/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:18:47,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:18:47,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:18:47,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 11:18:47,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:18:47,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:18:47,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:18:47,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:18:47,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:18:47,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:18:47,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:18:47,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:18:47,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:18:47,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:18:47,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:18:47,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:18:47,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 11:18:47,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:18:47,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:18:47,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:18:47,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 11:18:47,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:18:47,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:18:47,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:18:47,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:18:47,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:18:47,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:18:47,969 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:18:47,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:18:47,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:18:47,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:18:47,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:18:47,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:18:47,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:18:47,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:18:47,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:18:47,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:18:47,974 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:18:47,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:18:48,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:18:48,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:18:48,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:18:48,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:18:48,288 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:18:48,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i [2021-06-05 11:18:48,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50242a92/0455e02cf2d14297a61bcfd3a7904f12/FLAG54b717fff [2021-06-05 11:18:48,829 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:18:48,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i [2021-06-05 11:18:48,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50242a92/0455e02cf2d14297a61bcfd3a7904f12/FLAG54b717fff [2021-06-05 11:18:49,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50242a92/0455e02cf2d14297a61bcfd3a7904f12 [2021-06-05 11:18:49,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:18:49,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:18:49,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:18:49,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:18:49,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:18:49,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eeb80ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49, skipping insertion in model container [2021-06-05 11:18:49,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:18:49,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:18:49,482 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i[29913,29926] [2021-06-05 11:18:49,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:18:49,509 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:18:49,536 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_02-simple_racefree.i[29913,29926] [2021-06-05 11:18:49,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:18:49,606 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:18:49,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49 WrapperNode [2021-06-05 11:18:49,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:18:49,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:18:49,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:18:49,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:18:49,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:18:49,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:18:49,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:18:49,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:18:49,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... [2021-06-05 11:18:49,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:18:49,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:18:49,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:18:49,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:18:49,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-05 11:18:49,759 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-05 11:18:49,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:18:49,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:18:49,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:18:49,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:18:49,761 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 11:18:50,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:18:50,133 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 11:18:50,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:18:50 BoogieIcfgContainer [2021-06-05 11:18:50,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:18:50,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:18:50,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:18:50,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:18:50,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:18:49" (1/3) ... [2021-06-05 11:18:50,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c6708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:18:50, skipping insertion in model container [2021-06-05 11:18:50,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:18:49" (2/3) ... [2021-06-05 11:18:50,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417c6708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:18:50, skipping insertion in model container [2021-06-05 11:18:50,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:18:50" (3/3) ... [2021-06-05 11:18:50,140 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_02-simple_racefree.i [2021-06-05 11:18:50,145 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:18:50,145 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:18:50,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 11:18:50,146 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:18:50,167 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,167 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,167 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,168 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,169 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,170 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,171 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,172 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,172 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,172 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,172 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,172 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,173 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,175 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,176 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,177 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,177 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:50,183 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 11:18:50,201 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:18:50,217 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:18:50,217 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:18:50,217 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:18:50,217 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:18:50,217 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:18:50,218 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:18:50,218 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:18:50,218 