/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:20:51,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:20:51,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:20:51,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:20:51,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:20:51,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:20:51,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:20:51,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:20:51,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:20:51,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:20:51,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:20:51,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:20:51,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:20:51,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:20:51,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:20:51,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:20:51,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:20:51,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:20:51,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:20:51,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:20:51,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:20:51,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:20:51,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:20:51,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:20:51,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:20:51,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:20:51,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:20:51,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:20:51,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:20:51,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:20:51,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:20:51,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:20:51,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:20:51,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:20:51,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:20:51,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:20:51,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:20:51,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:20:51,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:20:51,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:20:51,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:20:51,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:20:51,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:20:51,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:20:51,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:20:51,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:20:51,183 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:20:51,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:20:51,183 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:20:51,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:20:51,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:20:51,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:20:51,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:20:51,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:20:51,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:20:51,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:20:51,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:20:51,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:20:51,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:20:51,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:20:51,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:20:51,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:20:51,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:20:51,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:20:51,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:20:51,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:20:51,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:20:51,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:20:51,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:20:51,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:20:51,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:20:51,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:20:51,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:20:51,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:20:51,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:20:51,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:20:51,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:20:51,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i [2020-10-21 22:20:51,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b595055b/be929a50aeb54e40806bc22296d70102/FLAG4c3a70a1e [2020-10-21 22:20:52,110 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:20:52,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i [2020-10-21 22:20:52,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b595055b/be929a50aeb54e40806bc22296d70102/FLAG4c3a70a1e [2020-10-21 22:20:52,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b595055b/be929a50aeb54e40806bc22296d70102 [2020-10-21 22:20:52,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:20:52,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:20:52,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:20:52,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:20:52,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:20:52,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:20:52" (1/1) ... [2020-10-21 22:20:52,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5a15a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:52, skipping insertion in model container [2020-10-21 22:20:52,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:20:52" (1/1) ... [2020-10-21 22:20:52,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:20:52,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:20:53,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:20:53,121 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:20:53,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:20:53,277 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:20:53,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53 WrapperNode [2020-10-21 22:20:53,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:20:53,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:20:53,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:20:53,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:20:53,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:20:53,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:20:53,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:20:53,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:20:53,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (1/1) ... [2020-10-21 22:20:53,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:20:53,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:20:53,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:20:53,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:20:53,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (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 [2020-10-21 22:20:53,458 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock [2020-10-21 22:20:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:20:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:20:53,459 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:20:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:20:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:20:53,460 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:20:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:20:53,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:20:53,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:20:53,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:20:53,463 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:20:54,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:20:54,014 INFO L298 CfgBuilder]: Removed 43 assume(true) statements. [2020-10-21 22:20:54,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:20:54 BoogieIcfgContainer [2020-10-21 22:20:54,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:20:54,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:20:54,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:20:54,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:20:54,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:20:52" (1/3) ... [2020-10-21 22:20:54,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4558d14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:20:54, skipping insertion in model container [2020-10-21 22:20:54,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:20:53" (2/3) ... [2020-10-21 22:20:54,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4558d14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:20:54, skipping insertion in model container [2020-10-21 22:20:54,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:20:54" (3/3) ... [2020-10-21 22:20:54,026 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2020-10-21 22:20:54,039 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:20:54,039 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:20:54,047 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-21 22:20:54,048 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:20:54,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,094 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,095 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,095 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,095 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,095 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,096 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:20:54,108 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:20:54,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:20:54,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:20:54,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:20:54,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:20:54,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:20:54,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:20:54,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:20:54,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:20:54,148 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:20:54,167 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:20:54,170 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 195 transitions, 398 flow [2020-10-21 22:20:54,173 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 195 transitions, 398 flow [2020-10-21 22:20:54,176 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 165 places, 195 transitions, 398 flow [2020-10-21 22:20:54,308 INFO L129 PetriNetUnfolder]: 53/295 cut-off events. [2020-10-21 22:20:54,309 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:20:54,317 INFO L80 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 295 events. 