/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 15:55:55,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 15:55:55,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 15:55:55,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 15:55:55,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 15:55:55,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 15:55:55,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 15:55:55,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 15:55:55,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 15:55:55,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 15:55:55,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 15:55:55,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 15:55:55,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 15:55:55,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 15:55:55,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 15:55:55,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 15:55:55,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 15:55:55,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 15:55:55,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 15:55:55,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 15:55:55,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 15:55:55,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 15:55:55,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 15:55:55,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 15:55:55,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 15:55:55,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 15:55:55,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 15:55:55,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 15:55:55,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 15:55:55,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 15:55:55,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 15:55:55,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 15:55:55,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 15:55:55,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 15:55:55,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 15:55:55,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 15:55:55,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 15:55:55,142 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 15:55:55,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 15:55:55,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 15:55:55,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 15:55:55,144 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 15:55:55,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 15:55:55,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 15:55:55,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 15:55:55,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 15:55:55,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 15:55:55,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 15:55:55,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 15:55:55,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 15:55:55,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 15:55:55,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 15:55:55,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 15:55:55,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 15:55:55,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 15:55:55,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 15:55:55,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 15:55:55,148 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 15:55:55,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 15:55:55,148 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 15:55:55,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 15:55:55,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 15:55:55,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 15:55:55,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 15:55:55,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 15:55:55,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 15:55:55,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 15:55:55,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-10-09 15:55:55,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9668aa/fc74d1c573a34341a0060a942202dcec/FLAG68cee9096 [2020-10-09 15:55:56,050 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 15:55:56,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-10-09 15:55:56,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9668aa/fc74d1c573a34341a0060a942202dcec/FLAG68cee9096 [2020-10-09 15:55:56,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed9668aa/fc74d1c573a34341a0060a942202dcec [2020-10-09 15:55:56,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 15:55:56,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 15:55:56,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 15:55:56,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 15:55:56,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 15:55:56,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:55:56" (1/1) ... [2020-10-09 15:55:56,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c972b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:56, skipping insertion in model container [2020-10-09 15:55:56,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:55:56" (1/1) ... [2020-10-09 15:55:56,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 15:55:56,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 15:55:56,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:55:57,016 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 15:55:57,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:55:57,148 INFO L208 MainTranslator]: Completed translation [2020-10-09 15:55:57,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57 WrapperNode [2020-10-09 15:55:57,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 15:55:57,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 15:55:57,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 15:55:57,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 15:55:57,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 15:55:57,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 15:55:57,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 15:55:57,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 15:55:57,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (1/1) ... [2020-10-09 15:55:57,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 15:55:57,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 15:55:57,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 15:55:57,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 15:55:57,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (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 [2020-10-09 15:55:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 15:55:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 15:55:57,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 15:55:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 15:55:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 15:55:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 15:55:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 15:55:57,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 15:55:57,324 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 15:55:57,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 15:55:57,927 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-09 15:55:57,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:55:57 BoogieIcfgContainer [2020-10-09 15:55:57,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 15:55:57,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 15:55:57,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 15:55:57,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 15:55:57,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 03:55:56" (1/3) ... [2020-10-09 15:55:57,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f06ff8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:55:57, skipping insertion in model container [2020-10-09 15:55:57,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:55:57" (2/3) ... [2020-10-09 15:55:57,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f06ff8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:55:57, skipping insertion in model container [2020-10-09 15:55:57,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:55:57" (3/3) ... [2020-10-09 15:55:57,941 INFO L111 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2020-10-09 15:55:57,957 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 15:55:57,967 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 15:55:57,968 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 15:55:58,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,023 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,023 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,025 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,025 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,026 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 15:55:58,073 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:58,073 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:58,073 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:58,073 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:58,074 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:58,074 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:58,074 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:58,074 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:58,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 72 transitions, 149 flow [2020-10-09 15:55:58,210 INFO L129 PetriNetUnfolder]: 11/110 cut-off events. [2020-10-09 15:55:58,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:55:58,218 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 11/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2020-10-09 15:55:58,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 72 transitions, 149 flow [2020-10-09 15:55:58,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 72 transitions, 149 flow [2020-10-09 15:55:58,243 INFO L129 PetriNetUnfolder]: 8/57 cut-off events. [2020-10-09 15:55:58,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:55:58,244 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:58,245 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:58,246 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:58,252 INFO L82 PathProgramCache]: Analyzing trace with hash -565122257, now seen corresponding path program 1 times [2020-10-09 15:55:58,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:58,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036805293] [2020-10-09 15:55:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:58,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:58,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:58,396 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:55:58,397 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:55:58,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 15:55:58,610 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:55:58,611 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-09 15:55:58,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,629 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,629 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,636 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,636 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,642 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,642 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,644 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,644 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:55:58,651 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 15:55:58,652 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:55:58,652 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:55:58,652 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:55:58,652 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:55:58,652 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:55:58,653 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:55:58,653 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:55:58,653 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:55:58,657 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 95 transitions, 202 flow [2020-10-09 15:55:58,700 INFO L129 PetriNetUnfolder]: 18/172 cut-off events. [2020-10-09 15:55:58,700 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:55:58,702 INFO L80 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 172 events. 18/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 553 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-10-09 15:55:58,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 95 transitions, 202 flow [2020-10-09 15:55:58,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 95 transitions, 202 flow [2020-10-09 15:55:58,717 INFO L129 PetriNetUnfolder]: 7/57 cut-off events. [2020-10-09 15:55:58,718 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:58,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:58,718 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:58,718 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:58,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1042182513, now seen corresponding path program 1 times [2020-10-09 15:55:58,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:58,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367859154] [2020-10-09 15:55:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:58,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:55:58,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:58,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:58,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367859154] [2020-10-09 15:55:58,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:58,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:55:58,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380619028] [2020-10-09 15:55:58,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:55:58,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:58,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:55:58,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:55:58,909 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 95 [2020-10-09 15:55:58,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 202 flow. Second operand 2 states. [2020-10-09 15:55:58,912 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:58,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 95 [2020-10-09 15:55:58,913 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:58,996 INFO L129 PetriNetUnfolder]: 5/159 cut-off events. [2020-10-09 15:55:58,996 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:55:59,001 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 159 events. 5/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 476 event pairs, 0 based on Foata normal form. 13/159 useless extension candidates. Maximal degree in co-relation 166. Up to 6 conditions per place. [2020-10-09 15:55:59,004 INFO L132 encePairwiseOnDemand]: 88/95 looper letters, 0 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2020-10-09 15:55:59,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 88 transitions, 188 flow [2020-10-09 15:55:59,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:55:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:55:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 183 transitions. [2020-10-09 15:55:59,022 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9631578947368421 [2020-10-09 15:55:59,023 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 183 transitions. [2020-10-09 15:55:59,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 183 transitions. [2020-10-09 15:55:59,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:59,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 183 transitions. [2020-10-09 15:55:59,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:55:59,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:55:59,062 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:55:59,066 