/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 00:04:48,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 00:04:48,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 00:04:48,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 00:04:48,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 00:04:48,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 00:04:48,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 00:04:48,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 00:04:48,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 00:04:48,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 00:04:48,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 00:04:48,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 00:04:48,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 00:04:48,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 00:04:48,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 00:04:48,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 00:04:48,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 00:04:48,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 00:04:48,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 00:04:48,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 00:04:48,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 00:04:48,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 00:04:48,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 00:04:48,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 00:04:48,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 00:04:48,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 00:04:48,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 00:04:48,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 00:04:48,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 00:04:48,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 00:04:48,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 00:04:48,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 00:04:48,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 00:04:48,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 00:04:48,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 00:04:48,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 00:04:48,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-15 00:04:48,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 00:04:48,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 00:04:48,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 00:04:48,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 00:04:48,438 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 00:04:48,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 00:04:48,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 00:04:48,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 00:04:48,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 00:04:48,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 00:04:48,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 00:04:48,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 00:04:48,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 00:04:48,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 00:04:48,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 00:04:48,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 00:04:48,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 00:04:48,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 00:04:48,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 00:04:48,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 00:04:48,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 00:04:48,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:04:48,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 00:04:48,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-15 00:04:48,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 00:04:48,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 00:04:48,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 00:04:48,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 00:04:48,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-15 00:04:48,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-15 00:04:48,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 00:04:48,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 00:04:48,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 00:04:48,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 00:04:48,954 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 00:04:48,955 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-09-15 00:04:49,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/456a380ee/956fcae70ab44421b087eed08a3206f6/FLAG0551279d2 [2020-09-15 00:04:49,701 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 00:04:49,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-09-15 00:04:49,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/456a380ee/956fcae70ab44421b087eed08a3206f6/FLAG0551279d2 [2020-09-15 00:04:49,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/456a380ee/956fcae70ab44421b087eed08a3206f6 [2020-09-15 00:04:49,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 00:04:49,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 00:04:49,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 00:04:49,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 00:04:50,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 00:04:50,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:04:49" (1/1) ... [2020-09-15 00:04:50,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780be65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50, skipping insertion in model container [2020-09-15 00:04:50,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:04:49" (1/1) ... [2020-09-15 00:04:50,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 00:04:50,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 00:04:50,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:04:50,644 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 00:04:50,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:04:50,781 INFO L208 MainTranslator]: Completed translation [2020-09-15 00:04:50,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50 WrapperNode [2020-09-15 00:04:50,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 00:04:50,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 00:04:50,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 00:04:50,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 00:04:50,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 00:04:50,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 00:04:50,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 00:04:50,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 00:04:50,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... [2020-09-15 00:04:50,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 00:04:50,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 00:04:50,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 00:04:50,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 00:04:50,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 00:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 00:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 00:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 00:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 00:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 00:04:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 00:04:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 00:04:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 00:04:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 00:04:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 00:04:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 00:04:50,984 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 00:04:51,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 00:04:51,353 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 00:04:51,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:04:51 BoogieIcfgContainer [2020-09-15 00:04:51,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 00:04:51,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 00:04:51,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 00:04:51,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 00:04:51,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:04:49" (1/3) ... [2020-09-15 00:04:51,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe83ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:04:51, skipping insertion in model container [2020-09-15 00:04:51,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:04:50" (2/3) ... [2020-09-15 00:04:51,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe83ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:04:51, skipping insertion in model container [2020-09-15 00:04:51,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:04:51" (3/3) ... [2020-09-15 00:04:51,369 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2020-09-15 00:04:51,379 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 00:04:51,379 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-15 00:04:51,388 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 00:04:51,389 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 00:04:51,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,417 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,418 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,426 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,439 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,439 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:04:51,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-15 00:04:51,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:04:51,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:04:51,492 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:04:51,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:04:51,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:04:51,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:04:51,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:04:51,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:04:51,510 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-09-15 00:04:51,512 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-15 00:04:51,558 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-15 00:04:51,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:04:51,565 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-15 00:04:51,567 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-15 00:04:51,594 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-15 00:04:51,594 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:04:51,595 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-15 00:04:51,600 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-15 00:04:51,602 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:04:53,036 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1209 [2020-09-15 00:04:53,036 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-09-15 00:04:53,041 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-15 00:04:53,056 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-15 00:04:53,059 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-15 00:04:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-15 00:04:53,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:04:53,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-15 00:04:53,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:04:53,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:04:53,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-09-15 00:04:53,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:04:53,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543515141] [2020-09-15 00:04:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:04:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:04:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:04:53,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543515141] [2020-09-15 00:04:53,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:04:53,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 00:04:53,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765443272] [2020-09-15 00:04:53,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:04:53,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:04:53,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:04:53,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:04:53,372 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-15 00:04:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:04:53,412 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-09-15 00:04:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:04:53,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-15 00:04:53,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:04:53,429 INFO L225 Difference]: With dead ends: 72 [2020-09-15 00:04:53,430 INFO L226 Difference]: Without dead ends: 56 [2020-09-15 00:04:53,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:04:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-15 00:04:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-15 00:04:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-15 00:04:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-09-15 00:04:53,484 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-09-15 00:04:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:04:53,484 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-09-15 00:04:53,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:04:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-09-15 00:04:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-15 00:04:53,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:04:53,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:04:53,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 00:04:53,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:04:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:04:53,487 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-09-15 00:04:53,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:04:53,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725378239] [2020-09-15 00:04:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:04:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:04:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:04:53,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725378239] [2020-09-15 00:04:53,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:04:53,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:04:53,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238827901] [2020-09-15 00:04:53,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:04:53,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:04:53,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:04:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:04:53,607 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-09-15 00:04:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:04:53,646 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-09-15 00:04:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:04:53,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-09-15 00:04:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:04:53,648 INFO L225 Difference]: With dead ends: 56 [2020-09-15 00:04:53,648 INFO L226 Difference]: Without dead ends: 40 [2020-09-15 00:04:53,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:04:53,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-15 00:04:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-15 00:04:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-15 00:04:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-09-15 00:04:53,656 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-09-15 00:04:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:04:53,657 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-09-15 00:04:53,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:04:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-09-15 00:04:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 00:04:53,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:04:53,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:04:53,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 00:04:53,658 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:04:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:04:53,659 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times [2020-09-15 00:04:53,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:04:53,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195740416] [2020-09-15 00:04:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:04:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:04:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:04:53,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195740416] [2020-09-15 00:04:53,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:04:53,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:04:53,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801837726] [2020-09-15 00:04:53,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:04:53,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:04:53,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:04:53,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:04:53,752 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-09-15 00:04:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:04:53,805 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-09-15 00:04:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 00:04:53,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-15 00:04:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:04:53,806 INFO L225 Difference]: With dead ends: 35 [2020-09-15 00:04:53,807 INFO L226 Difference]: Without dead ends: 28 [2020-09-15 00:04:53,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:04:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-15 00:04:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-15 00:04:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-15 00:04:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-09-15 00:04:53,811 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-09-15 00:04:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:04:53,812 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-09-15 00:04:53,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:04:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-09-15 00:04:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 00:04:53,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:04:53,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:04:53,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 00:04:53,813 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:04:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:04:53,814 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-09-15 00:04:53,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:04:53,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409675664] [2020-09-15 00:04:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:04:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:04:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:04:53,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409675664] [2020-09-15 00:04:53,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:04:53,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:04:53,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916068035] [2020-09-15 00:04:53,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:04:53,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:04:53,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:04:53,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:04:53,871 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-09-15 00:04:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:04:53,879 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-09-15 00:04:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:04:53,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-15 00:04:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:04:53,880 INFO L225 Difference]: With dead ends: 35 [2020-09-15 00:04:53,881 INFO L226 Difference]: Without dead ends: 16 [2020-09-15 00:04:53,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:04:53,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-15 00:04:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-09-15 00:04:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-09-15 00:04:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-09-15 00:04:53,884 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-09-15 00:04:53,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:04:53,884 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-09-15 00:04:53,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:04:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-09-15 00:04:53,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 00:04:53,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:04:53,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:04:53,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 00:04:53,886 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:04:53,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:04:53,886 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-09-15 00:04:53,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:04:53,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933174137] [2020-09-15 00:04:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:04:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:04:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:04:53,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933174137] [2020-09-15 00:04:53,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:04:53,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:04:53,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187863735] [2020-09-15 00:04:53,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:04:53,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:04:53,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:04:53,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:04:53,961 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-09-15 00:04:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:04:53,977 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-09-15 00:04:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 00:04:53,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-15 00:04:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:04:53,978 INFO L225 Difference]: With dead ends: 15 [2020-09-15 00:04:53,978 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 00:04:53,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:04:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 00:04:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 00:04:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 00:04:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 00:04:53,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-15 00:04:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:04:53,980 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 00:04:53,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:04:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 00:04:53,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 00:04:53,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 00:04:53,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:04:53 BasicIcfg [2020-09-15 00:04:53,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 00:04:53,994 INFO L168 Benchmark]: Toolchain (without parser) took 4002.54 ms. Allocated memory was 145.8 MB in the beginning and 248.0 MB in the end (delta: 102.2 MB). Free memory was 100.4 MB in the beginning and 156.3 MB in the end (delta: -55.9 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:53,996 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 00:04:53,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.01 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.0 MB in the beginning and 159.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:54,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.08 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:54,006 INFO L168 Benchmark]: Boogie Preprocessor took 38.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:54,006 INFO L168 Benchmark]: RCFGBuilder took 471.19 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 136.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:54,007 INFO L168 Benchmark]: TraceAbstraction took 2630.12 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 136.3 MB in the beginning and 156.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-15 00:04:54,019 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.01 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.0 MB in the beginning and 159.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.08 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.19 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 136.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2630.12 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 136.3 MB in the beginning and 156.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 60 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 364 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1209 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...