53/295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1253 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 157. Up to 6 conditions per place. [2020-10-21 22:20:54,328 INFO L116 LiptonReduction]: Number of co-enabled transitions 11130 [2020-10-21 22:20:57,621 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-21 22:20:58,096 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-21 22:20:58,231 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 22:20:59,042 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 135 [2020-10-21 22:20:59,355 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-21 22:20:59,410 INFO L131 LiptonReduction]: Checked pairs total: 19592 [2020-10-21 22:20:59,410 INFO L133 LiptonReduction]: Total number of compositions: 181 [2020-10-21 22:20:59,416 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 75 transitions, 158 flow [2020-10-21 22:20:59,447 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 580 states. [2020-10-21 22:20:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2020-10-21 22:20:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:20:59,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:20:59,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:20:59,458 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:20:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:20:59,464 INFO L82 PathProgramCache]: Analyzing trace with hash 24263140, now seen corresponding path program 1 times [2020-10-21 22:20:59,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:20:59,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959897856] [2020-10-21 22:20:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:20:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:20:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:20:59,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959897856] [2020-10-21 22:20:59,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:20:59,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:20:59,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299244224] [2020-10-21 22:20:59,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:20:59,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:20:59,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:20:59,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:20:59,709 INFO L87 Difference]: Start difference. First operand 580 states. Second operand 3 states. [2020-10-21 22:20:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:20:59,791 INFO L93 Difference]: Finished difference Result 558 states and 1080 transitions. [2020-10-21 22:20:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:20:59,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:20:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:20:59,819 INFO L225 Difference]: With dead ends: 558 [2020-10-21 22:20:59,820 INFO L226 Difference]: Without dead ends: 459 [2020-10-21 22:20:59,821 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 [2020-10-21 22:20:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-21 22:20:59,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2020-10-21 22:20:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-10-21 22:20:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 891 transitions. [2020-10-21 22:20:59,898 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 891 transitions. Word has length 4 [2020-10-21 22:20:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:20:59,899 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 891 transitions. [2020-10-21 22:20:59,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:20:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 891 transitions. [2020-10-21 22:20:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:20:59,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:20:59,900 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:20:59,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:20:59,901 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:20:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:20:59,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1770533937, now seen corresponding path program 1 times [2020-10-21 22:20:59,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:20:59,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287394347] [2020-10-21 22:20:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:20:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:20:59,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:00,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:00,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:21:00,045 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:21:00,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:21:00,048 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:21:00,048 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:21:00,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,060 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,060 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,060 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,065 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,065 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,065 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,065 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,066 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,066 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,068 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,068 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,068 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,068 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,068 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,069 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,069 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,069 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,069 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,072 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:00,082 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:21:00,083 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:21:00,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:00,083 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:00,083 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:00,083 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:00,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:00,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:00,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:00,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:00,087 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:00,087 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 250 transitions, 518 flow [2020-10-21 22:21:00,087 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 250 transitions, 518 flow [2020-10-21 22:21:00,088 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 209 places, 250 transitions, 518 flow [2020-10-21 22:21:00,161 INFO L129 PetriNetUnfolder]: 88/473 cut-off events. [2020-10-21 22:21:00,162 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:21:00,171 INFO L80 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 473 events. 88/473 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2296 event pairs, 0 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 297. Up to 9 conditions per place. [2020-10-21 22:21:00,201 INFO L116 LiptonReduction]: Number of co-enabled transitions 29044 [2020-10-21 22:21:04,860 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-21 22:21:04,983 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-21 22:21:05,844 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2020-10-21 22:21:06,120 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-21 22:21:06,262 INFO L131 LiptonReduction]: Checked pairs total: 73930 [2020-10-21 22:21:06,262 INFO L133 LiptonReduction]: Total number of compositions: 224 [2020-10-21 22:21:06,262 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 115 transitions, 248 flow [2020-10-21 22:21:07,400 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 16175 states. [2020-10-21 22:21:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 16175 states. [2020-10-21 22:21:07,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:21:07,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:07,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:21:07,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:07,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:07,402 INFO L82 PathProgramCache]: Analyzing trace with hash 40431007, now seen corresponding path program 1 times [2020-10-21 22:21:07,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:07,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002366294] [2020-10-21 22:21:07,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:21:07,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002366294] [2020-10-21 22:21:07,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:21:07,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:21:07,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844030782] [2020-10-21 22:21:07,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:21:07,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:07,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:21:07,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:21:07,455 INFO L87 Difference]: Start difference. First operand 16175 states. Second operand 3 states. [2020-10-21 22:21:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:07,760 INFO L93 Difference]: Finished difference Result 16154 states and 46319 transitions. [2020-10-21 22:21:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:21:07,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:21:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:07,863 INFO L225 Difference]: With dead ends: 16154 [2020-10-21 22:21:07,864 INFO L226 Difference]: Without dead ends: 13228 [2020-10-21 22:21:07,864 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 [2020-10-21 22:21:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13228 states. [2020-10-21 22:21:08,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13228 to 13228. [2020-10-21 22:21:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13228 states. [2020-10-21 22:21:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13228 states to 13228 states and 38045 transitions. [2020-10-21 22:21:08,431 INFO L78 Accepts]: Start accepts. Automaton has 13228 states and 38045 transitions. Word has length 4 [2020-10-21 22:21:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:08,431 INFO L481 AbstractCegarLoop]: Abstraction has 13228 states and 38045 transitions. [2020-10-21 22:21:08,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:21:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 13228 states and 38045 transitions. [2020-10-21 22:21:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:21:08,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:08,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:21:08,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:21:08,433 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:08,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1193367252, now seen corresponding path program 1 times [2020-10-21 22:21:08,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:08,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969848385] [2020-10-21 22:21:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:21:08,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969848385] [2020-10-21 22:21:08,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368614966] [2020-10-21 22:21:08,475 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 [2020-10-21 22:21:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:08,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:21:08,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:21:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:21:08,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:21:08,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-21 22:21:08,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247820212] [2020-10-21 22:21:08,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:21:08,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:08,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:21:08,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:21:08,559 INFO L87 Difference]: Start difference. First operand 13228 states and 38045 transitions. Second operand 3 states. [2020-10-21 22:21:08,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:08,766 INFO L93 Difference]: Finished difference Result 13138 states and 37790 transitions. [2020-10-21 22:21:08,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:21:08,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:21:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:08,827 INFO L225 Difference]: With dead ends: 13138 [2020-10-21 22:21:08,827 INFO L226 Difference]: Without dead ends: 13138 [2020-10-21 22:21:08,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:21:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2020-10-21 22:21:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 13138. [2020-10-21 22:21:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13138 states. [2020-10-21 22:21:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13138 states to 13138 states and 37790 transitions. [2020-10-21 22:21:10,151 INFO L78 Accepts]: Start accepts. Automaton has 13138 states and 37790 transitions. Word has length 8 [2020-10-21 22:21:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:10,152 INFO L481 AbstractCegarLoop]: Abstraction has 13138 states and 37790 transitions. [2020-10-21 22:21:10,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:21:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 13138 states and 37790 transitions. [2020-10-21 22:21:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:21:10,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:10,155 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:21:10,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:21:10,369 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:10,370 INFO L82 PathProgramCache]: Analyzing trace with hash -521659003, now seen corresponding path program 1 times [2020-10-21 22:21:10,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:10,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861972900] [2020-10-21 22:21:10,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:10,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:10,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:10,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:21:10,418 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:21:10,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:21:10,419 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:21:10,421 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:21:10,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,431 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,431 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,431 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,442 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,448 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,449 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,456 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:10,459 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:21:10,460 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:21:10,460 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:10,460 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:10,460 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:10,460 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:10,461 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:10,461 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:10,461 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:10,461 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:10,464 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:10,464 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 305 transitions, 640 flow [2020-10-21 22:21:10,464 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 305 transitions, 640 flow [2020-10-21 22:21:10,464 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 253 places, 305 transitions, 640 flow [2020-10-21 22:21:10,561 INFO L129 PetriNetUnfolder]: 128/682 cut-off events. [2020-10-21 22:21:10,561 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:21:10,574 INFO L80 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 682 events. 128/682 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3499 event pairs, 1 based on Foata normal form. 0/534 useless extension candidates. Maximal degree in co-relation 481. Up to 16 conditions per place. [2020-10-21 22:21:10,619 INFO L116 LiptonReduction]: Number of co-enabled transitions 52470 [2020-10-21 22:21:11,454 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-21 22:21:15,698 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-21 22:21:16,146 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-21 22:21:17,755 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-21 22:21:17,942 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-21 22:21:19,006 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2020-10-21 22:21:19,277 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-21 22:21:19,400 INFO L131 LiptonReduction]: Checked pairs total: 128567 [2020-10-21 22:21:19,400 INFO L133 LiptonReduction]: Total number of compositions: 261 [2020-10-21 22:21:19,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 153 transitions, 336 flow [2020-10-21 22:24:29,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 387672 states. [2020-10-21 22:24:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 387672 states. [2020-10-21 22:24:29,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:24:29,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:24:29,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:24:29,981 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:24:29,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:24:29,982 INFO L82 PathProgramCache]: Analyzing trace with hash 59589614, now seen corresponding path program 1 times [2020-10-21 22:24:29,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:24:29,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067471871] [2020-10-21 22:24:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:24:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:24:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:24:30,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067471871] [2020-10-21 22:24:30,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:24:30,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:24:30,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589380857] [2020-10-21 22:24:30,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:24:30,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:24:30,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:24:30,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:24:30,028 INFO L87 Difference]: Start difference. First operand 387672 states. Second operand 3 states. [2020-10-21 22:24:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:24:41,094 INFO L93 Difference]: Finished difference Result 387650 states and 1478639 transitions. [2020-10-21 22:24:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:24:41,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:24:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:24:42,530 INFO L225 Difference]: With dead ends: 387650 [2020-10-21 22:24:42,530 INFO L226 Difference]: Without dead ends: 317426 [2020-10-21 22:24:42,531 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 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown