/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:25:25,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:25:25,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:25:25,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 18:25:25,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 18:25:25,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 18:25:25,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 18:25:25,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 18:25:25,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 18:25:25,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 18:25:25,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 18:25:25,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 18:25:25,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:25:25,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:25:25,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:25:25,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:25:25,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:25:25,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:25:25,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:25:25,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:25:25,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:25:25,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:25:25,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:25:25,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:25:25,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-13 18:25:25,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:25:25,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:25:25,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:25:25,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:25:25,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:25:25,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:25:25,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:25:25,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:25:25,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:25:25,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:25:25,408 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:25:25,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:25:25,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:25:25,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:25:25,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:25:25,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:25:25,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:25:25,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:25:25,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:25:25,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:25:25,411 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:25:25,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:25:25,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:25:25,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:25:25,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:25:25,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:25:25,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:25:25,669 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:25:25,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2021-07-13 18:25:25,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c8fd1929/23f256eeb360443facffa35ebb84b8f1/FLAGf05c84509 [2021-07-13 18:25:26,064 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:25:26,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2021-07-13 18:25:26,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c8fd1929/23f256eeb360443facffa35ebb84b8f1/FLAGf05c84509 [2021-07-13 18:25:26,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c8fd1929/23f256eeb360443facffa35ebb84b8f1 [2021-07-13 18:25:26,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:25:26,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:25:26,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:25:26,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:25:26,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:25:26,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18200794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26, skipping insertion in model container [2021-07-13 18:25:26,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:25:26,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:25:26,299 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/stateful01-2.i[30826,30839] [2021-07-13 18:25:26,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:25:26,354 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:25:26,404 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/stateful01-2.i[30826,30839] [2021-07-13 18:25:26,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:25:26,442 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:25:26,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26 WrapperNode [2021-07-13 18:25:26,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:25:26,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:25:26,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:25:26,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:25:26,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:25:26,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:25:26,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:25:26,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:25:26,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (1/1) ... [2021-07-13 18:25:26,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:25:26,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:25:26,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:25:26,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:25:26,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (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 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 18:25:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 18:25:26,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:25:26,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:25:26,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:25:26,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:25:26,557 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 18:25:26,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:25:26,832 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-13 18:25:26,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:25:26 BoogieIcfgContainer [2021-07-13 18:25:26,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:25:26,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:25:26,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:25:26,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:25:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:25:26" (1/3) ... [2021-07-13 18:25:26,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3264a25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:25:26, skipping insertion in model container [2021-07-13 18:25:26,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:25:26" (2/3) ... [2021-07-13 18:25:26,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3264a25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:25:26, skipping insertion in model container [2021-07-13 18:25:26,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:25:26" (3/3) ... [2021-07-13 18:25:26,841 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-07-13 18:25:26,846 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:25:26,846 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:25:26,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:25:26,847 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:25:26,871 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,872 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,873 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,879 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,889 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:25:26,900 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 18:25:26,919 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-13 18:25:26,939 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:25:26,939 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:25:26,939 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:25:26,939 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:25:26,939 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:25:26,940 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:25:26,940 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:25:26,940 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:25:26,952 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 200 flow [2021-07-13 18:25:27,007 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 985 states, 984 states have (on average 2.4247967479674797) internal successors, (2386), 984 states have internal predecessors, (2386), 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 18:25:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 985 states, 984 states have (on average 2.4247967479674797) internal successors, (2386), 984 states have internal predecessors, (2386), 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 18:25:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:25:27,041 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:25:27,041 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:25:27,042 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:25:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:25:27,045 INFO L82 PathProgramCache]: Analyzing trace with hash -852071639, now seen corresponding path program 1 times [2021-07-13 18:25:27,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:25:27,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583232281] [2021-07-13 18:25:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:25:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:25:27,277 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 18:25:27,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:25:27,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583232281] [2021-07-13 18:25:27,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583232281] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:25:27,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:25:27,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-13 18:25:27,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925656664] [2021-07-13 18:25:27,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 18:25:27,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:25:27,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 18:25:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 18:25:27,298 INFO L87 Difference]: Start difference. First operand has 985 states, 984 states have (on average 2.4247967479674797) internal successors, (2386), 984 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 18:25:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:25:27,376 INFO L93 Difference]: Finished difference Result 745 states and 1598 transitions. [2021-07-13 18:25:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 18:25:27,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-07-13 18:25:27,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:25:27,389 INFO L225 Difference]: With dead ends: 745 [2021-07-13 18:25:27,389 INFO L226 Difference]: Without dead ends: 745 [2021-07-13 18:25:27,390 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 18:25:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-07-13 18:25:27,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2021-07-13 18:25:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 744 states have (on average 2.1478494623655915) internal successors, (1598), 744 states have internal predecessors, (1598), 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 18:25:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1598 transitions. [2021-07-13 18:25:27,457 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1598 transitions. Word has length 75 [2021-07-13 18:25:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:25:27,458 INFO L482 AbstractCegarLoop]: Abstraction has 745 states and 1598 transitions. [2021-07-13 18:25:27,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 18:25:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1598 transitions. [2021-07-13 18:25:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:25:27,468 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:25:27,468 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:25:27,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:25:27,469 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:25:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:25:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash 549125929, now seen corresponding path program 2 times [2021-07-13 18:25:27,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:25:27,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866634052] [2021-07-13 18:25:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:25:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:25:27,606 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 18:25:27,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:25:27,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866634052] [2021-07-13 18:25:27,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866634052] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:25:27,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:25:27,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:25:27,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100489755] [2021-07-13 18:25:27,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:25:27,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:25:27,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:25:27,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:25:27,610 INFO L87 Difference]: Start difference. First operand 745 states and 1598 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 18:25:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:25:27,663 INFO L93 Difference]: Finished difference Result 987 states and 2123 transitions. [2021-07-13 18:25:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:25:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-07-13 18:25:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:25:27,666 INFO L225 Difference]: With dead ends: 987 [2021-07-13 18:25:27,666 INFO L226 Difference]: Without dead ends: 486 [2021-07-13 18:25:27,667 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:25:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-07-13 18:25:27,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2021-07-13 18:25:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 2.111340206185567) internal successors, (1024), 485 states have internal predecessors, (1024), 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 18:25:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1024 transitions. [2021-07-13 18:25:27,706 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1024 transitions. Word has length 75 [2021-07-13 18:25:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:25:27,706 INFO L482 AbstractCegarLoop]: Abstraction has 486 states and 1024 transitions. [2021-07-13 18:25:27,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 18:25:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1024 transitions. [2021-07-13 18:25:27,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-13 18:25:27,707 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:25:27,708 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:25:27,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:25:27,708 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:25:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:25:27,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1050134683, now seen corresponding path program 3 times [2021-07-13 18:25:27,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:25:27,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565829831] [2021-07-13 18:25:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:25:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:25:27,832 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 18:25:27,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:25:27,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565829831] [2021-07-13 18:25:27,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565829831] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:25:27,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:25:27,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:25:27,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85386408] [2021-07-13 18:25:27,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:25:27,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:25:27,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:25:27,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:25:27,834 INFO L87 Difference]: Start difference. First operand 486 states and 1024 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 18:25:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:25:27,885 INFO L93 Difference]: Finished difference Result 484 states and 1022 transitions. [2021-07-13 18:25:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:25:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-07-13 18:25:27,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:25:27,889 INFO L225 Difference]: With dead ends: 484 [2021-07-13 18:25:27,889 INFO L226 Difference]: Without dead ends: 0 [2021-07-13 18:25:27,889 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:25:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-13 18:25:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-13 18:25:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:25:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-13 18:25:27,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-07-13 18:25:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:25:27,890 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-13 18:25:27,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 18:25:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-13 18:25:27,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-13 18:25:27,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:25:27,892 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:25:27,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:25:27 BasicIcfg [2021-07-13 18:25:27,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:25:27,894 INFO L168 Benchmark]: Toolchain (without parser) took 1799.79 ms. Allocated memory is still 211.8 MB. Free memory was 174.7 MB in the beginning and 160.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. [2021-07-13 18:25:27,894 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 211.8 MB. Free memory is still 192.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:25:27,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.39 ms. Allocated memory is still 211.8 MB. Free memory was 174.5 MB in the beginning and 187.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-07-13 18:25:27,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 211.8 MB. Free memory was 187.0 MB in the beginning and 185.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:25:27,895 INFO L168 Benchmark]: Boogie Preprocessor took 22.46 ms. Allocated memory is still 211.8 MB. Free memory was 185.3 MB in the beginning and 183.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:25:27,896 INFO L168 Benchmark]: RCFGBuilder took 333.02 ms. Allocated memory is still 211.8 MB. Free memory was 183.8 MB in the beginning and 158.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-13 18:25:27,896 INFO L168 Benchmark]: TraceAbstraction took 1056.99 ms. Allocated memory is still 211.8 MB. Free memory was 157.6 MB in the beginning and 160.4 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:25:27,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 211.8 MB. Free memory is still 192.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 342.39 ms. Allocated memory is still 211.8 MB. Free memory was 174.5 MB in the beginning and 187.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 211.8 MB. Free memory was 187.0 MB in the beginning and 185.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.46 ms. Allocated memory is still 211.8 MB. Free memory was 185.3 MB in the beginning and 183.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 333.02 ms. Allocated memory is still 211.8 MB. Free memory was 183.8 MB in the beginning and 158.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1056.99 ms. Allocated memory is still 211.8 MB. Free memory was 157.6 MB in the beginning and 160.4 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 727]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 953.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 44.9ms, AutomataDifference: 221.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 67.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 308 SDtfs, 108 SDslu, 739 SDs, 0 SdLazy, 62 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 86.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=985occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 98.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.2ms SsaConstructionTime, 110.2ms SatisfiabilityAnalysisTime, 276.0ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...