/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:22:31,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:22:31,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:22:31,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:22:31,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:22:31,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:22:31,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:22:31,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:22:31,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:22:31,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:22:31,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:22:31,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:22:31,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:22:31,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:22:31,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:22:31,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:22:31,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:22:31,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:22:31,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:22:31,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:22:32,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:22:32,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:22:32,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:22:32,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:22:32,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:22:32,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:22:32,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:22:32,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:22:32,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:22:32,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:22:32,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:22:32,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:22:32,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:22:32,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:22:32,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:22:32,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:22:32,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:22:32,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:22:32,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:22:32,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:22:32,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:22:32,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 18:22:32,033 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:22:32,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:22:32,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:22:32,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:22:32,035 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:22:32,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:22:32,035 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:22:32,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:22:32,037 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:22:32,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:22:32,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:22:32,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:22:32,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:22:32,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:22:32,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:22:32,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:22:32,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:22:32,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:22:32,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:22:32,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:22:32,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:22:32,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:22:32,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:22:32,343 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:22:32,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-18 18:22:32,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6a5e375/dec4fed9e33b487cb3ead9c635eba1d8/FLAGe491e76c9 [2019-12-18 18:22:32,948 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:22:32,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-18 18:22:32,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6a5e375/dec4fed9e33b487cb3ead9c635eba1d8/FLAGe491e76c9 [2019-12-18 18:22:33,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6a5e375/dec4fed9e33b487cb3ead9c635eba1d8 [2019-12-18 18:22:33,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:22:33,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:22:33,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:22:33,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:22:33,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:22:33,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:33,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486dd87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33, skipping insertion in model container [2019-12-18 18:22:33,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:33,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:22:33,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:22:33,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:22:33,793 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:22:33,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:22:33,934 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:22:33,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33 WrapperNode [2019-12-18 18:22:33,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:22:33,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:22:33,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:22:33,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:22:33,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:33,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:33,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:22:33,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:22:33,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:22:33,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:22:34,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... [2019-12-18 18:22:34,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:22:34,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:22:34,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:22:34,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:22:34,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:22:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:22:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:22:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:22:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:22:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:22:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:22:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:22:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:22:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:22:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:22:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:22:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:22:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:22:34,094 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 18:22:34,472 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:22:34,473 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:22:34,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:22:34 BoogieIcfgContainer [2019-12-18 18:22:34,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:22:34,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:22:34,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:22:34,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:22:34,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:22:33" (1/3) ... [2019-12-18 18:22:34,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4877bf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:22:34, skipping insertion in model container [2019-12-18 18:22:34,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:22:33" (2/3) ... [2019-12-18 18:22:34,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4877bf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:22:34, skipping insertion in model container [2019-12-18 18:22:34,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:22:34" (3/3) ... [2019-12-18 18:22:34,483 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2019-12-18 18:22:34,493 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:22:34,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:22:34,505 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:22:34,506 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:22:34,537 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,538 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,538 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,540 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,540 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,541 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,542 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,542 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,549 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,549 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,549 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,556 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,556 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,557 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,557 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,560 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,561 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,561 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,561 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:22:34,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:22:34,596 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:22:34,596 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:22:34,596 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:22:34,596 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:22:34,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:22:34,597 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:22:34,597 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:22:34,597 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:22:34,611 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 18:22:34,613 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:22:34,654 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:22:34,655 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:22:34,662 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:22:34,667 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:22:34,684 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:22:34,685 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:22:34,686 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:22:34,688 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:22:34,689 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:22:36,247 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 18:22:36,321 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-18 18:22:36,321 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 18:22:36,325 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 18:22:36,344 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 18:22:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 18:22:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:22:36,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:22:36,359 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:22:36,360 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:22:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:22:36,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-18 18:22:36,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:22:36,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624049833] [2019-12-18 18:22:36,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:22:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:22:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:22:36,641 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624049833] [2019-12-18 18:22:36,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:22:36,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:22:36,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109202172] [2019-12-18 