/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_60-invariant_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:01:06,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:01:06,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:01:06,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:01:06,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:01:06,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:01:06,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:01:06,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:01:06,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:01:06,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:01:06,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:01:06,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:01:06,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:01:06,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:01:06,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:01:06,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:01:06,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:01:06,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:01:06,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:01:06,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:01:06,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:01:06,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:01:06,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:01:06,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:01:06,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:01:06,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:01:06,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:01:06,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:01:06,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:01:06,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:01:06,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:01:06,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:01:06,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:01:06,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:01:06,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:01:06,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:01:06,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 01:01:06,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:01:06,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:01:06,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:01:06,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:01:06,430 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:01:06,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:01:06,431 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:01:06,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:01:06,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:01:06,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:01:06,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:01:06,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:01:06,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:01:06,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:01:06,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:01:06,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:01:06,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:01:06,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:01:06,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:01:06,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:01:06,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:01:06,436 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:01:06,436 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:01:06,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:01:06,436 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:01:06,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:01:06,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:01:06,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:01:06,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:01:06,749 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:01:06,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_60-invariant_racefree.i [2020-10-22 01:01:06,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678723e80/26f8c6ecf39143439af53031392d9da3/FLAGb441039a0 [2020-10-22 01:01:07,356 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:01:07,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_60-invariant_racefree.i [2020-10-22 01:01:07,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678723e80/26f8c6ecf39143439af53031392d9da3/FLAGb441039a0 [2020-10-22 01:01:07,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678723e80/26f8c6ecf39143439af53031392d9da3 [2020-10-22 01:01:07,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:01:07,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:01:07,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:01:07,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:01:07,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:01:07,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:01:07" (1/1) ... [2020-10-22 01:01:07,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d246408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:07, skipping insertion in model container [2020-10-22 01:01:07,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:01:07" (1/1) ... [2020-10-22 01:01:07,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:01:07,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:01:08,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:01:08,185 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:01:08,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:01:08,326 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:01:08,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08 WrapperNode [2020-10-22 01:01:08,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:01:08,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:01:08,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:01:08,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:01:08,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:01:08,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:01:08,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:01:08,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:01:08,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (1/1) ... [2020-10-22 01:01:08,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:01:08,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:01:08,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:01:08,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:01:08,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (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 [2020-10-22 01:01:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 01:01:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:01:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-22 01:01:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:01:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-22 01:01:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-22 01:01:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:01:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:01:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:01:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:01:08,570 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 01:01:09,072 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:01:09,072 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-22 01:01:09,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:01:09 BoogieIcfgContainer [2020-10-22 01:01:09,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:01:09,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:01:09,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:01:09,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:01:09,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:01:07" (1/3) ... [2020-10-22 01:01:09,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d86eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:01:09, skipping insertion in model container [2020-10-22 01:01:09,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:01:08" (2/3) ... [2020-10-22 01:01:09,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d86eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:01:09, skipping insertion in model container [2020-10-22 01:01:09,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:01:09" (3/3) ... [2020-10-22 01:01:09,084 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2020-10-22 01:01:09,097 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:01:09,097 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:01:09,106 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-22 01:01:09,107 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:01:09,136 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,136 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,137 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,137 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,137 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,138 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,138 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,138 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,139 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,140 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,140 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,141 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,141 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,142 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,142 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,142 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,142 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,143 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,143 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,143 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,144 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,144 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,144 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,145 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,148 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,148 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,149 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,149 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,149 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,149 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,149 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,150 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,150 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,150 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,150 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,151 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,151 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,151 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:09,161 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-22 01:01:09,175 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:01:09,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:01:09,198 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:01:09,198 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:01:09,198 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:01:09,198 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:01:09,198 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:01:09,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:01:09,199 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:01:09,215 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:01:09,216 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 141 transitions, 290 flow [2020-10-22 01:01:09,219 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 141 transitions, 290 flow [2020-10-22 01:01:09,221 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 120 places, 141 transitions, 290 flow [2020-10-22 01:01:09,314 INFO L129 PetriNetUnfolder]: 36/198 cut-off events. [2020-10-22 01:01:09,315 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-22 01:01:09,329 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 198 events. 36/198 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 706 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 110. Up to 6 conditions per place. [2020-10-22 01:01:09,342 INFO L116 LiptonReduction]: Number of co-enabled transitions 6076 [2020-10-22 01:01:10,564 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-22 01:01:11,065 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-22 01:01:11,172 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-22 01:01:11,322 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-22 01:01:11,446 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-22 01:01:11,981 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-22 01:01:12,183 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 01:01:12,212 INFO L131 LiptonReduction]: Checked pairs total: 15328 [2020-10-22 01:01:12,212 INFO L133 LiptonReduction]: Total number of compositions: 106 [2020-10-22 01:01:12,217 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 64 transitions, 136 flow [2020-10-22 01:01:12,245 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 483 states. [2020-10-22 01:01:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states. [2020-10-22 01:01:12,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 01:01:12,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:01:12,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 01:01:12,256 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:01:12,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:01:12,261 INFO L82 PathProgramCache]: Analyzing trace with hash 538070494, now seen corresponding path program 1 times [2020-10-22 01:01:12,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:01:12,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65828121] [2020-10-22 01:01:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:01:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:01:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:01:12,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65828121] [2020-10-22 01:01:12,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:01:12,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:01:12,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [33009114] [2020-10-22 01:01:12,518 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:01:12,522 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:01:12,536 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 01:01:12,537 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:01:12,543 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:01:12,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:01:12,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:01:12,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:01:12,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:12,563 INFO L87 Difference]: Start difference. First operand 483 states. Second operand 3 states. [2020-10-22 01:01:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:01:12,647 INFO L93 Difference]: Finished difference Result 467 states and 907 transitions. [2020-10-22 01:01:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:01:12,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 01:01:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:01:12,675 INFO L225 Difference]: With dead ends: 467 [2020-10-22 01:01:12,676 INFO L226 Difference]: Without dead ends: 373 [2020-10-22 01:01:12,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-22 01:01:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2020-10-22 01:01:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-22 01:01:12,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 717 transitions. [2020-10-22 01:01:12,748 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 717 transitions. Word has length 5 [2020-10-22 01:01:12,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:01:12,748 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 717 transitions. [2020-10-22 01:01:12,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:01:12,748 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 717 transitions. [2020-10-22 01:01:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 01:01:12,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:01:12,749 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-22 01:01:12,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:01:12,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:01:12,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:01:12,750 INFO L82 PathProgramCache]: Analyzing trace with hash -514604952, now seen corresponding path program 1 times [2020-10-22 01:01:12,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:01:12,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863427609] [2020-10-22 01:01:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:01:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:01:12,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:01:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:01:12,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:01:12,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:01:12,843 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:01:12,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:01:12,846 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:01:12,847 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 01:01:12,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,877 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,877 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,878 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,879 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,879 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,879 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,879 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,879 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,882 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,882 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,882 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,882 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,883 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,883 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,883 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,883 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,883 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,888 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:12,897 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-22 01:01:12,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 01:01:12,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:01:12,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:01:12,898 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:01:12,898 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:01:12,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:01:12,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:01:12,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:01:12,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:01:12,901 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:01:12,901 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 192 transitions, 402 flow [2020-10-22 01:01:12,902 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 192 transitions, 402 flow [2020-10-22 01:01:12,902 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 161 places, 192 transitions, 402 flow [2020-10-22 01:01:12,961 INFO L129 PetriNetUnfolder]: 62/329 cut-off events. [2020-10-22 01:01:12,962 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-22 01:01:12,972 INFO L80 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 329 events. 62/329 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1366 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 200. Up to 9 conditions per place. [2020-10-22 01:01:12,990 INFO L116 LiptonReduction]: Number of co-enabled transitions 18032 [2020-10-22 01:01:14,622 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-22 01:01:15,331 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-22 01:01:15,525 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 01:01:15,560 INFO L131 LiptonReduction]: Checked pairs total: 49033 [2020-10-22 01:01:15,561 INFO L133 LiptonReduction]: Total number of compositions: 153 [2020-10-22 01:01:15,561 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 95 transitions, 208 flow [2020-10-22 01:01:16,246 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9719 states. [2020-10-22 01:01:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states. [2020-10-22 01:01:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 01:01:16,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:01:16,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 01:01:16,248 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:01:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:01:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash 914065710, now seen corresponding path program 1 times [2020-10-22 01:01:16,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:01:16,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664438198] [2020-10-22 01:01:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:01:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:01:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:01:16,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664438198] [2020-10-22 01:01:16,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:01:16,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:01:16,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [718011198] [2020-10-22 01:01:16,289 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:01:16,289 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:01:16,290 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 01:01:16,290 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:01:16,291 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:01:16,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:01:16,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:01:16,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:01:16,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:16,292 INFO L87 Difference]: Start difference. First operand 9719 states. Second operand 3 states. [2020-10-22 01:01:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:01:16,429 INFO L93 Difference]: Finished difference Result 9304 states and 26980 transitions. [2020-10-22 01:01:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:01:16,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 01:01:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:01:16,495 INFO L225 Difference]: With dead ends: 9304 [2020-10-22 01:01:16,495 INFO L226 Difference]: Without dead ends: 8076 [2020-10-22 01:01:16,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:16,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8076 states. [2020-10-22 01:01:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8076 to 8076. [2020-10-22 01:01:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8076 states. [2020-10-22 01:01:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8076 states to 8076 states and 23307 transitions. [2020-10-22 01:01:16,909 INFO L78 Accepts]: Start accepts. Automaton has 8076 states and 23307 transitions. Word has length 5 [2020-10-22 01:01:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:01:16,909 INFO L481 AbstractCegarLoop]: Abstraction has 8076 states and 23307 transitions. [2020-10-22 01:01:16,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:01:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 8076 states and 23307 transitions. [2020-10-22 01:01:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:01:16,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:01:16,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:01:16,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:01:16,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:01:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:01:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash 991108910, now seen corresponding path program 1 times [2020-10-22 01:01:16,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:01:16,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926737401] [2020-10-22 01:01:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:01:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:01:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:01:16,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926737401] [2020-10-22 01:01:16,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:01:16,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:01:16,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [115030051] [2020-10-22 01:01:16,953 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:01:16,953 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:01:16,954 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:01:16,954 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:01:16,955 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:01:16,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:01:16,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:01:16,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:01:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:16,956 INFO L87 Difference]: Start difference. First operand 8076 states and 23307 transitions. Second operand 3 states. [2020-10-22 01:01:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:01:17,160 INFO L93 Difference]: Finished difference Result 7090 states and 19080 transitions. [2020-10-22 01:01:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:01:17,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-22 01:01:17,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:01:17,210 INFO L225 Difference]: With dead ends: 7090 [2020-10-22 01:01:17,210 INFO L226 Difference]: Without dead ends: 6382 [2020-10-22 01:01:17,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:01:17,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2020-10-22 01:01:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 5907. [2020-10-22 01:01:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5907 states. [2020-10-22 01:01:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 16140 transitions. [2020-10-22 01:01:17,489 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 16140 transitions. Word has length 7 [2020-10-22 01:01:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:01:17,489 INFO L481 AbstractCegarLoop]: Abstraction has 5907 states and 16140 transitions. [2020-10-22 01:01:17,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:01:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 16140 transitions. [2020-10-22 01:01:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 01:01:17,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:01:17,491 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-22 01:01:17,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:01:17,492 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:01:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:01:17,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1385718460, now seen corresponding path program 1 times [2020-10-22 01:01:17,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:01:17,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633846113] [2020-10-22 01:01:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:01:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:01:17,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:01:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:01:17,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:01:17,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:01:17,574 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:01:17,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:01:17,575 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:01:17,577 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 01:01:17,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,586 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,587 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,588 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,590 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,590 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,592 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,592 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,592 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,593 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,595 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,605 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,605 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,607 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,613 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:01:17,617 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-22 01:01:17,617 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-22 01:01:17,617 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:01:17,618 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:01:17,618 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:01:17,618 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:01:17,618 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:01:17,618 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:01:17,618 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:01:17,618 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:01:17,621 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:01:17,621 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 243 transitions, 516 flow [2020-10-22 01:01:17,622 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 243 transitions, 516 flow [2020-10-22 01:01:17,622 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 202 places, 243 transitions, 516 flow [2020-10-22 01:01:17,719 INFO L129 PetriNetUnfolder]: 93/491 cut-off events. [2020-10-22 01:01:17,720 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-22 01:01:17,731 INFO L80 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 491 events. 93/491 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2202 event pairs, 1 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 337. Up to 16 conditions per place. [2020-10-22 01:01:17,769 INFO L116 LiptonReduction]: Number of co-enabled transitions 34692 [2020-10-22 01:01:19,915 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-22 01:01:20,071 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-22 01:01:20,489 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-10-22 01:01:20,674 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 01:01:20,699 INFO L131 LiptonReduction]: Checked pairs total: 101989 [2020-10-22 01:01:20,700 INFO L133 LiptonReduction]: Total number of compositions: 183 [2020-10-22 01:01:20,700 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 127 transitions, 284 flow [2020-10-22 01:02:26,306 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198303 states. [2020-10-22 01:02:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 198303 states. [2020-10-22 01:02:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 01:02:26,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:02:26,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 01:02:26,307 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:02:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:02:26,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1370620648, now seen corresponding path program 1 times [2020-10-22 01:02:26,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:02:26,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003482236] [2020-10-22 01:02:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:02:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:02:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:02:26,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003482236] [2020-10-22 01:02:26,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:02:26,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:02:26,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2111774638] [2020-10-22 01:02:26,360 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:02:26,360 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:02:26,361 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 01:02:26,361 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:02:26,361 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:02:26,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:02:26,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:02:26,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:02:26,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:02:26,362 INFO L87 Difference]: Start difference. First operand 198303 states. Second operand 3 states. [2020-10-22 01:02:30,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:02:30,942 INFO L93 Difference]: Finished difference Result 198288 states and 770650 transitions. [2020-10-22 01:02:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:02:30,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-22 01:02:30,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:02:32,029 INFO L225 Difference]: With dead ends: 198288 [2020-10-22 01:02:32,029 INFO L226 Difference]: Without dead ends: 177328 [2020-10-22 01:02:32,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:02:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177328 states. [2020-10-22 01:02:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177328 to 177328. [2020-10-22 01:02:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177328 states. [2020-10-22 01:02:53,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177328 states to 177328 states and 686971 transitions. [2020-10-22 01:02:53,056 INFO L78 Accepts]: Start accepts. Automaton has 177328 states and 686971 transitions. Word has length 5 [2020-10-22 01:02:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:02:53,057 INFO L481 AbstractCegarLoop]: Abstraction has 177328 states and 686971 transitions. [2020-10-22 01:02:53,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:02:53,057 INFO L276 IsEmpty]: Start isEmpty. Operand 177328 states and 686971 transitions. [2020-10-22 01:02:53,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:02:53,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:02:53,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:02:53,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:02:53,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:02:53,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:02:53,058 INFO L82 PathProgramCache]: Analyzing trace with hash -874209977, now seen corresponding path program 1 times [2020-10-22 01:02:53,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:02:53,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837054760] [2020-10-22 01:02:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:02:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:02:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:02:53,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837054760] [2020-10-22 01:02:53,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:02:53,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:02:53,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [253059775] [2020-10-22 01:02:53,084 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:02:53,085 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:02:53,086 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:02:53,086 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:02:53,087 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:02:53,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:02:53,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:02:53,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:02:53,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:02:53,088 INFO L87 Difference]: Start difference. First operand 177328 states and 686971 transitions. Second operand 3 states. [2020-10-22 01:02:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:02:54,027 INFO L93 Difference]: Finished difference Result 166530 states and 598529 transitions. [2020-10-22 01:02:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:02:54,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-22 01:02:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:02:54,661 INFO L225 Difference]: With dead ends: 166530 [2020-10-22 01:02:54,661 INFO L226 Difference]: Without dead ends: 156638 [2020-10-22 01:02:54,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:03:04,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156638 states. [2020-10-22 01:03:07,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156638 to 142781. [2020-10-22 01:03:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142781 states. [2020-10-22 01:03:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142781 states to 142781 states and 521567 transitions. [2020-10-22 01:03:07,890 INFO L78 Accepts]: Start accepts. Automaton has 142781 states and 521567 transitions. Word has length 7 [2020-10-22 01:03:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:03:07,890 INFO L481 AbstractCegarLoop]: Abstraction has 142781 states and 521567 transitions. [2020-10-22 01:03:07,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:03:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 142781 states and 521567 transitions. [2020-10-22 01:03:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 01:03:07,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:03:07,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:03:07,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 01:03:07,893 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:03:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:03:07,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2127489653, now seen corresponding path program 1 times [2020-10-22 01:03:07,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:03:07,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284780956] [2020-10-22 01:03:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:03:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:03:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:03:07,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284780956] [2020-10-22 01:03:07,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621462634] [2020-10-22 01:03:07,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 01:03:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:03:08,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 01:03:08,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 01:03:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:03:08,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 01:03:08,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-22 01:03:08,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [626940397] [2020-10-22 01:03:08,058 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:03:08,059 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:03:08,062 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 26 transitions. [2020-10-22 01:03:08,062 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:03:08,152 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:03:08,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:03:08,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:03:08,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:03:08,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:03:08,153 INFO L87 Difference]: Start difference. First operand 142781 states and 521567 transitions. Second operand 4 states. [2020-10-22 01:03:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:03:10,237 INFO L93 Difference]: Finished difference Result 142557 states and 521145 transitions. [2020-10-22 01:03:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:03:10,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-22 01:03:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:03:10,634 INFO L225 Difference]: With dead ends: 142557 [2020-10-22 01:03:10,634 INFO L226 Difference]: Without dead ends: 142557 [2020-10-22 01:03:10,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:03:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142557 states. [2020-10-22 01:03:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142557 to 142557. [2020-10-22 01:03:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142557 states. [2020-10-22 01:03:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142557 states to 142557 states and 521145 transitions. [2020-10-22 01:03:18,055 INFO L78 Accepts]: Start accepts. Automaton has 142557 states and 521145 transitions. Word has length 14 [2020-10-22 01:03:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:03:18,056 INFO L481 AbstractCegarLoop]: Abstraction has 142557 states and 521145 transitions. [2020-10-22 01:03:18,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:03:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 142557 states and 521145 transitions. [2020-10-22 01:03:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 01:03:18,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:03:18,058 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-22 01:03:23,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-10-22 01:03:23,106 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:03:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:03:23,106 INFO L82 PathProgramCache]: Analyzing trace with hash -844883899, now seen corresponding path program 1 times [2020-10-22 01:03:23,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:03:23,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646900713] [2020-10-22 01:03:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:03:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:03:23,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:03:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:03:23,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:03:23,180 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:03:23,180 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:03:23,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 01:03:23,181 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:03:23,181 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 01:03:23,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,206 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,206 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,209 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,210 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,226 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,235 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,237 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,239 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,240 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:03:23,248 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-22 01:03:23,249 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-22 01:03:23,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:03:23,249 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:03:23,249 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:03:23,249 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:03:23,249 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:03:23,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:03:23,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:03:23,250 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:03:23,253 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:03:23,253 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 294 transitions, 632 flow [2020-10-22 01:03:23,253 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 294 transitions, 632 flow [2020-10-22 01:03:23,254 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 243 places, 294 transitions, 632 flow [2020-10-22 01:03:23,396 INFO L129 PetriNetUnfolder]: 136/717 cut-off events. [2020-10-22 01:03:23,396 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-22 01:03:23,414 INFO L80 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 717 events. 136/717 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3354 event pairs, 6 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 511. Up to 32 conditions per place. [2020-10-22 01:03:23,469 INFO L116 LiptonReduction]: Number of co-enabled transitions 56448 [2020-10-22 01:03:25,787 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-22 01:03:26,257 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-22 01:03:26,427 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 01:03:26,536 INFO L131 LiptonReduction]: Checked pairs total: 172744 [2020-10-22 01:03:26,536 INFO L133 LiptonReduction]: Total number of compositions: 224 [2020-10-22 01:03:26,537 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 158 transitions, 360 flow Received shutdown request... [2020-10-22 01:05:04,067 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 01:05:04,070 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 01:05:04,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:05:04 BasicIcfg [2020-10-22 01:05:04,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:05:04,072 INFO L168 Benchmark]: Toolchain (without parser) took 236403.99 ms. Allocated memory was 146.3 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 100.8 MB in the beginning and 694.5 MB in the end (delta: -593.7 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,073 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.80 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 159.7 MB in the end (delta: -59.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.75 ms. Allocated memory is still 203.9 MB. Free memory was 159.7 MB in the beginning and 157.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,075 INFO L168 Benchmark]: Boogie Preprocessor took 65.77 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,076 INFO L168 Benchmark]: RCFGBuilder took 585.95 ms. Allocated memory is still 203.9 MB. Free memory was 155.2 MB in the beginning and 123.5 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,076 INFO L168 Benchmark]: TraceAbstraction took 234994.36 ms. Allocated memory was 203.9 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 123.5 MB in the beginning and 694.5 MB in the end (delta: -571.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-22 01:05:04,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.80 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 159.7 MB in the end (delta: -59.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 92.75 ms. Allocated memory is still 203.9 MB. Free memory was 159.7 MB in the beginning and 157.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.77 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 585.95 ms. Allocated memory is still 203.9 MB. Free memory was 155.2 MB in the beginning and 123.5 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234994.36 ms. Allocated memory was 203.9 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 123.5 MB in the beginning and 694.5 MB in the end (delta: -571.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2944 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 270 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.9s, 120 PlacesBefore, 47 PlacesAfterwards, 141 TransitionsBefore, 64 TransitionsAfterwards, 6076 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 4 ChoiceCompositions, 106 TotalNumberOfCompositions, 15328 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 8924 VarBasedMoverChecksPositive, 107 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 709 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.6s, 161 PlacesBefore, 70 PlacesAfterwards, 192 TransitionsBefore, 95 TransitionsAfterwards, 18032 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 36 ConcurrentYvCompositions, 6 ChoiceCompositions, 153 TotalNumberOfCompositions, 49033 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 17057 VarBasedMoverChecksPositive, 119 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 1559 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.0s, 202 PlacesBefore, 92 PlacesAfterwards, 243 TransitionsBefore, 127 TransitionsAfterwards, 34692 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 46 ConcurrentYvCompositions, 6 ChoiceCompositions, 183 TotalNumberOfCompositions, 101989 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 28565 VarBasedMoverChecksPositive, 157 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2630 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 243 PlacesBefore, 114 PlacesAfterwards, 294 TransitionsBefore, 158 TransitionsAfterwards, 56448 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 137 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 7 ChoiceCompositions, 224 TotalNumberOfCompositions, 172744 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 114 places, 158 transitions, 360 flow. Already constructed 320478 states. Currently 92628 states in worklist.. - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 114 places, 158 transitions, 360 flow. Already constructed 320478 states. Currently 92628 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 117 locations, 2 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 234.7s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 175.8s, HoareTripleCheckerStatistics: 506 SDtfs, 205 SDslu, 371 SDs, 0 SdLazy, 108 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198303occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 42.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 14332 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 1 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown