/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/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:17:29,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:17:29,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:17:29,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:17:29,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:17:29,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:17:29,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:17:29,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:17:29,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:17:29,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:17:29,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:17:29,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:17:29,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:17:29,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:17:29,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:17:29,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:17:29,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:17:29,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:17:29,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:17:29,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:17:29,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:17:29,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:17:29,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:17:29,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:17:30,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:17:30,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:17:30,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:17:30,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:17:30,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:17:30,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:17:30,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:17:30,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:17:30,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:17:30,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:17:30,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:17:30,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:17:30,013 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 [2020-10-16 11:17:30,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:17:30,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:17:30,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:17:30,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:17:30,054 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:17:30,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:17:30,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:17:30,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:17:30,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:17:30,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:17:30,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:17:30,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:17:30,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:17:30,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:17:30,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:17:30,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:17:30,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:17:30,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:17:30,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:17:30,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:17:30,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:17:30,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:17:30,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:17:30,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:17:30,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:17:30,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:17:30,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:17:30,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:17:30,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:17:30,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:17:30,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:17:30,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:17:30,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:17:30,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:17:30,398 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:17:30,399 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-10-16 11:17:30,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44a4bb809/5fb8c32f3ab84436bed9b796199016e6/FLAG3ec5d9b6e [2020-10-16 11:17:31,035 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:17:31,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-10-16 11:17:31,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44a4bb809/5fb8c32f3ab84436bed9b796199016e6/FLAG3ec5d9b6e [2020-10-16 11:17:31,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44a4bb809/5fb8c32f3ab84436bed9b796199016e6 [2020-10-16 11:17:31,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:17:31,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:17:31,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:17:31,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:17:31,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:17:31,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e20d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:31, skipping insertion in model container [2020-10-16 11:17:31,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:17:31" (1/1) ... [2020-10-16 11:17:31,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:17:31,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:17:32,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:17:32,135 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:17:32,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:17:32,278 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:17:32,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32 WrapperNode [2020-10-16 11:17:32,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:17:32,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:17:32,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:17:32,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:17:32,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:17:32,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:17:32,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:17:32,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:17:32,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (1/1) ... [2020-10-16 11:17:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:17:32,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:17:32,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:17:32,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:17:32,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (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 [2020-10-16 11:17:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:17:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:17:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:17:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:17:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:17:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:17:32,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:17:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:17:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:17:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:17:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:17:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:17:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:17:32,443 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:17:32,822 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:17:32,823 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:17:32,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:17:32 BoogieIcfgContainer [2020-10-16 11:17:32,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:17:32,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:17:32,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:17:32,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:17:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:17:31" (1/3) ... [2020-10-16 11:17:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c4f6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:17:32, skipping insertion in model container [2020-10-16 11:17:32,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:17:32" (2/3) ... [2020-10-16 11:17:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c4f6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:17:32, skipping insertion in model container [2020-10-16 11:17:32,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:17:32" (3/3) ... [2020-10-16 11:17:32,837 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2020-10-16 11:17:32,850 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:17:32,850 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:17:32,859 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:17:32,860 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:17:32,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,895 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,895 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,907 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,908 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,911 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:17:32,914 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:17:32,929 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:17:32,950 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:17:32,950 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:17:32,950 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:17:32,950 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:17:32,951 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:17:32,951 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:17:32,951 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:17:32,951 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:17:32,964 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:17:32,968 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:32,971 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:32,973 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 11:17:33,018 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 11:17:33,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:17:33,024 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:17:33,027 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:17:34,669 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-16 11:17:34,669 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 11:17:34,677 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 11:17:34,705 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:17:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:17:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:17:34,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:34,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:34,718 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:34,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-16 11:17:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:34,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130662668] [2020-10-16 11:17:34,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:34,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:34,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130662668] [2020-10-16 11:17:34,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:34,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:34,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670268881] [2020-10-16 11:17:35,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:35,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:35,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:35,019 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:17:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,075 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 11:17:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:35,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:17:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,094 INFO L225 Difference]: With dead ends: 290 [2020-10-16 11:17:35,094 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 11:17:35,095 INFO L677 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 [2020-10-16 11:17:35,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 11:17:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 11:17:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 11:17:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 11:17:35,166 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 11:17:35,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,167 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 11:17:35,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 11:17:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:17:35,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:17:35,170 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-16 11:17:35,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517828089] [2020-10-16 11:17:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517828089] [2020-10-16 11:17:35,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:35,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672400393] [2020-10-16 11:17:35,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:35,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:35,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:35,250 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 11:17:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,262 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-16 11:17:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:35,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:17:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,266 INFO L225 Difference]: With dead ends: 214 [2020-10-16 11:17:35,266 INFO L226 Difference]: Without dead ends: 214 [2020-10-16 11:17:35,267 INFO L677 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 [2020-10-16 11:17:35,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-16 11:17:35,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-16 11:17:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-16 11:17:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-16 11:17:35,290 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-16 11:17:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,290 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-16 11:17:35,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-16 11:17:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:17:35,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:17:35,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-10-16 11:17:35,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484261314] [2020-10-16 11:17:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484261314] [2020-10-16 11:17:35,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:35,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972316947] [2020-10-16 11:17:35,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:35,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:35,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:35,376 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-16 11:17:35,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,406 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-10-16 11:17:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:17:35,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 11:17:35,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,409 INFO L225 Difference]: With dead ends: 254 [2020-10-16 11:17:35,409 INFO L226 Difference]: Without dead ends: 134 [2020-10-16 11:17:35,410 INFO L677 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 [2020-10-16 11:17:35,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-16 11:17:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-16 11:17:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-16 11:17:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-10-16 11:17:35,424 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-10-16 11:17:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,425 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-10-16 11:17:35,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-10-16 11:17:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:17:35,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:17:35,429 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-10-16 11:17:35,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143356903] [2020-10-16 11:17:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143356903] [2020-10-16 11:17:35,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:17:35,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804663176] [2020-10-16 11:17:35,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:35,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:35,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:35,504 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-10-16 11:17:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,513 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-10-16 11:17:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:35,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:17:35,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,515 INFO L225 Difference]: With dead ends: 128 [2020-10-16 11:17:35,515 INFO L226 Difference]: Without dead ends: 128 [2020-10-16 11:17:35,516 INFO L677 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 [2020-10-16 11:17:35,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-16 11:17:35,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-16 11:17:35,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-16 11:17:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-10-16 11:17:35,551 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-10-16 11:17:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,552 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-10-16 11:17:35,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-10-16 11:17:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:17:35,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:17:35,554 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,555 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-10-16 11:17:35,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324314] [2020-10-16 11:17:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324314] [2020-10-16 11:17:35,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:17:35,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168800887] [2020-10-16 11:17:35,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:35,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:35,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:35,606 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 4 states. [2020-10-16 11:17:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,634 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-10-16 11:17:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:17:35,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:17:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,636 INFO L225 Difference]: With dead ends: 194 [2020-10-16 11:17:35,636 INFO L226 Difference]: Without dead ends: 140 [2020-10-16 11:17:35,636 INFO L677 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 [2020-10-16 11:17:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-16 11:17:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2020-10-16 11:17:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-16 11:17:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 297 transitions. [2020-10-16 11:17:35,646 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 297 transitions. Word has length 12 [2020-10-16 11:17:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,647 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 297 transitions. [2020-10-16 11:17:35,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 297 transitions. [2020-10-16 11:17:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:17:35,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:17:35,649 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,649 INFO L82 PathProgramCache]: Analyzing trace with hash -188087018, now seen corresponding path program 2 times [2020-10-16 11:17:35,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008473004] [2020-10-16 11:17:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008473004] [2020-10-16 11:17:35,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:35,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830393186] [2020-10-16 11:17:35,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:17:35,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:17:35,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:17:35,735 INFO L87 Difference]: Start difference. First operand 128 states and 297 transitions. Second operand 4 states. [2020-10-16 11:17:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,765 INFO L93 Difference]: Finished difference Result 146 states and 330 transitions. [2020-10-16 11:17:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:17:35,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:17:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,767 INFO L225 Difference]: With dead ends: 146 [2020-10-16 11:17:35,767 INFO L226 Difference]: Without dead ends: 86 [2020-10-16 11:17:35,768 INFO L677 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 [2020-10-16 11:17:35,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-16 11:17:35,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-16 11:17:35,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-16 11:17:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 186 transitions. [2020-10-16 11:17:35,778 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 186 transitions. Word has length 12 [2020-10-16 11:17:35,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,778 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 186 transitions. [2020-10-16 11:17:35,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:17:35,779 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2020-10-16 11:17:35,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:17:35,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:17:35,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:17:35,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:17:35,780 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:17:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:17:35,781 INFO L82 PathProgramCache]: Analyzing trace with hash -118658274, now seen corresponding path program 1 times [2020-10-16 11:17:35,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:17:35,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023234599] [2020-10-16 11:17:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:17:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:17:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:17:35,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023234599] [2020-10-16 11:17:35,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:17:35,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:17:35,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582193221] [2020-10-16 11:17:35,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:17:35,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:17:35,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:17:35,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:17:35,825 INFO L87 Difference]: Start difference. First operand 86 states and 186 transitions. Second operand 3 states. [2020-10-16 11:17:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:17:35,832 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-10-16 11:17:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:17:35,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 11:17:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:17:35,834 INFO L225 Difference]: With dead ends: 74 [2020-10-16 11:17:35,834 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:17:35,834 INFO L677 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 [2020-10-16 11:17:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:17:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:17:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:17:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:17:35,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-16 11:17:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:17:35,835 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:17:35,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:17:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:17:35,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:17:35,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:17:35,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:17:35 BasicIcfg [2020-10-16 11:17:35,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:17:35,842 INFO L168 Benchmark]: Toolchain (without parser) took 4390.26 ms. Allocated memory was 141.0 MB in the beginning and 245.4 MB in the end (delta: 104.3 MB). Free memory was 101.0 MB in the beginning and 181.0 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:35,843 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:17:35,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.83 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 158.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:35,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.30 ms. Allocated memory is still 202.9 MB. Free memory was 158.9 MB in the beginning and 156.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:35,846 INFO L168 Benchmark]: Boogie Preprocessor took 30.88 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:35,846 INFO L168 Benchmark]: RCFGBuilder took 460.84 ms. Allocated memory is still 202.9 MB. Free memory was 155.1 MB in the beginning and 132.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:17:35,847 INFO L168 Benchmark]: TraceAbstraction took 3011.98 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 132.2 MB in the beginning and 181.0 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:17:35,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 825.83 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 158.9 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.30 ms. Allocated memory is still 202.9 MB. Free memory was 158.9 MB in the beginning and 156.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.88 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.84 ms. Allocated memory is still 202.9 MB. Free memory was 155.1 MB in the beginning and 132.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3011.98 ms. Allocated memory was 202.9 MB in the beginning and 245.4 MB in the end (delta: 42.5 MB). Free memory was 132.2 MB in the beginning and 181.0 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 69 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 MoverChecksTotal - 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 127 SDtfs, 83 SDslu, 111 SDs, 0 SdLazy, 44 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...