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:18:50,227 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 106 transitions, 220 flow [2021-06-05 11:18:50,273 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 871 states, 865 states have (on average 2.253179190751445) internal successors, (1949), 870 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 871 states, 865 states have (on average 2.253179190751445) internal successors, (1949), 870 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:18:50,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:50,290 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:50,290 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:50,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:50,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1503250697, now seen corresponding path program 1 times [2021-06-05 11:18:50,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:50,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246502695] [2021-06-05 11:18:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:50,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:50,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246502695] [2021-06-05 11:18:50,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246502695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:50,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:18:50,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:18:50,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663656120] [2021-06-05 11:18:50,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:18:50,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:50,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:18:50,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:18:50,465 INFO L87 Difference]: Start difference. First operand has 871 states, 865 states have (on average 2.253179190751445) internal successors, (1949), 870 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:50,495 INFO L93 Difference]: Finished difference Result 847 states and 1573 transitions. [2021-06-05 11:18:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:18:50,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:18:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:50,506 INFO L225 Difference]: With dead ends: 847 [2021-06-05 11:18:50,507 INFO L226 Difference]: Without dead ends: 416 [2021-06-05 11:18:50,508 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:18:50,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-06-05 11:18:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2021-06-05 11:18:50,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 414 states have (on average 1.7995169082125604) internal successors, (745), 415 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 745 transitions. [2021-06-05 11:18:50,561 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 745 transitions. Word has length 43 [2021-06-05 11:18:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:50,561 INFO L482 AbstractCegarLoop]: Abstraction has 416 states and 745 transitions. [2021-06-05 11:18:50,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 745 transitions. [2021-06-05 11:18:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:18:50,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:50,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:50,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:18:50,563 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:50,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:50,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1699764202, now seen corresponding path program 1 times [2021-06-05 11:18:50,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:50,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969166775] [2021-06-05 11:18:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:50,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:50,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969166775] [2021-06-05 11:18:50,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969166775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:50,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:18:50,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:18:50,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387329721] [2021-06-05 11:18:50,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:18:50,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:50,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:18:50,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:18:50,679 INFO L87 Difference]: Start difference. First operand 416 states and 745 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:50,705 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2021-06-05 11:18:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:18:50,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:18:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:50,711 INFO L225 Difference]: With dead ends: 406 [2021-06-05 11:18:50,711 INFO L226 Difference]: Without dead ends: 406 [2021-06-05 11:18:50,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:18:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-06-05 11:18:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2021-06-05 11:18:50,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.8148148148148149) internal successors, (735), 405 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 735 transitions. [2021-06-05 11:18:50,741 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 735 transitions. Word has length 43 [2021-06-05 11:18:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:50,742 INFO L482 AbstractCegarLoop]: Abstraction has 406 states and 735 transitions. [2021-06-05 11:18:50,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 735 transitions. [2021-06-05 11:18:50,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 11:18:50,748 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:50,748 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:50,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:18:50,749 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:50,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:50,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1435392302, now seen corresponding path program 1 times [2021-06-05 11:18:50,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:50,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042857078] [2021-06-05 11:18:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:50,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:50,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042857078] [2021-06-05 11:18:50,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042857078] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:50,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862780480] [2021-06-05 11:18:50,869 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 [2021-06-05 11:18:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:50,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:18:50,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:51,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862780480] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:51,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:18:51,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:18:51,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100888455] [2021-06-05 11:18:51,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:18:51,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:51,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:18:51,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:18:51,209 INFO L87 Difference]: Start difference. First operand 406 states and 735 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:51,250 INFO L93 Difference]: Finished difference Result 176 states and 285 transitions. [2021-06-05 11:18:51,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:18:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 11:18:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:51,251 INFO L225 Difference]: With dead ends: 176 [2021-06-05 11:18:51,252 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:18:51,253 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:18:51,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:18:51,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:18:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:18:51,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2021-06-05 11:18:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:51,254 