/usr/bin/java -Xmx16000000000 -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-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 00:18:18,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 00:18:18,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 00:18:18,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 00:18:18,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 00:18:18,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 00:18:18,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 00:18:18,477 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-DelaySleep-NoLbe-Random7777.epf [2021-06-07 00:18:18,503 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 00:18:18,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 00:18:18,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 00:18:18,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 00:18:18,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 00:18:18,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 00:18:18,506 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 00:18:18,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 00:18:18,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 00:18:18,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 00:18:18,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 00:18:18,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 00:18:18,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 00:18:18,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 00:18:18,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 00:18:18,510 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 00:18:18,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 00:18:18,510 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 00:18:18,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 00:18:18,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 00:18:18,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 00:18:18,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-07 00:18:18,747 INFO L275 PluginConnector]: CDTParser initialized [2021-06-07 00:18:18,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-06-07 00:18:18,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8540c79/fc176290beb742638cd1e3f447bfda98/FLAGa34182262 [2021-06-07 00:18:19,234 INFO L306 CDTParser]: Found 1 translation units. [2021-06-07 00:18:19,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-06-07 00:18:19,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8540c79/fc176290beb742638cd1e3f447bfda98/FLAGa34182262 [2021-06-07 00:18:19,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8540c79/fc176290beb742638cd1e3f447bfda98 [2021-06-07 00:18:19,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 00:18:19,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-07 00:18:19,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-07 00:18:19,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-07 00:18:19,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-07 00:18:19,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c9c4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19, skipping insertion in model container [2021-06-07 00:18:19,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-07 00:18:19,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-07 00:18:19,422 WARN L224 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] [2021-06-07 00:18:19,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-07 00:18:19,504 INFO L203 MainTranslator]: Completed pre-run [2021-06-07 00:18:19,512 WARN L224 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] [2021-06-07 00:18:19,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-07 00:18:19,571 INFO L208 MainTranslator]: Completed translation [2021-06-07 00:18:19,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19 WrapperNode [2021-06-07 00:18:19,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-07 00:18:19,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 00:18:19,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 00:18:19,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 00:18:19,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 00:18:19,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 00:18:19,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 00:18:19,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 00:18:19,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... [2021-06-07 00:18:19,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 00:18:19,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 00:18:19,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 00:18:19,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 00:18:19,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 00:18:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-07 00:18:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-07 00:18:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-07 00:18:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-07 00:18:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2021-06-07 00:18:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2021-06-07 00:18:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2021-06-07 00:18:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2021-06-07 00:18:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-07 00:18:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 00:18:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 00:18:19,680 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 00:18:20,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 00:18:20,072 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-06-07 00:18:20,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 12:18:20 BoogieIcfgContainer [2021-06-07 00:18:20,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 00:18:20,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 00:18:20,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 00:18:20,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 00:18:20,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.06 12:18:19" (1/3) ... [2021-06-07 00:18:20,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41dd13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 12:18:20, skipping insertion in model container [2021-06-07 00:18:20,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.06 12:18:19" (2/3) ... [2021-06-07 00:18:20,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41dd13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 12:18:20, skipping insertion in model container [2021-06-07 00:18:20,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 12:18:20" (3/3) ... [2021-06-07 00:18:20,079 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2021-06-07 00:18:20,083 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 00:18:20,083 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 00:18:20,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-06-07 00:18:20,084 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 00:18:20,105 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,106 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,106 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,106 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,106 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,107 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,108 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,109 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,109 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,109 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,109 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,110 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,111 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,111 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,111 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,114 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,115 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,115 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,115 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-07 00:18:20,123 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-07 00:18:20,141 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-07 00:18:20,195 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 00:18:20,196 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 00:18:20,196 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 00:18:20,196 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 00:18:20,196 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 00:18:20,196 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 00:18:20,196 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 00:18:20,196 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 00:18:20,307 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-07 00:18:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 00:18:20,311 INFO L82 PathProgramCache]: Analyzing trace with hash -638457646, now seen corresponding path program 1 times [2021-06-07 00:18:20,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 00:18:20,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187923920] [2021-06-07 00:18:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 00:18:20,440 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-06-07 00:18:20,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898138589] [2021-06-07 00:18:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 00:18:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 00:18:20,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-07 00:18:20,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown