/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:01:59,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:01:59,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:01:59,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:01:59,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:01:59,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:01:59,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:01:59,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:01:59,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:01:59,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:01:59,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:01:59,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:01:59,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:01:59,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:01:59,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:01:59,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:01:59,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:01:59,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:01:59,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:01:59,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:01:59,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:01:59,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:01:59,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:01:59,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:01:59,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:01:59,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:01:59,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:01:59,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:01:59,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:01:59,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:01:59,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:01:59,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:01:59,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:01:59,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:01:59,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:01:59,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:01:59,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:01:59,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:01:59,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:01:59,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:01:59,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:01:59,769 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:01:59,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:01:59,769 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:01:59,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:01:59,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:01:59,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:01:59,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:01:59,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:01:59,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:01:59,772 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:01:59,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:01:59,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:01:59,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:01:59,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:01:59,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:01:59,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:01:59,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:01:59,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:01:59,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:01:59,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:01:59,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:01:59,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:01:59,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:01:59,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:01:59,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:01:59,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:02:00,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:02:00,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:02:00,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:02:00,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:02:00,112 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:02:00,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-19 05:02:00,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88298d1b3/be93e8304f864d8b9ed03d7542aa4de2/FLAGcfc305f59 [2019-12-19 05:02:00,710 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:02:00,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-19 05:02:00,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88298d1b3/be93e8304f864d8b9ed03d7542aa4de2/FLAGcfc305f59 [2019-12-19 05:02:01,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88298d1b3/be93e8304f864d8b9ed03d7542aa4de2 [2019-12-19 05:02:01,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:02:01,067 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:02:01,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:02:01,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:02:01,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:02:01,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9b8af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01, skipping insertion in model container [2019-12-19 05:02:01,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:02:01,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:02:01,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:02:01,670 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:02:01,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:02:01,809 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:02:01,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01 WrapperNode [2019-12-19 05:02:01,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:02:01,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:02:01,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:02:01,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:02:01,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:02:01,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:02:01,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:02:01,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:02:01,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (1/1) ... [2019-12-19 05:02:01,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:02:01,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:02:01,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:02:01,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:02:01,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (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 [2019-12-19 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:02:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:02:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:02:01,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:02:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:02:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:02:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:02:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:02:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:02:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:02:01,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:02:01,965 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:02:02,333 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:02:02,333 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:02:02,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:02 BoogieIcfgContainer [2019-12-19 05:02:02,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:02:02,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:02:02,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:02:02,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:02:02,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:02:01" (1/3) ... [2019-12-19 05:02:02,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765c169b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:02:02, skipping insertion in model container [2019-12-19 05:02:02,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:01" (2/3) ... [2019-12-19 05:02:02,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765c169b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:02:02, skipping insertion in model container [2019-12-19 05:02:02,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:02" (3/3) ... [2019-12-19 05:02:02,348 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-19 05:02:02,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:02:02,357 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:02:02,363 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:02:02,364 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:02:02,394 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,394 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,394 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,395 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,395 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,395 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,396 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,396 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,396 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,397 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,398 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,398 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,398 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,398 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,399 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,399 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,403 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,403 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,404 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,404 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,410 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,411 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,411 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,412 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,414 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,415 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,415 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,415 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:02,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:02:02,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:02:02,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:02:02,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:02:02,455 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:02:02,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:02:02,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:02:02,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:02:02,456 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:02:02,466 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:02:02,549 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:02:02,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:02:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:02:02,580 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:02,581 INFO L411 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] [2019-12-19 05:02:02,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:02,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:02,588 INFO L82 PathProgramCache]: Analyzing trace with hash -771073264, now seen corresponding path program 1 times [2019-12-19 05:02:02,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:02,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274707099] [2019-12-19 05:02:02,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274707099] [2019-12-19 05:02:03,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:02:03,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690592335] [2019-12-19 05:02:03,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:02:03,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:02:03,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:02:03,033 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:02:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,184 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:02:03,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:02:03,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:02:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,211 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:02:03,211 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:02:03,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:02:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:02:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:02:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:02:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:02:03,332 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:02:03,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,333 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:02:03,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:02:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:02:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:02:03,338 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:03,338 INFO L411 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] [2019-12-19 05:02:03,339 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:03,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:03,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1342943045, now seen corresponding path program 1 times [2019-12-19 05:02:03,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:03,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636708110] [2019-12-19 05:02:03,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636708110] [2019-12-19 05:02:03,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:02:03,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672564628] [2019-12-19 05:02:03,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:02:03,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:02:03,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:02:03,557 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:02:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,636 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:02:03,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:02:03,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:02:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,642 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:02:03,643 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:02:03,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:02:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:02:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:02:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:02:03,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:02:03,675 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:02:03,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,676 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:02:03,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:02:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:02:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:02:03,678 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:03,678 INFO L411 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] [2019-12-19 05:02:03,678 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:03,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:03,679 INFO L82 PathProgramCache]: Analyzing trace with hash -837131723, now seen corresponding path program 1 times [2019-12-19 05:02:03,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:03,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477578515] [2019-12-19 05:02:03,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477578515] [2019-12-19 05:02:03,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:02:03,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356642622] [2019-12-19 05:02:03,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:02:03,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:02:03,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:02:03,797 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:02:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,897 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:02:03,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:03,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:02:03,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,901 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:02:03,901 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:02:03,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:02:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:02:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:02:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:02:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:02:03,915 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:02:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,915 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:02:03,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:02:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:02:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:03,917 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:03,917 INFO L411 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] [2019-12-19 05:02:03,917 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:03,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1670484431, now seen corresponding path program 1 times [2019-12-19 05:02:03,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:03,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30496020] [2019-12-19 05:02:03,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:04,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30496020] [2019-12-19 05:02:04,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:04,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:02:04,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652654578] [2019-12-19 05:02:04,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:02:04,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:04,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:02:04,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:02:04,067 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:02:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:04,200 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-19 05:02:04,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:04,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:02:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:04,204 INFO L225 Difference]: With dead ends: 556 [2019-12-19 05:02:04,204 INFO L226 Difference]: Without dead ends: 325 [2019-12-19 05:02:04,206 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 05:02:04,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-19 05:02:04,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-19 05:02:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 05:02:04,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 05:02:04,221 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 05:02:04,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:04,222 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 05:02:04,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:02:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 05:02:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:04,224 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:04,225 INFO L411 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] [2019-12-19 05:02:04,225 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:04,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:04,226 INFO L82 PathProgramCache]: Analyzing trace with hash 866384313, now seen corresponding path program 2 times [2019-12-19 05:02:04,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:04,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025632458] [2019-12-19 05:02:04,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:04,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025632458] [2019-12-19 05:02:04,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:04,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:02:04,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669275955] [2019-12-19 05:02:04,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:02:04,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:04,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:02:04,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:02:04,412 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 7 states. [2019-12-19 05:02:04,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:04,545 INFO L93 Difference]: Finished difference Result 496 states and 1326 transitions. [2019-12-19 05:02:04,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:04,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:02:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:04,548 INFO L225 Difference]: With dead ends: 496 [2019-12-19 05:02:04,548 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 05:02:04,548 INFO L631 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 [2019-12-19 05:02:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 05:02:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 05:02:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 05:02:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 05:02:04,557 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 05:02:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:04,558 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 05:02:04,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:02:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 05:02:04,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:04,559 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:04,559 INFO L411 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] [2019-12-19 05:02:04,560 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:04,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:04,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1548790957, now seen corresponding path program 3 times [2019-12-19 05:02:04,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:04,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354348595] [2019-12-19 05:02:04,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:04,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354348595] [2019-12-19 05:02:04,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:04,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:02:04,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329950892] [2019-12-19 05:02:04,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:02:04,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:04,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:02:04,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:02:04,734 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 05:02:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:04,818 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 05:02:04,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:04,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:02:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:04,819 INFO L225 Difference]: With dead ends: 199 [2019-12-19 05:02:04,820 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:02:04,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:02:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:02:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:02:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:02:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:02:04,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:02:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:04,821 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:02:04,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:02:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:02:04,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:02:04,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:02:04 BasicIcfg [2019-12-19 05:02:04,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:02:04,836 INFO L168 Benchmark]: Toolchain (without parser) took 3766.94 ms. Allocated memory was 141.6 MB in the beginning and 243.8 MB in the end (delta: 102.2 MB). Free memory was 105.3 MB in the beginning and 150.4 MB in the end (delta: -45.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,837 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.07 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 105.1 MB in the beginning and 161.5 MB in the end (delta: -56.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,847 INFO L168 Benchmark]: Boogie Preprocessor took 36.43 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,848 INFO L168 Benchmark]: RCFGBuilder took 438.10 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 137.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,849 INFO L168 Benchmark]: TraceAbstraction took 2495.08 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 136.9 MB in the beginning and 150.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:04,866 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.07 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 105.1 MB in the beginning and 161.5 MB in the end (delta: -56.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.43 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.10 ms. Allocated memory is still 204.5 MB. Free memory was 157.8 MB in the beginning and 137.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2495.08 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 136.9 MB in the beginning and 150.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 375 SDslu, 829 SDs, 0 SdLazy, 104 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...