18:22:36,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:22:36,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:22:36,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:22:36,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:22:36,669 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 18:22:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:22:36,707 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 18:22:36,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:22:36,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:22:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:22:36,741 INFO L225 Difference]: With dead ends: 50 [2019-12-18 18:22:36,741 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:22:36,745 INFO L631 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 [2019-12-18 18:22:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:22:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:22:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:22:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:22:36,786 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 18:22:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:22:36,787 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:22:36,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:22:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:22:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:22:36,789 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:22:36,789 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:22:36,789 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:22:36,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:22:36,790 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-18 18:22:36,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:22:36,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078339641] [2019-12-18 18:22:36,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:22:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:22:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:22:36,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078339641] [2019-12-18 18:22:36,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:22:36,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:22:36,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598290956] [2019-12-18 18:22:36,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:22:36,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:22:36,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:22:36,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:22:36,871 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 18:22:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:22:36,912 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-18 18:22:36,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:22:36,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 18:22:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:22:36,914 INFO L225 Difference]: With dead ends: 39 [2019-12-18 18:22:36,914 INFO L226 Difference]: Without dead ends: 31 [2019-12-18 18:22:36,915 INFO L631 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 [2019-12-18 18:22:36,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-18 18:22:36,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-18 18:22:36,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-18 18:22:36,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-18 18:22:36,921 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-18 18:22:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:22:36,921 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-18 18:22:36,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:22:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-18 18:22:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:22:36,922 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:22:36,922 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:22:36,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:22:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:22:36,923 INFO L82 PathProgramCache]: Analyzing trace with hash 400560283, now seen corresponding path program 1 times [2019-12-18 18:22:36,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:22:36,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003012935] [2019-12-18 18:22:36,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:22:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:22:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:22:36,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003012935] [2019-12-18 18:22:36,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:22:36,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:22:36,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142940695] [2019-12-18 18:22:36,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:22:36,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:22:36,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:22:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:22:36,990 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-18 18:22:37,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:22:37,022 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-18 18:22:37,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 18:22:37,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:22:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:22:37,024 INFO L225 Difference]: With dead ends: 40 [2019-12-18 18:22:37,024 INFO L226 Difference]: Without dead ends: 30 [2019-12-18 18:22:37,024 INFO L631 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 [2019-12-18 18:22:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-18 18:22:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-18 18:22:37,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:22:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-18 18:22:37,029 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-18 18:22:37,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:22:37,029 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-18 18:22:37,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:22:37,030 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-18 18:22:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:22:37,030 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:22:37,031 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:22:37,031 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:22:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:22:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-18 18:22:37,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:22:37,032 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482013255] [2019-12-18 18:22:37,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:22:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:22:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:22:37,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482013255] [2019-12-18 18:22:37,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:22:37,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:22:37,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435785367] [2019-12-18 18:22:37,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:22:37,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:22:37,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:22:37,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:22:37,086 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 4 states. [2019-12-18 18:22:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:22:37,110 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-18 18:22:37,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:22:37,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:22:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:22:37,111 INFO L225 Difference]: With dead ends: 29 [2019-12-18 18:22:37,111 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 18:22:37,111 INFO L631 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 [2019-12-18 18:22:37,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 18:22:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 18:22:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 18:22:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 18:22:37,116 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 18:22:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:22:37,116 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 18:22:37,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:22:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 18:22:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:22:37,117 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:22:37,117 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:22:37,118 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:22:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:22:37,118 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-18 18:22:37,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:22:37,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92131149] [2019-12-18 18:22:37,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:22:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:22:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:22:37,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92131149] [2019-12-18 18:22:37,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:22:37,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:22:37,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112124909] [2019-12-18 18:22:37,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:22:37,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:22:37,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:22:37,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:22:37,196 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 3 states. [2019-12-18 18:22:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:22:37,206 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 18:22:37,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:22:37,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 18:22:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:22:37,207 INFO L225 Difference]: With dead ends: 20 [2019-12-18 18:22:37,208 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:22:37,208 INFO L631 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 [2019-12-18 18:22:37,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:22:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:22:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:22:37,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:22:37,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:22:37,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:22:37,213 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:22:37,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:22:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:22:37,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:22:37,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:22:37 BasicIcfg [2019-12-18 18:22:37,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:22:37,228 INFO L168 Benchmark]: Toolchain (without parser) took 3927.27 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 102.5 MB in the beginning and 141.8 MB in the end (delta: -39.3 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,229 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.08 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.02 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 158.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,236 INFO L168 Benchmark]: Boogie Preprocessor took 25.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,236 INFO L168 Benchmark]: RCFGBuilder took 452.83 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,237 INFO L168 Benchmark]: TraceAbstraction took 2747.78 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 136.9 MB in the beginning and 141.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:22:37,244 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.08 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.02 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 158.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.83 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2747.78 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 136.9 MB in the beginning and 141.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 32 SDslu, 51 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 971 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...