/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:16:00,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:16:00,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:16:00,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:16:00,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:16:00,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:16:00,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:16:00,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:16:00,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:16:00,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:16:00,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:16:00,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:16:00,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:16:00,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:16:00,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:16:00,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:16:00,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:16:00,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:16:00,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:16:00,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:16:00,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:16:00,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:16:00,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:16:00,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:16:00,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:16:00,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:16:00,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:16:00,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:16:00,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:16:00,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:16:00,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:16:00,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:16:00,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:16:00,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:16:00,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:16:01,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:16:01,001 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-New_States.epf [2020-11-12 12:16:01,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:16:01,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:16:01,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:16:01,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:16:01,066 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:16:01,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:16:01,066 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:16:01,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:16:01,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:16:01,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:16:01,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:16:01,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:16:01,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:16:01,069 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:16:01,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:16:01,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:16:01,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:16:01,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:16:01,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:16:01,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:16:01,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:16:01,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:16:01,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:16:01,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:16:01,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:16:01,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:16:01,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:16:01,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:16:01,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:16:01,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:16:01,073 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:16:01,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:16:01,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:16:01,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:16:01,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:16:01,507 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:16:01,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-11-12 12:16:01,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9911eb4e7/1ddaeab614164f9fa1538f44d73b6646/FLAG344ad6d28 [2020-11-12 12:16:02,299 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:16:02,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-11-12 12:16:02,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9911eb4e7/1ddaeab614164f9fa1538f44d73b6646/FLAG344ad6d28 [2020-11-12 12:16:02,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9911eb4e7/1ddaeab614164f9fa1538f44d73b6646 [2020-11-12 12:16:02,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:16:02,586 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:16:02,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:02,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:16:02,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:16:02,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:02" (1/1) ... [2020-11-12 12:16:02,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29648c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:02, skipping insertion in model container [2020-11-12 12:16:02,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:02" (1/1) ... [2020-11-12 12:16:02,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:16:02,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:16:03,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:03,049 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:16:03,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:03,239 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:16:03,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03 WrapperNode [2020-11-12 12:16:03,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:03,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:03,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:16:03,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:16:03,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:03,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:16:03,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:16:03,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:16:03,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... [2020-11-12 12:16:03,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:16:03,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:16:03,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:16:03,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:16:03,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:16:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:16:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:16:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:16:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:16:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:16:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:16:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:16:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:16:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:16:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:16:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:16:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:16:03,466 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:16:04,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:16:04,005 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:16:04,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:04 BoogieIcfgContainer [2020-11-12 12:16:04,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:16:04,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:16:04,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:16:04,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:16:04,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:16:02" (1/3) ... [2020-11-12 12:16:04,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1f986c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:04, skipping insertion in model container [2020-11-12 12:16:04,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:03" (2/3) ... [2020-11-12 12:16:04,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1f986c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:04, skipping insertion in model container [2020-11-12 12:16:04,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:04" (3/3) ... [2020-11-12 12:16:04,016 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2020-11-12 12:16:04,031 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:16:04,031 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:16:04,035 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:16:04,036 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:16:04,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,066 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,066 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,071 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,071 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:04,080 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:16:04,094 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:16:04,118 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:16:04,118 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:16:04,118 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:16:04,119 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:16:04,119 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:16:04,119 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:16:04,119 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:16:04,119 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:16:04,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 12:16:04,237 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-12 12:16:04,504 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 263ms [2020-11-12 12:16:04,508 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) [2020-11-12 12:16:04,516 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4081 states, 3682 states have (on average 1.1735469853340577) internal successors, (4321), 4080 states have internal predecessors, (4321), 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) [2020-11-12 12:16:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 4081 states, 3682 states have (on average 1.1735469853340577) internal successors, (4321), 4080 states have internal predecessors, (4321), 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) [2020-11-12 12:16:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 12:16:04,537 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:04,538 INFO L494 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] [2020-11-12 12:16:04,538 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:04,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2020-11-12 12:16:04,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:04,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383691176] [2020-11-12 12:16:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:04,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:04,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383691176] [2020-11-12 12:16:04,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:04,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:16:04,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76876530] [2020-11-12 12:16:04,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:16:04,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:04,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:16:04,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:16:04,973 INFO L87 Difference]: Start difference. First operand has 4081 states, 3682 states have (on average 1.1735469853340577) internal successors, (4321), 4080 states have internal predecessors, (4321), 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 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-12 12:16:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:05,159 INFO L93 Difference]: Finished difference Result 1688 states and 1835 transitions. [2020-11-12 12:16:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:16:05,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2020-11-12 12:16:05,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:05,179 INFO L225 Difference]: With dead ends: 1688 [2020-11-12 12:16:05,179 INFO L226 Difference]: Without dead ends: 599 [2020-11-12 12:16:05,181 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:16:05,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-11-12 12:16:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2020-11-12 12:16:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 564 states have (on average 1.2127659574468086) internal successors, (684), 598 states have internal predecessors, (684), 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) [2020-11-12 12:16:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 684 transitions. [2020-11-12 12:16:05,266 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 684 transitions. Word has length 37 [2020-11-12 12:16:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:05,267 INFO L481 AbstractCegarLoop]: Abstraction has 599 states and 684 transitions. [2020-11-12 12:16:05,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2020-11-12 12:16:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 684 transitions. [2020-11-12 12:16:05,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-12 12:16:05,273 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:05,274 INFO L494 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] [2020-11-12 12:16:05,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:16:05,274 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:05,275 INFO L82 PathProgramCache]: Analyzing trace with hash -315660943, now seen corresponding path program 1 times [2020-11-12 12:16:05,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:05,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725925596] [2020-11-12 12:16:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:05,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:05,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725925596] [2020-11-12 12:16:05,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:05,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:16:05,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960347939] [2020-11-12 12:16:05,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:16:05,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:05,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:16:05,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:16:05,536 INFO L87 Difference]: Start difference. First operand 599 states and 684 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-12 12:16:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:05,695 INFO L93 Difference]: Finished difference Result 639 states and 699 transitions. [2020-11-12 12:16:05,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:16:05,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2020-11-12 12:16:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:05,698 INFO L225 Difference]: With dead ends: 639 [2020-11-12 12:16:05,699 INFO L226 Difference]: Without dead ends: 442 [2020-11-12 12:16:05,700 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:16:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-11-12 12:16:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-11-12 12:16:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 417 states have (on average 1.1726618705035972) internal successors, (489), 441 states have internal predecessors, (489), 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) [2020-11-12 12:16:05,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 489 transitions. [2020-11-12 12:16:05,742 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 489 transitions. Word has length 39 [2020-11-12 12:16:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:05,743 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 489 transitions. [2020-11-12 12:16:05,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2020-11-12 12:16:05,743 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 489 transitions. [2020-11-12 12:16:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:16:05,748 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:05,748 INFO L494 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] [2020-11-12 12:16:05,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:16:05,749 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:05,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1732515504, now seen corresponding path program 1 times [2020-11-12 12:16:05,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:05,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374870514] [2020-11-12 12:16:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:05,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374870514] [2020-11-12 12:16:05,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:05,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:05,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230187956] [2020-11-12 12:16:05,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:05,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:05,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:05,970 INFO L87 Difference]: Start difference. First operand 442 states and 489 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2020-11-12 12:16:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:06,159 INFO L93 Difference]: Finished difference Result 637 states and 704 transitions. [2020-11-12 12:16:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) Word has length 41 [2020-11-12 12:16:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:06,162 INFO L225 Difference]: With dead ends: 637 [2020-11-12 12:16:06,162 INFO L226 Difference]: Without dead ends: 328 [2020-11-12 12:16:06,163 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:06,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-11-12 12:16:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2020-11-12 12:16:06,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 308 states have (on average 1.155844155844156) internal successors, (356), 327 states have internal predecessors, (356), 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) [2020-11-12 12:16:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 356 transitions. [2020-11-12 12:16:06,173 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 356 transitions. Word has length 41 [2020-11-12 12:16:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:06,173 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 356 transitions. [2020-11-12 12:16:06,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2020-11-12 12:16:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 356 transitions. [2020-11-12 12:16:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:16:06,174 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:06,175 INFO L494 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] [2020-11-12 12:16:06,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:16:06,175 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:06,176 INFO L82 PathProgramCache]: Analyzing trace with hash 457144820, now seen corresponding path program 1 times [2020-11-12 12:16:06,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:06,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978070783] [2020-11-12 12:16:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:06,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978070783] [2020-11-12 12:16:06,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:06,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:06,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495127417] [2020-11-12 12:16:06,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:06,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:06,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:06,317 INFO L87 Difference]: Start difference. First operand 328 states and 356 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2020-11-12 12:16:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:06,461 INFO L93 Difference]: Finished difference Result 248 states and 276 transitions. [2020-11-12 12:16:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2020-11-12 12:16:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:06,462 INFO L225 Difference]: With dead ends: 248 [2020-11-12 12:16:06,462 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:16:06,462 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:16:06,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:16:06,463 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) [2020-11-12 12:16:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:16:06,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-12 12:16:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:06,464 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:16:06,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2020-11-12 12:16:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:16:06,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:16:06,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:16:06,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:16:06 BasicIcfg [2020-11-12 12:16:06,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:16:06,472 INFO L168 Benchmark]: Toolchain (without parser) took 3891.83 ms. Allocated memory is still 306.2 MB. Free memory was 279.8 MB in the beginning and 226.7 MB in the end (delta: 53.0 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:06,473 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 306.2 MB. Free memory was 277.3 MB in the beginning and 277.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:16:06,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.78 ms. Allocated memory is still 306.2 MB. Free memory was 279.0 MB in the beginning and 281.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:06,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.41 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 278.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:16:06,475 INFO L168 Benchmark]: Boogie Preprocessor took 56.62 ms. Allocated memory is still 306.2 MB. Free memory was 278.9 MB in the beginning and 276.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:06,476 INFO L168 Benchmark]: RCFGBuilder took 629.39 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 256.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:06,477 INFO L168 Benchmark]: TraceAbstraction took 2460.31 ms. Allocated memory is still 306.2 MB. Free memory was 255.8 MB in the beginning and 226.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:06,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 306.2 MB. Free memory was 277.3 MB in the beginning and 277.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 651.78 ms. Allocated memory is still 306.2 MB. Free memory was 279.0 MB in the beginning and 281.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.41 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 278.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.62 ms. Allocated memory is still 306.2 MB. Free memory was 278.9 MB in the beginning and 276.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 629.39 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 256.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2460.31 ms. Allocated memory is still 306.2 MB. Free memory was 255.8 MB in the beginning and 226.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 208 SDtfs, 231 SDslu, 791 SDs, 0 SdLazy, 82 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4081occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17569 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...