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:18:51,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:18:51,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:18:51,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-05 11:18:51,465 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:18:51,466 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:18:51,467 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:18:51,467 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:18:51,467 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:18:51,467 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:18:51,467 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:18:51,468 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:18:51,468 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:18:51,468 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:18:51,470 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 106 transitions, 220 flow [2021-06-05 11:18:51,489 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 871 states, 865 states have (on average 2.253179190751445) internal successors, (1949), 870 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:51,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 871 states, 865 states have (on average 2.253179190751445) internal successors, (1949), 870 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:51,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:18:51,491 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:51,492 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:51,492 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:18:51,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:51,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1990210468, now seen corresponding path program 1 times [2021-06-05 11:18:51,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:51,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803842950] [2021-06-05 11:18:51,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:18:51,529 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:18:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:18:51,542 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:18:51,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:18:51,562 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:18:51,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 11:18:51,562 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:18:51,562 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:18:51,562 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 11:18:51,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,572 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,572 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,572 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,573 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,573 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,575 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,576 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,577 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,578 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,578 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,578 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,578 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,579 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,580 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,581 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,581 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,581 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,583 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,583 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,583 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,583 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,584 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,585 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,585 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,585 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,585 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,585 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,586 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,587 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,588 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,589 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,590 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,590 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,591 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,591 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,593 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,594 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:51,600 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 11:18:51,601 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:18:51,603 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:18:51,603 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:18:51,603 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:18:51,603 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:18:51,603 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:18:51,603 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:18:51,603 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:18:51,603 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:18:51,609 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 136 transitions, 290 flow [2021-06-05 11:18:52,964 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 19754 states, 19745 states have (on average 3.471562420866042) internal successors, (68546), 19753 states have internal predecessors, (68546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 19754 states, 19745 states have (on average 3.471562420866042) internal successors, (68546), 19753 states have internal predecessors, (68546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:18:53,011 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:53,011 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:53,012 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:53,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:53,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1567231361, now seen corresponding path program 1 times [2021-06-05 11:18:53,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:53,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750365849] [2021-06-05 11:18:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:53,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:53,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750365849] [2021-06-05 11:18:53,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750365849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:53,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:18:53,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:18:53,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989901339] [2021-06-05 11:18:53,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:18:53,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:53,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:18:53,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:18:53,089 INFO L87 Difference]: Start difference. First operand has 19754 states, 19745 states have (on average 3.471562420866042) internal successors, (68546), 19753 states have internal predecessors, (68546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:53,227 INFO L93 Difference]: Finished difference Result 19201 states and 54205 transitions. [2021-06-05 11:18:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:18:53,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:18:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:53,338 INFO L225 Difference]: With dead ends: 19201 [2021-06-05 11:18:53,338 INFO L226 Difference]: Without dead ends: 8972 [2021-06-05 11:18:53,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:18:53,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8972 states. [2021-06-05 11:18:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8972 to 8972. [2021-06-05 11:18:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8969 states have (on average 2.7957408852714907) internal successors, (25075), 8971 states have internal predecessors, (25075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 25075 transitions. [2021-06-05 11:18:53,685 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 25075 transitions. Word has length 43 [2021-06-05 11:18:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:53,686 INFO L482 AbstractCegarLoop]: Abstraction has 8972 states and 25075 transitions. [2021-06-05 