INFO L185 Difference]: Start difference. First operand has 90 places, 95 transitions, 202 flow. Second operand 2 states and 183 transitions. [2020-10-09 15:55:59,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 88 transitions, 188 flow [2020-10-09 15:55:59,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 88 transitions, 186 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:59,081 INFO L241 Difference]: Finished difference. Result has 91 places, 88 transitions, 186 flow [2020-10-09 15:55:59,085 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=186, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2020-10-09 15:55:59,086 INFO L341 CegarLoopForPetriNet]: 90 programPoint places, 1 predicate places. [2020-10-09 15:55:59,086 INFO L481 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 186 flow [2020-10-09 15:55:59,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:55:59,090 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:59,091 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:59,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 15:55:59,303 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:59,303 INFO L82 PathProgramCache]: Analyzing trace with hash 521662646, now seen corresponding path program 1 times [2020-10-09 15:55:59,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:59,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29619173] [2020-10-09 15:55:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:55:59,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:55:59,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:55:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:59,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:55:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:55:59,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29619173] [2020-10-09 15:55:59,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:55:59,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:55:59,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738922870] [2020-10-09 15:55:59,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:55:59,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:55:59,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:55:59,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:55:59,502 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 95 [2020-10-09 15:55:59,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 186 flow. Second operand 4 states. [2020-10-09 15:55:59,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:55:59,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 95 [2020-10-09 15:55:59,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:55:59,642 INFO L129 PetriNetUnfolder]: 155/819 cut-off events. [2020-10-09 15:55:59,642 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:55:59,646 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 819 events. 155/819 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5674 event pairs, 51 based on Foata normal form. 0/773 useless extension candidates. Maximal degree in co-relation 1152. Up to 151 conditions per place. [2020-10-09 15:55:59,650 INFO L132 encePairwiseOnDemand]: 83/95 looper letters, 13 selfloop transitions, 15 changer transitions 3/106 dead transitions. [2020-10-09 15:55:59,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 106 transitions, 284 flow [2020-10-09 15:55:59,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:55:59,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:55:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2020-10-09 15:55:59,655 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8868421052631579 [2020-10-09 15:55:59,655 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2020-10-09 15:55:59,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2020-10-09 15:55:59,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:55:59,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2020-10-09 15:55:59,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:55:59,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:55:59,660 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:55:59,660 INFO L185 Difference]: Start difference. First operand has 91 places, 88 transitions, 186 flow. Second operand 4 states and 337 transitions. [2020-10-09 15:55:59,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 106 transitions, 284 flow [2020-10-09 15:55:59,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 106 transitions, 284 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:55:59,665 INFO L241 Difference]: Finished difference. Result has 97 places, 103 transitions, 306 flow [2020-10-09 15:55:59,666 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=97, PETRI_TRANSITIONS=103} [2020-10-09 15:55:59,666 INFO L341 CegarLoopForPetriNet]: 90 programPoint places, 7 predicate places. [2020-10-09 15:55:59,666 INFO L481 AbstractCegarLoop]: Abstraction has has 97 places, 103 transitions, 306 flow [2020-10-09 15:55:59,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:55:59,667 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:55:59,667 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:55:59,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 15:55:59,882 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:55:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:55:59,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1806009473, now seen corresponding path program 1 times [2020-10-09 15:55:59,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:55:59,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516827742] [2020-10-09 15:55:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 15:55:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:59,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:55:59,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:55:59,982 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:55:59,982 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:56:00,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 15:56:00,194 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:56:00,197 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-09 15:56:00,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,242 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:00,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 15:56:00,247 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:56:00,247 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:56:00,247 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:56:00,247 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:56:00,247 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:56:00,247 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:56:00,247 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:56:00,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:56:00,251 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 118 transitions, 257 flow [2020-10-09 15:56:00,277 INFO L129 PetriNetUnfolder]: 25/234 cut-off events. [2020-10-09 15:56:00,278 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:56:00,280 INFO L80 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 234 events. 25/234 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 856 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2020-10-09 15:56:00,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 118 transitions, 257 flow [2020-10-09 15:56:00,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 118 transitions, 257 flow [2020-10-09 15:56:00,288 INFO L129 PetriNetUnfolder]: 8/58 cut-off events. [2020-10-09 15:56:00,288 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:56:00,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:00,288 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:00,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:00,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:00,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1014502641, now seen corresponding path program 1 times [2020-10-09 15:56:00,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:00,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129633938] [2020-10-09 15:56:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:00,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:56:00,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:00,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:00,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129633938] [2020-10-09 15:56:00,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:00,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:56:00,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262178136] [2020-10-09 15:56:00,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:56:00,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:00,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:56:00,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:56:00,364 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 118 [2020-10-09 15:56:00,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 118 transitions, 257 flow. Second operand 2 states. [2020-10-09 15:56:00,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:00,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 118 [2020-10-09 15:56:00,365 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:00,399 INFO L129 PetriNetUnfolder]: 7/216 cut-off events. [2020-10-09 15:56:00,399 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:56:00,401 INFO L80 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 216 events. 7/216 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 783 event pairs, 0 based on Foata normal form. 18/216 useless extension candidates. Maximal degree in co-relation 228. Up to 8 conditions per place. [2020-10-09 15:56:00,402 INFO L132 encePairwiseOnDemand]: 109/118 looper letters, 0 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2020-10-09 15:56:00,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 239 flow [2020-10-09 15:56:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:56:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:56:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2020-10-09 15:56:00,404 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.961864406779661 [2020-10-09 15:56:00,405 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2020-10-09 15:56:00,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2020-10-09 15:56:00,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:00,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2020-10-09 15:56:00,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:56:00,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:56:00,407 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:56:00,408 INFO L185 Difference]: Start difference. First operand has 112 places, 118 transitions, 257 flow. Second operand 2 states and 227 transitions. [2020-10-09 15:56:00,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 239 flow [2020-10-09 15:56:00,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 233 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:00,412 INFO L241 Difference]: Finished difference. Result has 113 places, 109 transitions, 233 flow [2020-10-09 15:56:00,412 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=233, PETRI_PLACES=113, PETRI_TRANSITIONS=109} [2020-10-09 15:56:00,413 INFO L341 CegarLoopForPetriNet]: 112 programPoint places, 1 predicate places. [2020-10-09 15:56:00,413 INFO L481 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 233 flow [2020-10-09 15:56:00,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:56:00,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:00,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:00,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 15:56:00,626 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:00,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:00,627 INFO L82 PathProgramCache]: Analyzing trace with hash 516104086, now seen corresponding path program 1 times [2020-10-09 15:56:00,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:00,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93544348] [2020-10-09 15:56:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:00,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:56:00,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:00,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:00,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93544348] [2020-10-09 15:56:00,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:00,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:56:00,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104351627] [2020-10-09 15:56:00,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:56:00,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:00,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:56:00,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:56:00,817 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2020-10-09 15:56:00,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 109 transitions, 233 flow. Second operand 4 states. [2020-10-09 15:56:00,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:00,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2020-10-09 15:56:00,818 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:01,678 INFO L129 PetriNetUnfolder]: 1593/4736 cut-off events. [2020-10-09 15:56:01,678 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:56:01,705 INFO L80 FinitePrefix]: Finished finitePrefix Result has 7438 conditions, 4736 events. 1593/4736 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 43608 event pairs, 534 based on Foata normal form. 0/4416 useless extension candidates. Maximal degree in co-relation 7432. Up to 1221 conditions per place. [2020-10-09 15:56:01,739 INFO L132 encePairwiseOnDemand]: 102/118 looper letters, 21 selfloop transitions, 20 changer transitions 0/133 dead transitions. [2020-10-09 15:56:01,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 133 transitions, 363 flow [2020-10-09 15:56:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:56:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:56:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2020-10-09 15:56:01,742 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8834745762711864 [2020-10-09 15:56:01,743 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 417 transitions. [2020-10-09 15:56:01,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 417 transitions. [2020-10-09 15:56:01,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:01,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 417 transitions. [2020-10-09 15:56:01,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:56:01,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:56:01,746 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:56:01,746 INFO L185 Difference]: Start difference. First operand has 113 places, 109 transitions, 233 flow. Second operand 4 states and 417 transitions. [2020-10-09 15:56:01,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 133 transitions, 363 flow [2020-10-09 15:56:01,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 133 transitions, 363 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:01,750 INFO L241 Difference]: Finished difference. Result has 119 places, 129 transitions, 393 flow [2020-10-09 15:56:01,751 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=393, PETRI_PLACES=119, PETRI_TRANSITIONS=129} [2020-10-09 15:56:01,751 INFO L341 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2020-10-09 15:56:01,751 INFO L481 AbstractCegarLoop]: Abstraction has has 119 places, 129 transitions, 393 flow [2020-10-09 15:56:01,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:56:01,752 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:01,752 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:01,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 15:56:01,964 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:01,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:01,965 INFO L82 PathProgramCache]: Analyzing trace with hash 156323580, now seen corresponding path program 1 times [2020-10-09 15:56:01,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:01,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457229758] [2020-10-09 