/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/safe036_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:29:13,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:29:13,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:29:13,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:29:13,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:29:13,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:29:13,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:29:13,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:29:13,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:29:13,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:29:13,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:29:13,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:29:13,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:29:13,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:29:13,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:29:13,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:29:13,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:29:13,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:29:13,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:29:13,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:29:13,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:29:13,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:29:13,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:29:13,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:29:13,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:29:13,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:29:13,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:29:13,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:29:13,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:29:13,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:29:13,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:29:13,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:29:13,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:29:13,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:29:13,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:29:13,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:29:13,389 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 12:29:13,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:29:13,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:29:13,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:29:13,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:29:13,419 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:29:13,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:29:13,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:29:13,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:29:13,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:29:13,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:29:13,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:29:13,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:29:13,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:29:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:29:13,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:29:13,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:29:13,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:29:13,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:29:13,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:29:13,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:29:13,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:29:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:29:13,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:29:13,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:29:13,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:29:13,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:29:13,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:29:13,425 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:29:13,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:29:13,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:29:13,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:29:13,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:29:13,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:29:13,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:29:13,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:29:13,840 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:29:13,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-12 12:29:13,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc59d51c/aa6d6fabe93448d79a2e0b5eedf3c2b5/FLAG3bd1279e0 [2020-11-12 12:29:14,678 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:29:14,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-12 12:29:14,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc59d51c/aa6d6fabe93448d79a2e0b5eedf3c2b5/FLAG3bd1279e0 [2020-11-12 12:29:14,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc59d51c/aa6d6fabe93448d79a2e0b5eedf3c2b5 [2020-11-12 12:29:14,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:29:14,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:29:15,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:15,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:29:15,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:29:15,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:14" (1/1) ... [2020-11-12 12:29:15,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701b0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15, skipping insertion in model container [2020-11-12 12:29:15,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:14" (1/1) ... [2020-11-12 12:29:15,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:29:15,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:29:15,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:15,489 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:29:15,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:15,690 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:29:15,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15 WrapperNode [2020-11-12 12:29:15,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:15,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:15,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:29:15,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:29:15,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:15,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:29:15,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:29:15,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:29:15,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (1/1) ... [2020-11-12 12:29:15,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:29:15,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:29:15,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:29:15,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:29:15,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (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 12:29:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:29:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:29:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:29:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:29:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:29:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:29:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:29:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:29:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:29:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:29:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:29:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:29:15,855 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 12:29:16,353 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:29:16,353 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:29:16,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:16 BoogieIcfgContainer [2020-11-12 12:29:16,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:29:16,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:29:16,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:29:16,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:29:16,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:29:14" (1/3) ... [2020-11-12 12:29:16,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49926a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:16, skipping insertion in model container [2020-11-12 12:29:16,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:15" (2/3) ... [2020-11-12 12:29:16,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49926a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:16, skipping insertion in model container [2020-11-12 12:29:16,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:16" (3/3) ... [2020-11-12 12:29:16,369 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2020-11-12 12:29:16,389 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:29:16,389 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:29:16,394 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:29:16,395 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:29:16,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,451 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,460 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,460 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:16,475 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:29:16,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:29:16,516 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:29:16,517 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:29:16,517 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:29:16,517 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:29:16,517 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:29:16,517 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:29:16,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:29:16,518 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:29:16,531 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 12:29:16,616 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 12:29:16,856 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 236ms [2020-11-12 12:29:16,861 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 12:29:16,871 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4057 states, 3658 states have (on average 1.1670311645708038) internal successors, (4269), 4056 states have internal predecessors, (4269), 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 12:29:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 4057 states, 3658 states have (on average 1.1670311645708038) internal successors, (4269), 4056 states have internal predecessors, (4269), 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 12:29:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 12:29:16,893 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:16,894 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 12:29:16,894 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1361290816, now seen corresponding path program 1 times [2020-11-12 12:29:16,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:16,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22796510] [2020-11-12 12:29:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:17,324 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 12:29:17,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22796510] [2020-11-12 12:29:17,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:17,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:29:17,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969455873] [2020-11-12 12:29:17,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:29:17,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:17,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:29:17,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:29:17,360 INFO L87 Difference]: Start difference. First operand has 4057 states, 3658 states have (on average 1.1670311645708038) internal successors, (4269), 4056 states have internal predecessors, (4269), 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 12:29:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:17,547 INFO L93 Difference]: Finished difference Result 1160 states and 1226 transitions. [2020-11-12 12:29:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:17,550 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 12:29:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:17,568 INFO L225 Difference]: With dead ends: 1160 [2020-11-12 12:29:17,568 INFO L226 Difference]: Without dead ends: 569 [2020-11-12 12:29:17,570 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 12:29:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-11-12 12:29:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2020-11-12 12:29:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 536 states have (on average 1.162313432835821) internal successors, (623), 568 states have internal predecessors, (623), 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 12:29:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 623 transitions. [2020-11-12 12:29:17,665 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 623 transitions. Word has length 37 [2020-11-12 12:29:17,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:17,666 INFO L481 AbstractCegarLoop]: Abstraction has 569 states and 623 transitions. [2020-11-12 12:29:17,666 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 12:29:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 623 transitions. [2020-11-12 12:29:17,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:29:17,668 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:17,669 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 12:29:17,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:29:17,669 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:17,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:17,670 INFO L82 PathProgramCache]: Analyzing trace with hash -887889922, now seen corresponding path program 1 times [2020-11-12 12:29:17,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:17,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469151332] [2020-11-12 12:29:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:17,833 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 12:29:17,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469151332] [2020-11-12 12:29:17,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:17,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:17,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154156428] [2020-11-12 12:29:17,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:17,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:17,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:17,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:17,838 INFO L87 Difference]: Start difference. First operand 569 states and 623 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 12:29:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:17,990 INFO L93 Difference]: Finished difference Result 367 states and 388 transitions. [2020-11-12 12:29:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:17,991 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 12:29:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:17,993 INFO L225 Difference]: With dead ends: 367 [2020-11-12 12:29:17,993 INFO L226 Difference]: Without dead ends: 198 [2020-11-12 12:29:17,994 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:29:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-12 12:29:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-11-12 12:29:18,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.0740740740740742) internal successors, (203), 197 states have internal predecessors, (203), 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 12:29:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 203 transitions. [2020-11-12 12:29:18,004 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 203 transitions. Word has length 41 [2020-11-12 12:29:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:18,004 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 203 transitions. [2020-11-12 12:29:18,005 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 12:29:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 203 transitions. [2020-11-12 12:29:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:29:18,006 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:18,006 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, 1, 1, 1] [2020-11-12 12:29:18,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:29:18,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:18,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:18,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1160345054, now seen corresponding path program 1 times [2020-11-12 12:29:18,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:18,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059384518] [2020-11-12 12:29:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:18,149 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 12:29:18,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059384518] [2020-11-12 12:29:18,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:18,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:18,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479430655] [2020-11-12 12:29:18,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:18,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:18,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:18,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:18,161 INFO L87 Difference]: Start difference. First operand 198 states and 203 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 12:29:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:18,304 INFO L93 Difference]: Finished difference Result 292 states and 294 transitions. [2020-11-12 12:29:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:18,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2020-11-12 12:29:18,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:18,306 INFO L225 Difference]: With dead ends: 292 [2020-11-12 12:29:18,306 INFO L226 Difference]: Without dead ends: 176 [2020-11-12 12:29:18,307 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-12 12:29:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2020-11-12 12:29:18,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 167 states have (on average 1.0479041916167664) internal successors, (175), 175 states have internal predecessors, (175), 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 12:29:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 175 transitions. [2020-11-12 12:29:18,313 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 175 transitions. Word has length 45 [2020-11-12 12:29:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:18,314 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 175 transitions. [2020-11-12 12:29:18,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 12:29:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 175 transitions. [2020-11-12 12:29:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:29:18,315 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:18,315 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, 1, 1, 1] [2020-11-12 12:29:18,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:29:18,316 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:18,317 INFO L82 PathProgramCache]: Analyzing trace with hash 177426048, now seen corresponding path program 2 times [2020-11-12 12:29:18,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:18,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144116495] [2020-11-12 12:29:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:18,439 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 12:29:18,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144116495] [2020-11-12 12:29:18,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:18,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:18,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043798129] [2020-11-12 12:29:18,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:18,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:18,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:18,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:18,442 INFO L87 Difference]: Start difference. First operand 176 states and 175 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 12:29:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:18,525 INFO L93 Difference]: Finished difference Result 140 states and 139 transitions. [2020-11-12 12:29:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:18,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2020-11-12 12:29:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:18,526 INFO L225 Difference]: With dead ends: 140 [2020-11-12 12:29:18,526 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:29:18,527 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:29:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:29:18,528 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 12:29:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:29:18,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-12 12:29:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:18,528 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:29:18,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 12:29:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:29:18,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:29:18,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:29:18,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:18 BasicIcfg [2020-11-12 12:29:18,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:29:18,537 INFO L168 Benchmark]: Toolchain (without parser) took 3547.05 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 235.2 MB in the end (delta: 40.8 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,538 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:29:18,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.22 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,540 INFO L168 Benchmark]: Boogie Preprocessor took 28.29 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,541 INFO L168 Benchmark]: RCFGBuilder took 586.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,542 INFO L168 Benchmark]: TraceAbstraction took 2174.40 ms. Allocated memory is still 302.0 MB. Free memory was 252.2 MB in the beginning and 235.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:18,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 689.22 ms. Allocated memory is still 302.0 MB. Free memory was 275.3 MB in the beginning and 276.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.29 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 586.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2174.40 ms. Allocated memory is still 302.0 MB. Free memory was 252.2 MB in the beginning and 235.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 188 SDtfs, 205 SDslu, 739 SDs, 0 SdLazy, 92 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4057occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 17080 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...