11:18:53,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 25075 transitions. [2021-06-05 11:18:53,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:18:53,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:53,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:53,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:18:53,687 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:53,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:53,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1763744866, now seen corresponding path program 1 times [2021-06-05 11:18:53,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:53,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018238726] [2021-06-05 11:18:53,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:53,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:53,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018238726] [2021-06-05 11:18:53,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018238726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:53,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:18:53,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:18:53,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783964986] [2021-06-05 11:18:53,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:18:53,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:53,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:18:53,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:18:53,712 INFO L87 Difference]: Start difference. First operand 8972 states and 25075 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:53,786 INFO L93 Difference]: Finished difference Result 8962 states and 25065 transitions. [2021-06-05 11:18:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:18:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:18:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:53,825 INFO L225 Difference]: With dead ends: 8962 [2021-06-05 11:18:53,825 INFO L226 Difference]: Without dead ends: 8962 [2021-06-05 11:18:53,825 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:18:53,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8962 states. [2021-06-05 11:18:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8962 to 8962. [2021-06-05 11:18:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8962 states, 8960 states have (on average 2.7974330357142856) internal successors, (25065), 8961 states have internal predecessors, (25065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8962 states to 8962 states and 25065 transitions. [2021-06-05 11:18:54,179 INFO L78 Accepts]: Start accepts. Automaton has 8962 states and 25065 transitions. Word has length 43 [2021-06-05 11:18:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:54,180 INFO L482 AbstractCegarLoop]: Abstraction has 8962 states and 25065 transitions. [2021-06-05 11:18:54,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 8962 states and 25065 transitions. [2021-06-05 11:18:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 11:18:54,181 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:54,181 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:54,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 11:18:54,181 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:54,182 INFO L82 PathProgramCache]: Analyzing trace with hash 285520318, now seen corresponding path program 1 times [2021-06-05 11:18:54,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:54,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049209468] [2021-06-05 11:18:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:54,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:54,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049209468] [2021-06-05 11:18:54,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049209468] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:54,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265028975] [2021-06-05 11:18:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:54,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:18:54,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:54,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265028975] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:54,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:18:54,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:18:54,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631238949] [2021-06-05 11:18:54,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:18:54,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:54,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:18:54,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:18:54,473 INFO L87 Difference]: Start difference. First operand 8962 states and 25065 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:54,543 INFO L93 Difference]: Finished difference Result 8732 states and 24615 transitions. [2021-06-05 11:18:54,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:18:54,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 11:18:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:54,579 INFO L225 Difference]: With dead ends: 8732 [2021-06-05 11:18:54,579 INFO L226 Difference]: Without dead ends: 8732 [2021-06-05 11:18:54,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:18:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2021-06-05 11:18:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 8732. [2021-06-05 11:18:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8732 states, 8731 states have (on average 2.819264689039056) internal successors, (24615), 8731 states have internal predecessors, (24615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:54,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8732 states to 8732 states and 24615 transitions. [2021-06-05 11:18:54,931 INFO L78 Accepts]: Start accepts. Automaton has 8732 states and 24615 transitions. Word has length 53 [2021-06-05 11:18:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:54,932 INFO L482 AbstractCegarLoop]: Abstraction has 8732 states and 24615 transitions. [2021-06-05 11:18:54,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8732 states and 24615 transitions. [2021-06-05 11:18:54,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 11:18:54,935 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:54,936 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:55,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:55,153 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:55,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:55,153 INFO L82 PathProgramCache]: Analyzing trace with hash 227063229, now seen corresponding path program 1 times [2021-06-05 11:18:55,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:55,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549923954] [2021-06-05 11:18:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:18:55,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:55,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549923954] [2021-06-05 11:18:55,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549923954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:55,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:18:55,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:18:55,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029319331] [2021-06-05 11:18:55,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:18:55,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:18:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:18:55,234 INFO L87 Difference]: Start difference. First operand 8732 states and 24615 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:55,352 INFO L93 Difference]: Finished difference Result 9999 states and 27813 transitions. [2021-06-05 11:18:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:18:55,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 11:18:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:55,373 INFO L225 Difference]: With dead ends: 9999 [2021-06-05 11:18:55,374 INFO L226 Difference]: Without dead ends: 8412 [2021-06-05 11:18:55,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:18:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8412 states. [2021-06-05 11:18:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8412 to 8412. [2021-06-05 11:18:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8412 states, 8411 states have (on average 2.8123885388182144) internal successors, (23655), 8411 states have internal predecessors, (23655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8412 states to 8412 states and 23655 transitions. [2021-06-05 11:18:55,698 INFO L78 