/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:20:44,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:20:44,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:20:44,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:20:44,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:20:44,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:20:44,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:20:44,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:20:44,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:20:44,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:20:44,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:20:44,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:20:44,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:20:44,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:20:45,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:20:45,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:20:45,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:20:45,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:20:45,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:20:45,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:20:45,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:20:45,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:20:45,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:20:45,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:20:45,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:20:45,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:20:45,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:20:45,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:20:45,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:20:45,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:20:45,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:20:45,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:20:45,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:20:45,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:20:45,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:20:45,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:20:45,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:20:45,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:20:45,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:20:45,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:20:45,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:20:45,036 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-VariableLbe-MCR.epf [2019-12-27 22:20:45,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:20:45,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:20:45,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:20:45,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:20:45,068 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:20:45,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:20:45,071 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:20:45,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:20:45,072 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:20:45,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:20:45,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:20:45,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:20:45,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:20:45,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:20:45,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:20:45,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:20:45,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:20:45,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:20:45,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:20:45,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:20:45,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:20:45,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:20:45,077 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:20:45,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:20:45,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:20:45,078 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:20:45,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:20:45,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:20:45,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:20:45,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:20:45,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:20:45,395 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:20:45,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2019-12-27 22:20:45,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38faacc0/b4365164aaf14b26958e52006eb05535/FLAGb59a898cd [2019-12-27 22:20:46,045 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:20:46,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2019-12-27 22:20:46,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38faacc0/b4365164aaf14b26958e52006eb05535/FLAGb59a898cd [2019-12-27 22:20:46,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38faacc0/b4365164aaf14b26958e52006eb05535 [2019-12-27 22:20:46,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:20:46,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:20:46,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:20:46,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:20:46,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:20:46,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:20:46" (1/1) ... [2019-12-27 22:20:46,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fb4df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:46, skipping insertion in model container [2019-12-27 22:20:46,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:20:46" (1/1) ... [2019-12-27 22:20:46,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:20:46,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:20:46,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:20:46,926 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:20:47,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:20:47,077 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:20:47,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47 WrapperNode [2019-12-27 22:20:47,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:20:47,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:20:47,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:20:47,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:20:47,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:20:47,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:20:47,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:20:47,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:20:47,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (1/1) ... [2019-12-27 22:20:47,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:20:47,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:20:47,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:20:47,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:20:47,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (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 [2019-12-27 22:20:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:20:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:20:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:20:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:20:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:20:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:20:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:20:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:20:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:20:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:20:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:20:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:20:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:20:47,211 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:20:47,564 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:20:47,564 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:20:47,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:20:47 BoogieIcfgContainer [2019-12-27 22:20:47,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:20:47,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:20:47,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:20:47,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:20:47,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:20:46" (1/3) ... [2019-12-27 22:20:47,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2738afe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:20:47, skipping insertion in model container [2019-12-27 22:20:47,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:20:47" (2/3) ... [2019-12-27 22:20:47,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2738afe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:20:47, skipping insertion in model container [2019-12-27 22:20:47,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:20:47" (3/3) ... [2019-12-27 22:20:47,574 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2019-12-27 22:20:47,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:20:47,582 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:20:47,588 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:20:47,589 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:20:47,626 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,626 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,626 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,627 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,627 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,628 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,628 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,628 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,629 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,629 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,629 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,629 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,630 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,630 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,630 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,631 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,631 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,631 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,635 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,635 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,636 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,636 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,646 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,646 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,647 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,647 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,649 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,649 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,649 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,650 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:20:47,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:20:47,678 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:20:47,678 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:20:47,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:20:47,678 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:20:47,679 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:20:47,679 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:20:47,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:20:47,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:20:47,691 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:20:47,693 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:20:47,735 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:20:47,736 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:20:47,743 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:20:47,748 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:20:47,768 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:20:47,768 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:20:47,770 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:20:47,772 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:20:47,773 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:20:49,193 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 22:20:49,193 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 22:20:49,197 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 22:20:49,208 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 22:20:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 22:20:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:20:49,217 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:49,217 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:49,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:49,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 22:20:49,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:49,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485979825] [2019-12-27 22:20:49,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:49,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485979825] [2019-12-27 22:20:49,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:49,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:20:49,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1172006125] [2019-12-27 22:20:49,427 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:49,433 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:49,446 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:20:49,446 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:49,450 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:49,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:20:49,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:49,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:20:49,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:20:49,463 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 22:20:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:49,510 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 22:20:49,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:20:49,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:20:49,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:49,543 INFO L225 Difference]: With dead ends: 52 [2019-12-27 22:20:49,543 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:20:49,544 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 [2019-12-27 22:20:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:20:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:20:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:20:49,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:20:49,601 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:20:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:49,603 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:20:49,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:20:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:20:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:20:49,605 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:49,605 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:49,609 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 22:20:49,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:49,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331108348] [2019-12-27 22:20:49,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:49,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331108348] [2019-12-27 22:20:49,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:49,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:20:49,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2091677592] [2019-12-27 22:20:49,727 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:49,728 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:49,732 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:20:49,732 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:49,733 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:49,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:20:49,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:49,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:20:49,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:20:49,736 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 22:20:49,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:49,745 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 22:20:49,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:20:49,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:20:49,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:49,746 INFO L225 Difference]: With dead ends: 33 [2019-12-27 22:20:49,746 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 22:20:49,747 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 [2019-12-27 22:20:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 22:20:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 22:20:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 22:20:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 22:20:49,752 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 22:20:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:49,753 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 22:20:49,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:20:49,753 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 22:20:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:20:49,754 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:49,754 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:49,754 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:49,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:49,755 INFO L82 PathProgramCache]: Analyzing trace with hash -721473620, now seen corresponding path program 1 times [2019-12-27 22:20:49,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:49,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312006283] [2019-12-27 22:20:49,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:49,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312006283] [2019-12-27 22:20:49,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:49,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:20:49,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1710423985] [2019-12-27 22:20:49,816 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:49,817 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:49,819 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 22:20:49,819 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:49,822 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:49,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:20:49,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:49,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:20:49,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:20:49,823 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 22:20:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:49,829 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:20:49,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:20:49,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:20:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:49,831 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:20:49,832 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:20:49,832 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 [2019-12-27 22:20:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:20:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:20:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:20:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:20:49,836 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 22:20:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:49,837 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:20:49,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:20:49,837 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:20:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:20:49,838 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:49,838 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:49,838 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:49,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:49,838 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 22:20:49,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:49,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042117177] [2019-12-27 22:20:49,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:49,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042117177] [2019-12-27 22:20:49,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:49,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:20:49,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [996563749] [2019-12-27 22:20:49,908 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:49,909 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:49,910 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:20:49,911 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:49,911 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:49,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:20:49,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:49,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:20:49,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:20:49,912 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 22:20:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:49,920 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 22:20:49,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:20:49,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:20:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:49,921 INFO L225 Difference]: With dead ends: 35 [2019-12-27 22:20:49,921 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 22:20:49,921 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 [2019-12-27 22:20:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 22:20:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 22:20:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 22:20:49,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 22:20:49,924 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 22:20:49,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:49,925 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 22:20:49,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:20:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 22:20:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:20:49,925 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:49,925 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:49,926 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:49,926 INFO L82 PathProgramCache]: Analyzing trace with hash -810632101, now seen corresponding path program 1 times [2019-12-27 22:20:49,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:49,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670945390] [2019-12-27 22:20:49,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:49,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670945390] [2019-12-27 22:20:49,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:49,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:20:49,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [313763046] [2019-12-27 22:20:49,984 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:49,985 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:49,987 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:20:49,987 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:49,987 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:49,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:20:49,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:49,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:20:49,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:20:49,988 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 22:20:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:50,007 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 22:20:50,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:20:50,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:20:50,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:50,008 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:20:50,008 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:20:50,009 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 [2019-12-27 22:20:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:20:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:20:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:20:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:20:50,011 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 22:20:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:50,012 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:20:50,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:20:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:20:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:20:50,013 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:20:50,013 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:20:50,013 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:20:50,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:20:50,013 INFO L82 PathProgramCache]: Analyzing trace with hash -867176101, now seen corresponding path program 2 times [2019-12-27 22:20:50,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:20:50,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410664599] [2019-12-27 22:20:50,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:20:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:20:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:20:50,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410664599] [2019-12-27 22:20:50,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:20:50,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:20:50,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [713469955] [2019-12-27 22:20:50,065 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:20:50,066 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:20:50,068 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:20:50,068 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:20:50,068 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:20:50,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:20:50,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:20:50,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:20:50,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:20:50,070 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 22:20:50,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:20:50,082 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:20:50,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:20:50,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:20:50,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:20:50,083 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:20:50,083 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:20:50,083 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 [2019-12-27 22:20:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:20:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:20:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:20:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:20:50,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:20:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:20:50,084 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:20:50,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:20:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:20:50,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:20:50,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:20:50 BasicIcfg [2019-12-27 22:20:50,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:20:50,091 INFO L168 Benchmark]: Toolchain (without parser) took 3732.89 ms. Allocated memory was 144.7 MB in the beginning and 249.6 MB in the end (delta: 104.9 MB). Free memory was 101.3 MB in the beginning and 153.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,092 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.98 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 156.2 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,094 INFO L168 Benchmark]: Boogie Preprocessor took 26.26 ms. Allocated memory is still 201.3 MB. Free memory was 154.1 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,095 INFO L168 Benchmark]: RCFGBuilder took 410.15 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 132.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,096 INFO L168 Benchmark]: TraceAbstraction took 2521.31 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 131.4 MB in the beginning and 153.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:20:50,100 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.98 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 156.2 MB in the end (delta: -55.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.26 ms. Allocated memory is still 201.3 MB. Free memory was 154.1 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.15 ms. Allocated memory is still 201.3 MB. Free memory was 152.8 MB in the beginning and 132.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2521.31 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 131.4 MB in the beginning and 153.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 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: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 21 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...