15:56:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:56:02,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:56:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:56:02,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:56:02,049 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:56:02,049 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:56:02,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 15:56:02,250 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:56:02,251 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-09 15:56:02,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:02,303 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-09 15:56:02,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:56:02,303 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:56:02,304 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:56:02,304 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:56:02,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:56:02,304 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:56:02,304 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:56:02,304 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:56:02,306 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 141 transitions, 314 flow [2020-10-09 15:56:02,338 INFO L129 PetriNetUnfolder]: 32/296 cut-off events. [2020-10-09 15:56:02,338 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:56:02,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 296 events. 32/296 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1159 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 242. Up to 10 conditions per place. [2020-10-09 15:56:02,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 141 transitions, 314 flow [2020-10-09 15:56:02,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 141 transitions, 314 flow [2020-10-09 15:56:02,354 INFO L129 PetriNetUnfolder]: 8/59 cut-off events. [2020-10-09 15:56:02,354 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:56:02,354 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:02,355 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:02,355 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:02,355 INFO L82 PathProgramCache]: Analyzing trace with hash 289865009, now seen corresponding path program 1 times [2020-10-09 15:56:02,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:02,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037955305] [2020-10-09 15:56:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:02,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:56:02,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:02,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:02,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037955305] [2020-10-09 15:56:02,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:02,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:56:02,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175532435] [2020-10-09 15:56:02,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:56:02,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:56:02,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:56:02,443 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 141 [2020-10-09 15:56:02,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 314 flow. Second operand 2 states. [2020-10-09 15:56:02,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:02,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 141 [2020-10-09 15:56:02,444 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:02,476 INFO L129 PetriNetUnfolder]: 9/273 cut-off events. [2020-10-09 15:56:02,476 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:56:02,479 INFO L80 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 273 events. 9/273 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1095 event pairs, 0 based on Foata normal form. 23/273 useless extension candidates. Maximal degree in co-relation 291. Up to 10 conditions per place. [2020-10-09 15:56:02,481 INFO L132 encePairwiseOnDemand]: 130/141 looper letters, 0 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2020-10-09 15:56:02,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 130 transitions, 292 flow [2020-10-09 15:56:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:56:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:56:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2020-10-09 15:56:02,482 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9609929078014184 [2020-10-09 15:56:02,482 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 271 transitions. [2020-10-09 15:56:02,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 271 transitions. [2020-10-09 15:56:02,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:02,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 271 transitions. [2020-10-09 15:56:02,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:56:02,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:56:02,484 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:56:02,484 INFO L185 Difference]: Start difference. First operand has 134 places, 141 transitions, 314 flow. Second operand 2 states and 271 transitions. [2020-10-09 15:56:02,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 130 transitions, 292 flow [2020-10-09 15:56:02,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 130 transitions, 280 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:02,488 INFO L241 Difference]: Finished difference. Result has 135 places, 130 transitions, 280 flow [2020-10-09 15:56:02,488 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=280, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2020-10-09 15:56:02,488 INFO L341 CegarLoopForPetriNet]: 134 programPoint places, 1 predicate places. [2020-10-09 15:56:02,488 INFO L481 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 280 flow [2020-10-09 15:56:02,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:56:02,489 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:02,489 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:02,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 15:56:02,700 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:02,700 INFO L82 PathProgramCache]: Analyzing trace with hash 887726083, now seen corresponding path program 1 times [2020-10-09 15:56:02,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:02,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806909853] [2020-10-09 15:56:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:02,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:56:02,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:02,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:02,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:02,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806909853] [2020-10-09 15:56:02,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:02,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:56:02,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216222707] [2020-10-09 15:56:02,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:56:02,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:02,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:56:02,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:56:02,871 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 141 [2020-10-09 15:56:02,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 280 flow. Second operand 4 states. [2020-10-09 15:56:02,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:02,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 141 [2020-10-09 15:56:02,872 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:08,828 INFO L129 PetriNetUnfolder]: 13491/29049 cut-off events. [2020-10-09 15:56:08,828 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-09 15:56:09,105 INFO L80 FinitePrefix]: Finished finitePrefix Result has 49051 conditions, 29049 events. 