Accepts]: Start accepts. Automaton has 8412 states and 23655 transitions. Word has length 63 [2021-06-05 11:18:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:55,698 INFO L482 AbstractCegarLoop]: Abstraction has 8412 states and 23655 transitions. [2021-06-05 11:18:55,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8412 states and 23655 transitions. [2021-06-05 11:18:55,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 11:18:55,705 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:55,705 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:55,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 11:18:55,706 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:55,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:55,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1916773779, now seen corresponding path program 1 times [2021-06-05 11:18:55,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:55,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23080852] [2021-06-05 11:18:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:55,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:55,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23080852] [2021-06-05 11:18:55,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23080852] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:55,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089451644] [2021-06-05 11:18:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:55,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:18:55,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:56,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089451644] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:56,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:18:56,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:18:56,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333401690] [2021-06-05 11:18:56,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:18:56,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:56,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:18:56,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:18:56,005 INFO L87 Difference]: Start difference. First operand 8412 states and 23655 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:56,072 INFO L93 Difference]: Finished difference Result 3442 states and 9205 transitions. [2021-06-05 11:18:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:18:56,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-05 11:18:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:56,072 INFO L225 Difference]: With dead ends: 3442 [2021-06-05 11:18:56,072 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:18:56,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 56.4ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:18:56,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:18:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:18:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:56,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:18:56,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-06-05 11:18:56,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:56,073 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:18:56,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:18:56,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:18:56,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:56,298 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:18:56,298 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:18:56,299 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:18:56,299 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:18:56,299 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:18:56,299 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:18:56,299 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:18:56,299 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:18:56,299 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:18:56,299 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:18:56,301 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 136 transitions, 290 flow [2021-06-05 11:18:57,144 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 19754 states, 19745 states have (on average 3.471562420866042) internal successors, (68546), 19753 states have internal predecessors, (68546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 19754 states, 19745 states have (on average 3.471562420866042) internal successors, (68546), 19753 states have internal predecessors, (68546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:18:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 11:18:57,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:57,180 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:57,180 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:18:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash 538651189, now seen corresponding path program 1 times [2021-06-05 11:18:57,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:57,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181155173] [2021-06-05 11:18:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:18:57,192 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:18:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:18:57,202 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:18:57,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:18:57,211 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:18:57,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 11:18:57,211 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:18:57,211 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:18:57,211 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 11:18:57,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,222 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,225 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,226 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,230 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,231 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,233 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,234 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,235 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,237 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,238 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,238 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,239 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:18:57,245 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-05 11:18:57,246 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:18:57,247 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:18:57,247 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:18:57,247 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:18:57,247 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:18:57,247 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:18:57,247 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:18:57,247 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:18:57,247 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:18:57,249 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 166 transitions, 362 flow [2021-06-05 11:26:29,638 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 461239 states, 461225 states have (on average 4.669920320884601) internal successors, (2153884), 461238 states have internal predecessors, (2153884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:26:30,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 461239 states, 461225 states have (on average 4.669920320884601) internal successors, (2153884), 461238 states have internal predecessors, (2153884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:26:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:26:30,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:26:30,319 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:26:30,319 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:26:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:26:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1639061349, now seen corresponding path program 1 times [2021-06-05 11:26:30,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:26:30,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162133361] [2021-06-05 11:26:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:26:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:26:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:26:30,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:26:30,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162133361] [2021-06-05 11:26:30,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162133361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:26:30,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:26:30,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:26:30,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16878958] [2021-06-05 11:26:30,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:26:30,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:26:30,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:26:30,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:26:30,849 INFO L87 Difference]: Start difference. First operand has 461239 states, 461225 states have (on average 4.669920320884601) internal successors, (2153884), 461238 states have internal predecessors, (2153884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:26:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:26:37,125 INFO L93 Difference]: Finished difference Result 448519 states and 1689194 transitions. [2021-06-05 11:26:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:26:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:26:37,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:26:39,364 INFO L225 Difference]: With dead ends: 448519 [2021-06-05 11:26:39,364 INFO L226 Difference]: Without dead ends: 205760 [2021-06-05 11:26:39,365 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:27:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205760 states. [2021-06-05 11:27:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205760 to 205760. [2021-06-05 11:27:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205760 states, 205756 states have (on average 3.7563764847683663) internal successors, (772897), 205759 states have internal predecessors, (772897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:07,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205760 states to 205760 states and 772897 transitions. [2021-06-05 11:27:07,540 INFO L78 Accepts]: Start accepts. Automaton has 205760 states and 772897 transitions. Word has length 43 [2021-06-05 11:27:07,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:27:07,540 INFO L482 AbstractCegarLoop]: Abstraction has 205760 states and 772897 transitions. [2021-06-05 11:27:07,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:07,540 INFO L276 IsEmpty]: Start isEmpty. Operand 205760 states and 772897 transitions. [2021-06-05 11:27:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 11:27:07,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:27:07,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:27:07,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 11:27:07,541 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:27:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:27:07,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1442547844, now seen corresponding path program 1 times [2021-06-05 11:27:07,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:27:07,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365864821] [2021-06-05 11:27:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:27:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:27:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:27:07,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:27:07,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365864821] [2021-06-05 11:27:07,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365864821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:27:07,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:27:07,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:27:07,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247082084] [2021-06-05 11:27:07,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:27:07,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:27:07,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:27:07,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:27:07,571 INFO L87 Difference]: Start difference. First operand 205760 states and 772897 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:27:09,397 INFO L93 Difference]: Finished difference Result 205750 states and 772887 transitions. [2021-06-05 11:27:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:27:09,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-05 11:27:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:27:10,284 INFO L225 Difference]: With dead ends: 205750 [2021-06-05 11:27:10,285 INFO L226 Difference]: Without dead ends: 205750 [2021-06-05 11:27:10,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:27:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205750 states. [2021-06-05 11:27:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205750 to 205750. [2021-06-05 11:27:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205750 states, 205747 states have (on average 3.756492196727048) internal successors, (772887), 205749 states have internal predecessors, (772887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205750 states to 205750 states and 772887 transitions. [2021-06-05 11:27:36,360 INFO L78 Accepts]: Start accepts. Automaton has 205750 states and 772887 transitions. Word has length 43 [2021-06-05 11:27:36,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:27:36,360 INFO L482 AbstractCegarLoop]: Abstraction has 205750 states and 772887 transitions. [2021-06-05 11:27:36,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 205750 states and 772887 transitions. [2021-06-05 11:27:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 11:27:36,361 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:27:36,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:27:36,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 11:27:36,362 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:27:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:27:36,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1850524856, now seen corresponding path program 1 times [2021-06-05 11:27:36,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:27:36,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487778608] [2021-06-05 11:27:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:27:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:27:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:27:36,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:27:36,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487778608] [2021-06-05 11:27:36,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487778608] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:27:36,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463790608] [2021-06-05 11:27:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:27:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:27:36,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:27:36,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:27:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:27:36,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463790608] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:27:36,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:27:36,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:27:36,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685113617] [2021-06-05 11:27:36,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:27:36,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:27:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:27:36,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:27:36,577 INFO L87 Difference]: Start difference. First operand 205750 states and 772887 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:27:39,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:27:39,166 INFO L93 Difference]: Finished difference Result 205520 states and 772437 transitions. [2021-06-05 11:27:39,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:27:39,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 11:27:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:27:40,678 INFO L225 Difference]: With dead ends: 205520 [2021-06-05 11:27:40,678 INFO L226 Difference]: Without dead ends: 205520 [2021-06-05 11:27:40,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 29.6ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:28:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205520 states. [2021-06-05 11:28:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205520 to 205520. [2021-06-05 11:28:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205520 states, 205518 states have (on average 3.7584883075934954) internal successors, (772437), 205519 states have internal predecessors, (772437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205520 