22 15:15:27,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-22 15:15:27,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 15:15:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-22 15:15:27,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=982, Unknown=46, NotChecked=64, Total=1190 [2021-10-22 15:15:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:15:27,960 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 15:15:27,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.6285714285714286) internal successors, (92), 35 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 15:15:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:15:27,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:15:51,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 15:15:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 15:15:51,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-22 15:15:51,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-22 15:15:51,417 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-22 15:15:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 15:15:51,418 INFO L82 PathProgramCache]: Analyzing trace with hash 457332424, now seen corresponding path program 2 times [2021-10-22 15:15:51,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 15:15:51,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204472704] [2021-10-22 15:15:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 15:15:51,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 15:15:51,465 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-22 15:15:51,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307538562] [2021-10-22 15:15:51,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 15:15:51,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 15:15:51,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 15:15:51,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 15:15:51,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2021-10-22 15:24:43,509 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 15:24:43,509 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 15:24:43,509 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 15:24:44,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-22 15:24:44,712 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-10-22 15:24:44,712 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-22 15:24:44,722 ERROR L247 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2021-10-22 15:24:44,724 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 15:24:44,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2021-10-22 15:24:44,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 15:24:44,725 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2021-10-22 15:24:44,727 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 15:24:44,727 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 15:24:44,727 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 15:24:44,727 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 15:24:44,739 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 15:24:44,739 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 15:24:44,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:24:44 BasicIcfg [2021-10-22 15:24:44,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 15:24:44,741 INFO L168 Benchmark]: Toolchain (without parser) took 882825.72 ms. Allocated memory was 209.7 MB in the beginning and 268.4 MB in the end (delta: 58.7 MB). Free memory was 153.2 MB in the beginning and 214.5 MB in the end (delta: -61.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 15:24:44,741 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 209.7 MB. Free memory is still 171.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 15:24:44,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.38 ms. Allocated memory was 209.7 MB in the beginning and 268.4 MB in the end (delta: 58.7 MB). Free memory was 153.0 MB in the beginning and 231.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2021-10-22 15:24:44,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.82 ms. Allocated memory is still 268.4 MB. Free memory was 231.9 MB in the beginning and 229.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 15:24:44,742 INFO L168 Benchmark]: Boogie Preprocessor took 31.39 ms. Allocated memory is still 268.4 MB. Free memory was 229.2 MB in the beginning and 227.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 15:24:44,743 INFO L168 Benchmark]: RCFGBuilder took 420.14 ms. Allocated memory is still 268.4 MB. Free memory was 227.7 MB in the beginning and 194.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2021-10-22 15:24:44,743 INFO L168 Benchmark]: TraceAbstraction took 881984.78 ms. Allocated memory is still 268.4 MB. Free memory was 193.6 MB in the beginning and 214.5 MB in the end (delta: -21.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 15:24:44,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2021-10-22 15:24:44,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 209.7 MB. Free memory is still 171.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 324.38 ms. Allocated memory was 209.7 MB in the beginning and 268.4 MB in the end (delta: 58.7 MB). Free memory was 153.0 MB in the beginning and 231.9 MB in the end (delta: -78.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.82 ms. Allocated memory is still 268.4 MB. Free memory was 231.9 MB in the beginning and 229.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.39 ms. Allocated memory is still 268.4 MB. Free memory was 229.2 MB in the beginning and 227.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.14 ms. Allocated memory is still 268.4 MB. Free memory was 227.7 MB in the beginning and 194.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 881984.78 ms. Allocated memory is still 268.4 MB. Free memory was 193.6 MB in the beginning and 214.5 MB in the end (delta: -21.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 638, positive: 516, positive conditional: 229, positive unconditional: 287, negative: 122, negative conditional: 114, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 536, positive: 516, positive conditional: 0, positive unconditional: 516, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 286, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 286, positive: 276, positive conditional: 0, positive unconditional: 276, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 536, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 286, unknown conditional: 0, unknown unconditional: 286] , Statistics on independence cache: Total cache size (in pairs): 286, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Independence queries for same thread: 102 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 96, Number of persistent set computation: 107, Number of trivial persistent sets: 95, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 638, positive: 516, positive conditional: 229, positive unconditional: 287, negative: 122, negative conditional: 114, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 536, positive: 516, positive conditional: 0, positive unconditional: 516, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 286, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 286, positive: 276, positive conditional: 0, positive unconditional: 276, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 536, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 286, unknown conditional: 0, unknown unconditional: 286] , Statistics on independence cache: Total cache size (in pairs): 286, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Independence queries for same thread: 102 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 729]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 730]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 97 with TraceHistMax 3,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 132 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 881883.7ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 23412.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.2ms SsaConstructionTime, 6317.7ms SatisfiabilityAnalysisTime, 318289.8ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 195 ConstructedInterpolants, 5 QuantifiedInterpolants, 5372 SizeOfPredicates, 27 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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: Timeout Completed graceful shutdown