13491/29049 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 300613 event pairs, 4527 based on Foata normal form. 0/26731 useless extension candidates. Maximal degree in co-relation 49044. Up to 8871 conditions per place. [2020-10-09 15:56:09,356 INFO L132 encePairwiseOnDemand]: 121/141 looper letters, 26 selfloop transitions, 25 changer transitions 0/160 dead transitions. [2020-10-09 15:56:09,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 160 transitions, 442 flow [2020-10-09 15:56:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:56:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:56:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 497 transitions. [2020-10-09 15:56:09,359 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8812056737588653 [2020-10-09 15:56:09,359 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 497 transitions. [2020-10-09 15:56:09,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 497 transitions. [2020-10-09 15:56:09,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:09,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 497 transitions. [2020-10-09 15:56:09,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:56:09,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:56:09,362 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:56:09,362 INFO L185 Difference]: Start difference. First operand has 135 places, 130 transitions, 280 flow. Second operand 4 states and 497 transitions. [2020-10-09 15:56:09,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 160 transitions, 442 flow [2020-10-09 15:56:09,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 160 transitions, 442 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:09,367 INFO L241 Difference]: Finished difference. Result has 141 places, 155 transitions, 480 flow [2020-10-09 15:56:09,368 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=480, PETRI_PLACES=141, PETRI_TRANSITIONS=155} [2020-10-09 15:56:09,368 INFO L341 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2020-10-09 15:56:09,368 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 155 transitions, 480 flow [2020-10-09 15:56:09,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:56:09,368 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:09,369 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:09,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-09 15:56:09,585 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1907707578, now seen corresponding path program 1 times [2020-10-09 15:56:09,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:09,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343004055] [2020-10-09 15:56:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:56:09,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:56:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:56:09,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:56:09,676 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:56:09,676 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:56:09,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-09 15:56:09,884 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:56:09,885 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-09 15:56:09,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,909 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,916 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,942 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,944 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:56:09,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-09 15:56:09,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:56:09,946 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:56:09,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:56:09,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:56:09,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:56:09,946 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:56:09,946 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:56:09,946 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:56:09,948 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 164 transitions, 373 flow [2020-10-09 15:56:09,984 INFO L129 PetriNetUnfolder]: 39/358 cut-off events. [2020-10-09 15:56:09,984 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:56:09,989 INFO L80 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 358 events. 39/358 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1485 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 311. Up to 12 conditions per place. [2020-10-09 15:56:09,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 164 transitions, 373 flow [2020-10-09 15:56:09,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 164 transitions, 373 flow [2020-10-09 15:56:09,997 INFO L129 PetriNetUnfolder]: 7/54 cut-off events. [2020-10-09 15:56:09,998 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:56:09,998 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:09,998 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:09,998 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:09,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1131730383, now seen corresponding path program 1 times [2020-10-09 15:56:09,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:09,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342083806] [2020-10-09 15:56:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:10,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 15:56:10,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:10,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:10,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342083806] [2020-10-09 15:56:10,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:10,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 15:56:10,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650911975] [2020-10-09 15:56:10,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 15:56:10,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:10,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 15:56:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 15:56:10,245 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 164 [2020-10-09 15:56:10,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 164 transitions, 373 flow. Second operand 2 states. [2020-10-09 15:56:10,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:10,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 164 [2020-10-09 15:56:10,246 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:10,292 INFO L129 PetriNetUnfolder]: 11/330 cut-off events. [2020-10-09 15:56:10,292 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:56:10,296 INFO L80 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 330 events. 11/330 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1405 event pairs, 0 based on Foata normal form. 28/330 useless extension candidates. Maximal degree in co-relation 355. Up to 12 conditions per place. [2020-10-09 15:56:10,297 INFO L132 encePairwiseOnDemand]: 151/164 looper letters, 0 selfloop transitions, 0 changer transitions 0/151 dead transitions. [2020-10-09 15:56:10,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 151 transitions, 347 flow [2020-10-09 15:56:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 15:56:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 15:56:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2020-10-09 15:56:10,299 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9603658536585366 [2020-10-09 15:56:10,299 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 315 transitions. [2020-10-09 15:56:10,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 315 transitions. [2020-10-09 15:56:10,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:10,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 315 transitions. [2020-10-09 15:56:10,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 15:56:10,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 15:56:10,302 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 15:56:10,302 INFO L185 Difference]: Start difference. First operand has 156 places, 164 transitions, 373 flow. Second operand 2 states and 315 transitions. [2020-10-09 15:56:10,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 151 transitions, 347 flow [2020-10-09 15:56:10,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 151 transitions, 327 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:10,307 INFO L241 Difference]: Finished difference. Result has 157 places, 151 transitions, 327 flow [2020-10-09 15:56:10,307 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=327, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2020-10-09 15:56:10,307 INFO L341 CegarLoopForPetriNet]: 156 programPoint places, 1 predicate places. [2020-10-09 15:56:10,307 INFO L481 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 327 flow [2020-10-09 15:56:10,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 15:56:10,308 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:10,308 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:10,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-09 15:56:10,520 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:10,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1209864891, now seen corresponding path program 1 times [2020-10-09 15:56:10,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:10,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962588238] [2020-10-09 15:56:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:10,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 15:56:10,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:10,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:56:10,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962588238] [2020-10-09 15:56:10,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:10,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:56:10,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147141715] [2020-10-09 15:56:10,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:56:10,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:10,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:56:10,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:56:10,707 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2020-10-09 15:56:10,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 327 flow. Second operand 4 states. [2020-10-09 15:56:10,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:10,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2020-10-09 15:56:10,712 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:56:45,243 INFO L129 PetriNetUnfolder]: 100561/178346 cut-off events. [2020-10-09 15:56:45,244 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 15:56:46,655 INFO L80 FinitePrefix]: Finished finitePrefix Result has 315756 conditions, 178346 events. 100561/178346 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6894. Compared 1916969 event pairs, 33962 based on Foata normal form. 0/162656 useless extension candidates. Maximal degree in co-relation 315748. Up to 59669 conditions per place. [2020-10-09 15:56:47,957 INFO L132 encePairwiseOnDemand]: 140/164 looper letters, 31 selfloop transitions, 30 changer transitions 0/187 dead transitions. [2020-10-09 15:56:47,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 187 transitions, 521 flow [2020-10-09 15:56:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 15:56:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 15:56:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 577 transitions. [2020-10-09 15:56:47,960 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8795731707317073 [2020-10-09 15:56:47,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 577 transitions. [2020-10-09 15:56:47,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 577 transitions. [2020-10-09 15:56:47,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:56:47,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 577 transitions. [2020-10-09 15:56:47,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 15:56:47,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 15:56:47,965 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 15:56:47,966 INFO L185 Difference]: Start difference. First operand has 157 places, 151 transitions, 327 flow. Second operand 4 states and 577 transitions. [2020-10-09 15:56:47,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 187 transitions, 521 flow [2020-10-09 15:56:47,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 187 transitions, 521 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 15:56:47,970 INFO L241 Difference]: Finished difference. Result has 163 places, 181 transitions, 567 flow [2020-10-09 15:56:47,971 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=567, PETRI_PLACES=163, PETRI_TRANSITIONS=181} [2020-10-09 15:56:47,971 INFO L341 CegarLoopForPetriNet]: 156 programPoint places, 7 predicate places. [2020-10-09 15:56:47,971 INFO L481 AbstractCegarLoop]: Abstraction has has 163 places, 181 transitions, 567 flow [2020-10-09 15:56:47,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:56:47,971 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:56:47,972 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:56:48,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-09 15:56:48,184 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:56:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:56:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1424790686, now seen corresponding path program 1 times [2020-10-09 15:56:48,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:56:48,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613623014] [2020-10-09 15:56:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-09 15:56:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:56:48,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 32 conjunts are in the unsatisfiable core [2020-10-09 15:56:48,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:56:48,320 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-09 15:56:48,320 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,331 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:48,332 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,332 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-10-09 15:56:48,496 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:48,496 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 47 [2020-10-09 15:56:48,498 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,521 INFO L625 ElimStorePlain]: treesize reduction 12, result has 69.2 percent of original size [2020-10-09 15:56:48,523 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,523 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:16 [2020-10-09 15:56:48,548 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-09 15:56:48,548 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,553 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 15:56:48,554 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 15:56:48,554 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2020-10-09 15:56:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-09 15:56:48,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:56:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-09 15:56:49,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613623014] [2020-10-09 15:56:49,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:56:49,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 16 [2020-10-09 15:56:49,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85795586] [2020-10-09 15:56:49,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-09 15:56:49,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:56:49,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-09 15:56:49,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-09 15:56:59,607 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2020-10-09 15:56:59,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 181 transitions, 567 flow. Second operand 16 states. [2020-10-09 15:56:59,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:56:59,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2020-10-09 15:56:59,612 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:57:02,851 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 43 [2020-10-09 15:57:03,438 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-09 15:57:04,447 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown