/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sigma.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 21:03:41,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 21:03:41,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 21:03:41,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 21:03:41,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 21:03:41,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 21:03:41,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 21:03:41,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 21:03:41,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 21:03:41,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 21:03:41,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 21:03:41,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 21:03:41,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 21:03:41,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 21:03:41,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 21:03:41,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 21:03:41,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 21:03:41,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 21:03:41,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 21:03:41,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 21:03:41,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 21:03:41,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 21:03:41,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 21:03:41,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 21:03:41,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-13 21:03:41,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-13 21:03:41,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-13 21:03:41,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-13 21:03:41,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-13 21:03:41,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-13 21:03:41,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-13 21:03:41,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-13 21:03:41,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-13 21:03:41,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-13 21:03:41,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-13 21:03:41,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-13 21:03:41,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-13 21:03:41,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-13 21:03:41,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 21:03:41,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 21:03:41,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 21:03:41,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf [2021-07-13 21:03:41,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 21:03:41,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 21:03:41,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 21:03:41,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 21:03:41,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 21:03:41,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 21:03:41,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 21:03:41,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 21:03:41,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 21:03:41,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-13 21:03:41,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 21:03:41,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 21:03:41,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 21:03:41,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 21:03:41,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 21:03:41,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 21:03:41,364 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 21:03:41,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2021-07-13 21:03:41,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13e49651/67ab4520ff4c4010b74e42caecf0ae8f/FLAG999b53bf1 [2021-07-13 21:03:41,865 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 21:03:41,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2021-07-13 21:03:41,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13e49651/67ab4520ff4c4010b74e42caecf0ae8f/FLAG999b53bf1 [2021-07-13 21:03:41,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13e49651/67ab4520ff4c4010b74e42caecf0ae8f [2021-07-13 21:03:41,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 21:03:41,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 21:03:41,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 21:03:41,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 21:03:41,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 21:03:41,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:03:41" (1/1) ... [2021-07-13 21:03:41,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a667e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:41, skipping insertion in model container [2021-07-13 21:03:41,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:03:41" (1/1) ... [2021-07-13 21:03:41,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 21:03:41,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 21:03:42,283 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2021-07-13 21:03:42,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 21:03:42,304 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 21:03:42,337 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2021-07-13 21:03:42,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 21:03:42,403 INFO L208 MainTranslator]: Completed translation [2021-07-13 21:03:42,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42 WrapperNode [2021-07-13 21:03:42,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 21:03:42,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 21:03:42,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 21:03:42,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 21:03:42,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 21:03:42,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 21:03:42,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 21:03:42,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 21:03:42,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (1/1) ... [2021-07-13 21:03:42,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 21:03:42,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 21:03:42,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 21:03:42,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 21:03:42,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (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 [2021-07-13 21:03:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 21:03:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-07-13 21:03:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 21:03:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 21:03:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 21:03:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-13 21:03:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-13 21:03:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 21:03:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-07-13 21:03:42,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-07-13 21:03:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 21:03:42,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 21:03:42,564 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 21:03:42,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 21:03:42,834 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-07-13 21:03:42,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:03:42 BoogieIcfgContainer [2021-07-13 21:03:42,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 21:03:42,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 21:03:42,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 21:03:42,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 21:03:42,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:03:41" (1/3) ... [2021-07-13 21:03:42,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cd4354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:03:42, skipping insertion in model container [2021-07-13 21:03:42,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:03:42" (2/3) ... [2021-07-13 21:03:42,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cd4354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:03:42, skipping insertion in model container [2021-07-13 21:03:42,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:03:42" (3/3) ... [2021-07-13 21:03:42,840 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2021-07-13 21:03:42,844 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 21:03:42,844 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 21:03:42,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 21:03:42,845 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 21:03:42,859 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,860 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,861 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,861 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,861 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,861 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,862 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,862 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,863 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,863 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:42,867 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-13 21:03:42,881 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:03:42,911 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:03:42,911 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:03:42,911 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:03:42,911 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:03:42,911 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:03:42,911 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:03:42,911 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:03:42,912 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:03:42,918 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 92 transitions, 192 flow [2021-07-13 21:03:42,939 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 281 states, 276 states have (on average 1.7391304347826086) internal successors, (480), 280 states have internal predecessors, (480), 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) [2021-07-13 21:03:42,945 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:42,948 INFO L82 PathProgramCache]: Analyzing trace with hash -449122666, now seen corresponding path program 1 times [2021-07-13 21:03:42,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:42,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691807296] [2021-07-13 21:03:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:43,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:43,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691807296] [2021-07-13 21:03:43,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691807296] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:43,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:43,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 21:03:43,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617286338] [2021-07-13 21:03:43,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 21:03:43,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:43,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 21:03:43,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 21:03:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,072 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:43,072 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) [2021-07-13 21:03:43,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 21:03:43,077 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:43,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1031341464, now seen corresponding path program 1 times [2021-07-13 21:03:43,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:43,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047919495] [2021-07-13 21:03:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:43,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:43,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047919495] [2021-07-13 21:03:43,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047919495] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:43,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:43,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-13 21:03:43,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275301555] [2021-07-13 21:03:43,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-13 21:03:43,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:43,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-13 21:03:43,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-13 21:03:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,150 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:43,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-07-13 21:03:43,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:43,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 21:03:43,193 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:43,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1068581949, now seen corresponding path program 1 times [2021-07-13 21:03:43,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:43,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948352505] [2021-07-13 21:03:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:43,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:43,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948352505] [2021-07-13 21:03:43,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948352505] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:43,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:43,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 21:03:43,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514007951] [2021-07-13 21:03:43,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 21:03:43,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 21:03:43,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-13 21:03:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,287 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:43,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-07-13 21:03:43,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:43,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:43,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 21:03:43,419 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:43,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:43,420 INFO L82 PathProgramCache]: Analyzing trace with hash 440668613, now seen corresponding path program 1 times [2021-07-13 21:03:43,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:43,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088409377] [2021-07-13 21:03:43,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:43,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:43,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088409377] [2021-07-13 21:03:43,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088409377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:43,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890525550] [2021-07-13 21:03:43,554 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 [2021-07-13 21:03:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:43,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 21:03:43,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:43,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:43,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890525550] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:43,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:43,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-07-13 21:03:43,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281891966] [2021-07-13 21:03:43,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 21:03:43,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:43,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 21:03:43,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 21:03:43,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,917 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:43,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2021-07-13 21:03:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:43,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:44,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:44,189 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:44,189 INFO L82 PathProgramCache]: Analyzing trace with hash -2107954742, now seen corresponding path program 1 times [2021-07-13 21:03:44,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:44,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128311833] [2021-07-13 21:03:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:44,209 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:44,236 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:44,261 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 21:03:44,261 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 21:03:44,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 21:03:44,264 WARN L243 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-13 21:03:44,264 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-07-13 21:03:44,271 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,271 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,271 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,271 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,272 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,273 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,274 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,274 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,275 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,275 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,275 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,275 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:44,283 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-13 21:03:44,283 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:03:44,292 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:03:44,292 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:03:44,292 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:03:44,292 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:03:44,292 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:03:44,292 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:03:44,292 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:03:44,292 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:03:44,293 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 98 transitions, 214 flow [2021-07-13 21:03:44,320 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1531 states, 1522 states have (on average 2.444809461235217) internal successors, (3721), 1530 states have internal predecessors, (3721), 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) [2021-07-13 21:03:44,321 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:44,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:44,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1505806920, now seen corresponding path program 1 times [2021-07-13 21:03:44,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:44,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612487997] [2021-07-13 21:03:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:44,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:44,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612487997] [2021-07-13 21:03:44,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612487997] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:44,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:44,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 21:03:44,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526700125] [2021-07-13 21:03:44,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 21:03:44,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:44,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 21:03:44,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 21:03:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,367 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:44,367 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) [2021-07-13 21:03:44,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 21:03:44,368 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:44,368 INFO L82 PathProgramCache]: Analyzing trace with hash -339704374, now seen corresponding path program 1 times [2021-07-13 21:03:44,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:44,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568626062] [2021-07-13 21:03:44,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:44,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:44,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:44,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568626062] [2021-07-13 21:03:44,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568626062] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:44,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:44,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-13 21:03:44,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339229999] [2021-07-13 21:03:44,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-13 21:03:44,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:44,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-13 21:03:44,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-13 21:03:44,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,413 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:44,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-07-13 21:03:44,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:44,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 21:03:44,445 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:44,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:44,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1476200344, now seen corresponding path program 1 times [2021-07-13 21:03:44,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:44,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729063054] [2021-07-13 21:03:44,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:44,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:44,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729063054] [2021-07-13 21:03:44,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729063054] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:44,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:44,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 21:03:44,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995905416] [2021-07-13 21:03:44,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 21:03:44,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:44,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 21:03:44,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-13 21:03:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,520 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:44,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-07-13 21:03:44,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:44,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:44,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 21:03:44,571 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:44,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1742533924, now seen corresponding path program 1 times [2021-07-13 21:03:44,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:44,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598377512] [2021-07-13 21:03:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:44,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:44,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598377512] [2021-07-13 21:03:44,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598377512] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:44,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166745079] [2021-07-13 21:03:44,648 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 [2021-07-13 21:03:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:44,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 21:03:44,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:44,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166745079] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:44,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:44,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-07-13 21:03:44,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590900114] [2021-07-13 21:03:44,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 21:03:44,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 21:03:44,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 21:03:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,862 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:44,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2021-07-13 21:03:44,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:44,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:44,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:45,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:45,173 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:45,174 INFO L82 PathProgramCache]: Analyzing trace with hash 490263283, now seen corresponding path program 1 times [2021-07-13 21:03:45,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:45,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608524692] [2021-07-13 21:03:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-13 21:03:45,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:45,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608524692] [2021-07-13 21:03:45,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608524692] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:45,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35124855] [2021-07-13 21:03:45,221 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 [2021-07-13 21:03:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:45,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-13 21:03:45,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:45,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35124855] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:45,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:45,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-07-13 21:03:45,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492879849] [2021-07-13 21:03:45,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 21:03:45,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:45,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 21:03:45,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-13 21:03:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,477 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:45,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 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) [2021-07-13 21:03:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 21:03:45,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-13 21:03:45,764 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:45,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:45,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1437284449, now seen corresponding path program 1 times [2021-07-13 21:03:45,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:45,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444704145] [2021-07-13 21:03:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:45,779 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:45,799 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:45,812 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 21:03:45,812 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 21:03:45,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 21:03:45,814 WARN L243 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-13 21:03:45,814 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-07-13 21:03:45,825 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,826 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,826 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,826 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,826 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,826 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,827 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,828 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,829 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,829 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,830 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,830 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,830 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,830 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,831 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,831 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,831 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,831 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:45,834 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-13 21:03:45,835 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-07-13 21:03:45,848 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:03:45,848 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:03:45,848 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:03:45,848 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:03:45,848 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:03:45,848 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:03:45,848 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:03:45,848 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:03:45,849 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 104 transitions, 238 flow Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:03:45,979 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8711 states, 8694 states have (on average 3.1459627329192545) internal successors, (27351), 8710 states have internal predecessors, (27351), 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) [2021-07-13 21:03:45,980 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:45,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:45,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1049443040, now seen corresponding path program 1 times [2021-07-13 21:03:45,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:45,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605526464] [2021-07-13 21:03:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:45,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:45,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605526464] [2021-07-13 21:03:45,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605526464] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:45,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:45,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 21:03:45,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906256292] [2021-07-13 21:03:45,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 21:03:45,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:45,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 21:03:45,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 21:03:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,989 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:45,989 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) [2021-07-13 21:03:45,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:45,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 21:03:45,990 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:45,990 INFO L82 PathProgramCache]: Analyzing trace with hash -482246094, now seen corresponding path program 1 times [2021-07-13 21:03:45,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:45,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455388541] [2021-07-13 21:03:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:46,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:46,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455388541] [2021-07-13 21:03:46,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455388541] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:46,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:46,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-13 21:03:46,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373142790] [2021-07-13 21:03:46,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-13 21:03:46,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:46,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-13 21:03:46,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-13 21:03:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,009 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:46,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-07-13 21:03:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 21:03:46,031 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1923608857, now seen corresponding path program 1 times [2021-07-13 21:03:46,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:46,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072053035] [2021-07-13 21:03:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:46,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:46,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072053035] [2021-07-13 21:03:46,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072053035] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:46,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:46,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 21:03:46,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15305626] [2021-07-13 21:03:46,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 21:03:46,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:46,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 21:03:46,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-13 21:03:46,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,062 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:46,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-07-13 21:03:46,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:46,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 21:03:46,103 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:46,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2014417523, now seen corresponding path program 1 times [2021-07-13 21:03:46,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:46,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251554112] [2021-07-13 21:03:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:46,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:46,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251554112] [2021-07-13 21:03:46,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251554112] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:46,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731496149] [2021-07-13 21:03:46,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 21:03:46,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:46,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731496149] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:46,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:46,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-07-13 21:03:46,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678367026] [2021-07-13 21:03:46,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 21:03:46,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:46,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 21:03:46,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 21:03:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,357 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:46,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2021-07-13 21:03:46,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:46,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:46,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-13 21:03:46,637 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:46,638 INFO L82 PathProgramCache]: Analyzing trace with hash -901812234, now seen corresponding path program 1 times [2021-07-13 21:03:46,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:46,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536003987] [2021-07-13 21:03:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-13 21:03:46,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:46,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536003987] [2021-07-13 21:03:46,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536003987] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:46,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174154291] [2021-07-13 21:03:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:46,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-13 21:03:46,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:46,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174154291] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:46,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:46,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-07-13 21:03:46,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587223579] [2021-07-13 21:03:46,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 21:03:46,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:46,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 21:03:46,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-13 21:03:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,925 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:46,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 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) [2021-07-13 21:03:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:47,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-13 21:03:47,305 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1104988938, now seen corresponding path program 1 times [2021-07-13 21:03:47,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:47,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708840268] [2021-07-13 21:03:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-07-13 21:03:47,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:47,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708840268] [2021-07-13 21:03:47,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708840268] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:47,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898796130] [2021-07-13 21:03:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:47,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-13 21:03:47,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-13 21:03:47,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898796130] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:47,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:47,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-07-13 21:03:47,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859298755] [2021-07-13 21:03:47,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 21:03:47,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:47,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 21:03:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-07-13 21:03:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:47,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 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) [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 21:03:47,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-13 21:03:47,961 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:47,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:47,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2017283657, now seen corresponding path program 1 times [2021-07-13 21:03:47,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:47,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009681235] [2021-07-13 21:03:47,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:47,996 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:48,012 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:48,028 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 21:03:48,028 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 21:03:48,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 21:03:48,030 WARN L243 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-13 21:03:48,031 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,038 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,039 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,040 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,041 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,042 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,043 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,043 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,044 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,044 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,044 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,044 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,045 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,045 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,045 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,045 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,046 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,046 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,046 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,046 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:48,050 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 21:03:48,050 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-07-13 21:03:48,066 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:03:48,066 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:03:48,066 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:03:48,066 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:03:48,066 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:03:48,067 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:03:48,067 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:03:48,067 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:03:48,068 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 110 transitions, 264 flow Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:03:49,070 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50191 states, 50158 states have (on average 3.838291000438614) internal successors, (192521), 50190 states have internal predecessors, (192521), 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) [2021-07-13 21:03:49,070 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:49,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:49,071 INFO L82 PathProgramCache]: Analyzing trace with hash 919968974, now seen corresponding path program 1 times [2021-07-13 21:03:49,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:49,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629667735] [2021-07-13 21:03:49,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:49,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:49,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629667735] [2021-07-13 21:03:49,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629667735] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:49,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:49,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 21:03:49,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277138552] [2021-07-13 21:03:49,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 21:03:49,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:49,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 21:03:49,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 21:03:49,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,092 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:49,093 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) [2021-07-13 21:03:49,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 21:03:49,094 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:49,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:49,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1458966624, now seen corresponding path program 1 times [2021-07-13 21:03:49,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:49,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017953529] [2021-07-13 21:03:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:49,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:49,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017953529] [2021-07-13 21:03:49,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017953529] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:49,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:49,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-13 21:03:49,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499260933] [2021-07-13 21:03:49,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-13 21:03:49,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:49,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-13 21:03:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-13 21:03:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,116 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:49,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-07-13 21:03:49,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:49,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 21:03:49,137 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:49,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:49,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1178612560, now seen corresponding path program 1 times [2021-07-13 21:03:49,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:49,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124770093] [2021-07-13 21:03:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:49,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:49,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124770093] [2021-07-13 21:03:49,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124770093] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:49,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:49,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 21:03:49,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008020965] [2021-07-13 21:03:49,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 21:03:49,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:49,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 21:03:49,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-13 21:03:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,170 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:49,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-07-13 21:03:49,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:49,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:49,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 21:03:49,222 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:49,222 INFO L82 PathProgramCache]: Analyzing trace with hash -984611958, now seen corresponding path program 1 times [2021-07-13 21:03:49,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:49,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118634966] [2021-07-13 21:03:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:49,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:49,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118634966] [2021-07-13 21:03:49,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118634966] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:49,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757756833] [2021-07-13 21:03:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 21:03:49,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:49,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757756833] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:49,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:49,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-07-13 21:03:49,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950829747] [2021-07-13 21:03:49,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 21:03:49,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:49,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 21:03:49,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 21:03:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,518 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:49,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2021-07-13 21:03:49,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:49,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:49,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:49,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-13 21:03:49,796 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1441939391, now seen corresponding path program 1 times [2021-07-13 21:03:49,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:49,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932092557] [2021-07-13 21:03:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-13 21:03:49,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:49,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932092557] [2021-07-13 21:03:49,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932092557] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:49,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293658107] [2021-07-13 21:03:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:49,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-13 21:03:49,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:50,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293658107] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:50,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:50,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-07-13 21:03:50,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927764535] [2021-07-13 21:03:50,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 21:03:50,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:50,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 21:03:50,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-13 21:03:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,114 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:50,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 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) [2021-07-13 21:03:50,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:50,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:50,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:50,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:50,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:50,449 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:50,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:50,449 INFO L82 PathProgramCache]: Analyzing trace with hash -324894072, now seen corresponding path program 1 times [2021-07-13 21:03:50,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:50,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935122972] [2021-07-13 21:03:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-07-13 21:03:50,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:50,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935122972] [2021-07-13 21:03:50,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935122972] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:50,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264131444] [2021-07-13 21:03:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:50,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-13 21:03:50,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:50,835 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-13 21:03:50,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264131444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:50,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:50,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-07-13 21:03:50,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967259793] [2021-07-13 21:03:50,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 21:03:50,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:50,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 21:03:50,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-07-13 21:03:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,837 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:50,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 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) [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:50,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:03:51,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-13 21:03:51,258 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:51,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:51,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2011369753, now seen corresponding path program 1 times [2021-07-13 21:03:51,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:51,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65362691] [2021-07-13 21:03:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:03:51,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:51,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65362691] [2021-07-13 21:03:51,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65362691] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:51,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187977860] [2021-07-13 21:03:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:51,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-13 21:03:51,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:03:51,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187977860] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:51,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:51,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-13 21:03:51,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912812712] [2021-07-13 21:03:51,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 21:03:51,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:51,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 21:03:51,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-07-13 21:03:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,693 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:51,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 9.333333333333334) internal successors, (196), 21 states have internal predecessors, (196), 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) [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:03:51,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:03:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 21:03:52,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:52,041 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:52,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1407006812, now seen corresponding path program 1 times [2021-07-13 21:03:52,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:52,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720289595] [2021-07-13 21:03:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:52,086 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:03:52,121 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:03:52,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 21:03:52,129 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 21:03:52,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 21:03:52,130 WARN L243 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-13 21:03:52,130 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,136 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,137 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,138 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,139 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,140 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,140 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,140 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,140 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,141 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,141 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,141 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,141 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,142 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,142 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,142 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,142 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,142 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,143 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,143 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,143 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:03:52,146 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-07-13 21:03:52,146 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:03:52,150 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:03:52,150 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:03:52,150 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:03:52,150 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:03:52,150 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:03:52,150 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:03:52,150 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:03:52,150 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:03:52,152 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 116 transitions, 292 flow [2021-07-13 21:03:58,776 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 291071 states, 291006 states have (on average 4.5242744135859745) internal successors, (1316591), 291070 states have internal predecessors, (1316591), 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) [2021-07-13 21:03:58,779 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:58,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:58,779 INFO L82 PathProgramCache]: Analyzing trace with hash 107461826, now seen corresponding path program 1 times [2021-07-13 21:03:58,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:58,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286648114] [2021-07-13 21:03:58,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:58,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:58,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286648114] [2021-07-13 21:03:58,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286648114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:58,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:58,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 21:03:58,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845814839] [2021-07-13 21:03:58,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-13 21:03:58,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:58,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-13 21:03:58,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-13 21:03:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,806 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:58,806 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) [2021-07-13 21:03:58,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 21:03:58,807 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:58,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:58,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1025101332, now seen corresponding path program 1 times [2021-07-13 21:03:58,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:58,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760164042] [2021-07-13 21:03:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 21:03:58,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:58,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760164042] [2021-07-13 21:03:58,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760164042] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:58,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:58,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-13 21:03:58,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727354673] [2021-07-13 21:03:58,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-13 21:03:58,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:58,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-13 21:03:58,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-13 21:03:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,826 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:58,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-07-13 21:03:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:58,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 21:03:58,848 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:58,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1483455501, now seen corresponding path program 1 times [2021-07-13 21:03:58,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:58,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167242519] [2021-07-13 21:03:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:58,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:58,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167242519] [2021-07-13 21:03:58,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167242519] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 21:03:58,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 21:03:58,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 21:03:58,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841249264] [2021-07-13 21:03:58,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 21:03:58,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:58,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 21:03:58,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-13 21:03:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,881 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:58,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-07-13 21:03:58,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:58,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:58,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:58,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 21:03:58,922 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:03:58,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:03:58,922 INFO L82 PathProgramCache]: Analyzing trace with hash 314032417, now seen corresponding path program 1 times [2021-07-13 21:03:58,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:03:58,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434457937] [2021-07-13 21:03:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:03:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:58,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:03:58,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434457937] [2021-07-13 21:03:58,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434457937] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:58,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951290613] [2021-07-13 21:03:58,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:03:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:03:59,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 21:03:59,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:03:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:03:59,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951290613] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:03:59,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:03:59,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-07-13 21:03:59,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380470105] [2021-07-13 21:03:59,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 21:03:59,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:03:59,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 21:03:59,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 21:03:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:59,800 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:03:59,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2021-07-13 21:03:59,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:59,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:59,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:59,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:59,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:03:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:03:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:03:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:00,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:00,097 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:04:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:04:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1068416434, now seen corresponding path program 1 times [2021-07-13 21:04:00,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:04:00,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669081277] [2021-07-13 21:04:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:04:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-13 21:04:00,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:04:00,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669081277] [2021-07-13 21:04:00,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669081277] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:00,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486214901] [2021-07-13 21:04:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:00,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-13 21:04:00,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:04:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 21:04:00,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486214901] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:00,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:04:00,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-07-13 21:04:00,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135122488] [2021-07-13 21:04:00,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 21:04:00,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:04:00,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 21:04:00,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-13 21:04:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:00,347 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:04:00,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 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) [2021-07-13 21:04:00,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:00,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:00,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:00,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:00,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:00,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:00,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-07-13 21:04:00,685 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:04:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:04:00,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1168082336, now seen corresponding path program 1 times [2021-07-13 21:04:00,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:04:00,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242956040] [2021-07-13 21:04:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:04:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-07-13 21:04:00,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:04:00,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242956040] [2021-07-13 21:04:00,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242956040] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:00,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541281577] [2021-07-13 21:04:00,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:00,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-13 21:04:00,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:04:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-13 21:04:01,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541281577] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:01,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:04:01,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-07-13 21:04:01,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330675734] [2021-07-13 21:04:01,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 21:04:01,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:04:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 21:04:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-07-13 21:04:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:01,015 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:04:01,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 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) [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:01,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:04:01,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-07-13 21:04:01,702 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:04:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:04:01,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1485747707, now seen corresponding path program 1 times [2021-07-13 21:04:01,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:04:01,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898381783] [2021-07-13 21:04:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:04:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:04:01,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:04:01,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898381783] [2021-07-13 21:04:01,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898381783] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:01,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117900939] [2021-07-13 21:04:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:01,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-13 21:04:01,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:04:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:04:02,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117900939] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:02,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:04:02,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-13 21:04:02,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423611763] [2021-07-13 21:04:02,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 21:04:02,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:04:02,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 21:04:02,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-07-13 21:04:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,094 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:04:02,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 9.333333333333334) internal successors, (196), 21 states have internal predecessors, (196), 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) [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:04:02,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:04:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 21:04:02,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:02,459 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:04:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:04:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash 225145905, now seen corresponding path program 1 times [2021-07-13 21:04:02,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:04:02,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382533716] [2021-07-13 21:04:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:04:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:04:02,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 21:04:02,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382533716] [2021-07-13 21:04:02,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382533716] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:02,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584570673] [2021-07-13 21:04:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 21:04:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 21:04:02,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-13 21:04:02,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 21:04:02,965 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-07-13 21:04:02,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584570673] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 21:04:02,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 21:04:02,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-07-13 21:04:02,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292814051] [2021-07-13 21:04:02,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 21:04:02,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 21:04:02,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 21:04:02,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-07-13 21:04:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,967 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 21:04:02,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 9.2) internal successors, (230), 25 states have internal predecessors, (230), 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) [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-13 21:04:02,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 21:04:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 21:04:03,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-07-13 21:04:03,320 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 21:04:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 21:04:03,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1679649464, now seen corresponding path program 1 times [2021-07-13 21:04:03,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 21:04:03,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142169804] [2021-07-13 21:04:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 21:04:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:04:03,337 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:04:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 21:04:03,355 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 21:04:03,369 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 21:04:03,369 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 21:04:03,369 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 21:04:03,371 WARN L243 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-13 21:04:03,371 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,379 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,380 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,381 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,382 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,383 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,384 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,384 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,384 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,384 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,385 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,385 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,385 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,385 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,386 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,386 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,386 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,386 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,387 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,387 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,387 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,387 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,387 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,388 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,388 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,388 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,389 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,389 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,389 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,389 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 21:04:03,393 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-07-13 21:04:03,394 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-13 21:04:03,399 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 21:04:03,399 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 21:04:03,399 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 21:04:03,399 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 21:04:03,399 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 21:04:03,399 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 21:04:03,399 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 21:04:03,399 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 21:04:03,400 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 122 transitions, 322 flow