states to 205520 states and 772437 transitions. [2021-06-05 11:28:08,983 INFO L78 Accepts]: Start accepts. Automaton has 205520 states and 772437 transitions. Word has length 53 [2021-06-05 11:28:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:28:08,983 INFO L482 AbstractCegarLoop]: Abstraction has 205520 states and 772437 transitions. [2021-06-05 11:28:08,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 205520 states and 772437 transitions. [2021-06-05 11:28:08,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 11:28:08,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:28:08,987 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:28:09,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:28:09,188 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:28:09,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:28:09,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1180752149, now seen corresponding path program 1 times [2021-06-05 11:28:09,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:28:09,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306448279] [2021-06-05 11:28:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:28:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:28:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:28:09,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:28:09,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306448279] [2021-06-05 11:28:09,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306448279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:28:09,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:28:09,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:28:09,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121916803] [2021-06-05 11:28:09,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:28:09,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:28:09,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:28:09,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:28:09,232 INFO L87 Difference]: Start difference. First operand 205520 states and 772437 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:11,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:28:11,109 INFO L93 Difference]: Finished difference Result 240728 states and 894983 transitions. [2021-06-05 11:28:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:28:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 11:28:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:28:12,561 INFO L225 Difference]: With dead ends: 240728 [2021-06-05 11:28:12,561 INFO L226 Difference]: Without dead ends: 202640 [2021-06-05 11:28:12,561 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:28:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202640 states. [2021-06-05 11:28:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202640 to 202640. [2021-06-05 11:28:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202640 states, 202638 states have (on average 3.7566349845537363) internal successors, (761237), 202639 states have internal predecessors, (761237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202640 states to 202640 states and 761237 transitions. [2021-06-05 11:28:38,744 INFO L78 Accepts]: Start accepts. Automaton has 202640 states and 761237 transitions. Word has length 63 [2021-06-05 11:28:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:28:38,745 INFO L482 AbstractCegarLoop]: Abstraction has 202640 states and 761237 transitions. [2021-06-05 11:28:38,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 202640 states and 761237 transitions. [2021-06-05 11:28:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-05 11:28:38,760 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:28:38,760 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:28:38,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 11:28:38,760 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:28:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:28:38,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1513353061, now seen corresponding path program 1 times [2021-06-05 11:28:38,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:28:38,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553204389] [2021-06-05 11:28:38,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:28:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:28:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:28:38,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:28:38,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553204389] [2021-06-05 11:28:38,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553204389] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:28:38,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765713898] [2021-06-05 11:28:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:28:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:28:38,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:28:38,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:28:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:28:39,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765713898] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:28:39,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:28:39,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:28:39,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552907112] [2021-06-05 11:28:39,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:28:39,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:28:39,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:28:39,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:28:39,046 INFO L87 Difference]: Start difference. First operand 202640 states and 761237 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:28:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:28:40,817 INFO L93 Difference]: Finished difference Result 197670 states and 746787 transitions. [2021-06-05 11:28:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:28:40,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-05 11:28:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:28:42,109 INFO L225 Difference]: With dead ends: 197670 [2021-06-05 11:28:42,109 INFO L226 Difference]: Without dead ends: 197670 [2021-06-05 11:28:42,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 51.8ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:29:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197670 states. [2021-06-05 11:29:06,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197670 to 197670. [2021-06-05 11:29:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197670 states, 197669 states have (on average 3.7779672078069906) internal successors, (746787), 197669 states have internal predecessors, (746787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:07,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197670 states to 197670 states and 746787 transitions. [2021-06-05 11:29:07,809 INFO L78 Accepts]: Start accepts. Automaton has 197670 states and 746787 transitions. Word has length 71 [2021-06-05 11:29:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:07,810 INFO L482 AbstractCegarLoop]: Abstraction has 197670 states and 746787 transitions. [2021-06-05 11:29:07,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:07,810 INFO L276 IsEmpty]: Start isEmpty. Operand 197670 states and 746787 transitions. [2021-06-05 11:29:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-06-05 11:29:07,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:07,957 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:29:08,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 11:29:08,174 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:08,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:08,175 INFO L82 PathProgramCache]: Analyzing trace with hash -608885661, now seen corresponding path program 1 times [2021-06-05 11:29:08,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:08,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371383584] [2021-06-05 11:29:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:08,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:08,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371383584] [2021-06-05 11:29:08,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371383584] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:08,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449184133] [2021-06-05 11:29:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:09,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 11:29:09,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:09,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449184133] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:09,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:29:09,405 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-05 11:29:09,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468040948] [2021-06-05 11:29:09,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 11:29:09,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:09,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 11:29:09,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-05 11:29:09,406 INFO L87 Difference]: Start difference. First operand 197670 states and 746787 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:10,231 INFO L93 Difference]: Finished difference Result 78560 states and 286217 transitions. [2021-06-05 11:29:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 11:29:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-06-05 11:29:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:10,231 INFO L225 Difference]: With dead ends: 78560 [2021-06-05 11:29:10,231 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:29:10,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 124.0ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-06-05 11:29:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:29:10,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:29:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:29:10,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2021-06-05 11:29:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:10,232 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:29:10,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:29:10,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:29:10,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:10,456 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:29:10,456 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:10,460 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:10,461 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:10,461 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:10,461 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:10,461 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:10,461 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:10,461 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:10,461 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:29:10,462 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 166 transitions, 362 flow Received shutdown request... [2021-06-05 11:32:12,711 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:32:12,711 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 11:32:12,712 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2021-06-05 11:32:12,714 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:32:12,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:32:12 BasicIcfg [2021-06-05 11:32:12,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:32:12,715 INFO L168 Benchmark]: Toolchain (without parser) took 803558.81 ms. Allocated memory was 346.0 MB in the beginning and 15.2 GB in the end (delta: 14.8 GB). Free memory was 308.5 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 8.8 GB. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 346.0 MB. Free memory is still 326.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.22 ms. Allocated memory is still 346.0 MB. Free memory was 308.2 MB in the beginning and 308.6 MB in the end (delta: -365.7 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.92 ms. Allocated memory is still 346.0 MB. Free memory was 308.6 MB in the beginning and 306.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: Boogie Preprocessor took 41.36 ms. Allocated memory is still 346.0 MB. Free memory was 306.5 MB in the beginning and 305.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: RCFGBuilder took 438.60 ms. Allocated memory is still 346.0 MB. Free memory was 305.4 MB in the beginning and 277.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-05 11:32:12,715 INFO L168 Benchmark]: TraceAbstraction took 802578.79 ms. Allocated memory was 346.0 MB in the beginning and 15.2 GB in the end (delta: 14.8 GB). Free memory was 277.1 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 8.8 GB. Max. memory is 16.0 GB. [2021-06-05 11:32:12,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 346.0 MB. Free memory is still 326.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 445.22 ms. Allocated memory is still 346.0 MB. Free memory was 308.2 MB in the beginning and 308.6 MB in the end (delta: -365.7 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.92 ms. Allocated memory is still 346.0 MB. Free memory was 308.6 MB in the beginning and 306.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 41.36 ms. Allocated memory is still 346.0 MB. Free memory was 306.5 MB in the beginning and 305.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 438.60 ms. Allocated memory is still 346.0 MB. Free memory was 305.4 MB in the beginning and 277.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 802578.79 ms. Allocated memory was 346.0 MB in the beginning and 15.2 GB in the end (delta: 14.8 GB). Free memory was 277.1 MB in the beginning and 10.0 GB in the end (delta: -9.7 GB). Peak memory consumption was 8.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 700]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 147 places, 166 transitions, 362 flow. Already constructed 324130 states. Currently 24435 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 118 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1250.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 23.1ms, AutomataDifference: 138.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 55.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 249 SDtfs, 215 SDslu, 207 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.6ms SsaConstructionTime, 118.6ms SatisfiabilityAnalysisTime, 412.1ms InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 2 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 141 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4695.4ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 58.1ms, AutomataDifference: 713.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1361.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 635 SDtfs, 700 SDslu, 1280 SDs, 0 SdLazy, 105 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 115.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19754occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1375.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.2ms SsaConstructionTime, 73.4ms SatisfiabilityAnalysisTime, 428.6ms InterpolantComputationTime, 397 NumberOfCodeBlocks, 397 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 6 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 12/38 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 164 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 613208.8ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 825.1ms, AutomataDifference: 23062.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 452412.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 975 SDtfs, 1534 SDslu, 2473 SDs, 0 SdLazy, 165 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 232.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=461239occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 134435.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 59.3ms SsaConstructionTime, 138.5ms SatisfiabilityAnalysisTime, 1413.2ms InterpolantComputationTime, 559 NumberOfCodeBlocks, 559 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 550 ConstructedInterpolants, 0 QuantifiedInterpolants, 909 SizeOfPredicates, 12 NumberOfNonLiveVariables, 498 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 12/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 118 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 95.0ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 2.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.9ms SsaConstructionTime, 30.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 141 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 912.2ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 35.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 845.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19754occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.4ms SsaConstructionTime, 7.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 164 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 182250.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 182249.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown