/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:23:07,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:23:07,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:23:08,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:23:08,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:23:08,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:23:08,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:23:08,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:23:08,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:23:08,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:23:08,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:23:08,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:23:08,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:23:08,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:23:08,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:23:08,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:23:08,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:23:08,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:23:08,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:23:08,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:23:08,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:23:08,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:23:08,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:23:08,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:23:08,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:23:08,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:23:08,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:23:08,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:23:08,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:23:08,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:23:08,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:23:08,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:23:08,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:23:08,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:23:08,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:23:08,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:23:08,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:23:08,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:23:08,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:23:08,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:23:08,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:23:08,114 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:23:08,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:23:08,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:23:08,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:23:08,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:23:08,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:23:08,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:23:08,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:23:08,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:23:08,116 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:23:08,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:23:08,117 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:23:08,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:23:08,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:23:08,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:23:08,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:23:08,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:23:08,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:23:08,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:23:08,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:23:08,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:23:08,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:23:08,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:23:08,119 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:23:08,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:23:08,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:23:08,119 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:23:08,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:23:08,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:23:08,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:23:08,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:23:08,467 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:23:08,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-10-22 02:23:08,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a01aaba/3d0e20f2ff8f4db5b5b30c56b4ebde23/FLAGfde442c96 [2020-10-22 02:23:09,121 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:23:09,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-10-22 02:23:09,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a01aaba/3d0e20f2ff8f4db5b5b30c56b4ebde23/FLAGfde442c96 [2020-10-22 02:23:09,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a01aaba/3d0e20f2ff8f4db5b5b30c56b4ebde23 [2020-10-22 02:23:09,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:23:09,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:23:09,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:09,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:23:09,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:23:09,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:09" (1/1) ... [2020-10-22 02:23:09,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd840e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:09, skipping insertion in model container [2020-10-22 02:23:09,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:09" (1/1) ... [2020-10-22 02:23:09,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:23:09,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:23:09,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:09,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:23:09,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:10,035 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:23:10,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10 WrapperNode [2020-10-22 02:23:10,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:10,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:10,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:23:10,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:23:10,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:10,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:23:10,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:23:10,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:23:10,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (1/1) ... [2020-10-22 02:23:10,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:23:10,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:23:10,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:23:10,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:23:10,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (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 [2020-10-22 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:23:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:23:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:23:10,187 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:23:10,606 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:23:10,606 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:23:10,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:10 BoogieIcfgContainer [2020-10-22 02:23:10,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:23:10,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:23:10,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:23:10,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:23:10,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:23:09" (1/3) ... [2020-10-22 02:23:10,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43becd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:10, skipping insertion in model container [2020-10-22 02:23:10,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:10" (2/3) ... [2020-10-22 02:23:10,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43becd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:10, skipping insertion in model container [2020-10-22 02:23:10,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:10" (3/3) ... [2020-10-22 02:23:10,619 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-10-22 02:23:10,631 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:23:10,631 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:23:10,639 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:23:10,640 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:23:10,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,669 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,673 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,674 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:10,695 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:23:10,707 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:23:10,727 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:23:10,727 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:23:10,727 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:23:10,727 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:23:10,727 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:23:10,728 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:23:10,728 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:23:10,728 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:23:10,741 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:23:10,742 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:10,745 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:10,747 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:10,800 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-22 02:23:10,800 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:23:10,807 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:23:10,814 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:23:12,500 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-22 02:23:12,731 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-10-22 02:23:12,731 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 02:23:12,739 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-22 02:23:12,765 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:23:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:23:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:23:12,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:12,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:12,777 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-10-22 02:23:12,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:12,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164684004] [2020-10-22 02:23:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:13,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164684004] [2020-10-22 02:23:13,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:13,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:23:13,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1099374034] [2020-10-22 02:23:13,058 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:13,062 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:13,074 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:23:13,075 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:13,079 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:13,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:13,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:13,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:13,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:13,094 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-10-22 02:23:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:13,192 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-10-22 02:23:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:13,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-22 02:23:13,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:13,215 INFO L225 Difference]: With dead ends: 281 [2020-10-22 02:23:13,215 INFO L226 Difference]: Without dead ends: 180 [2020-10-22 02:23:13,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-22 02:23:13,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-22 02:23:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-22 02:23:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-22 02:23:13,303 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-10-22 02:23:13,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:13,304 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-22 02:23:13,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-22 02:23:13,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:23:13,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:13,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:13,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:23:13,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:13,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:13,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-10-22 02:23:13,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:13,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54039500] [2020-10-22 02:23:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:13,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54039500] [2020-10-22 02:23:13,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:13,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:13,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2029636108] [2020-10-22 02:23:13,399 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:13,400 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:13,403 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-10-22 02:23:13,404 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:13,583 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1338#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:13,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:23:13,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:13,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:23:13,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:23:13,585 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 6 states. [2020-10-22 02:23:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:13,635 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-22 02:23:13,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:23:13,636 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-22 02:23:13,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:13,637 INFO L225 Difference]: With dead ends: 163 [2020-10-22 02:23:13,637 INFO L226 Difference]: Without dead ends: 126 [2020-10-22 02:23:13,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:23:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-22 02:23:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-22 02:23:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-22 02:23:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-22 02:23:13,648 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-22 02:23:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:13,648 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-22 02:23:13,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:23:13,648 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-22 02:23:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:23:13,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:13,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:13,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:23:13,651 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:13,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:13,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-10-22 02:23:13,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:13,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267262604] [2020-10-22 02:23:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:13,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267262604] [2020-10-22 02:23:13,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:13,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:23:13,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1224590201] [2020-10-22 02:23:13,774 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:13,775 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:13,782 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-10-22 02:23:13,782 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:14,108 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1764#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:14,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:23:14,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:14,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:23:14,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:23:14,110 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-10-22 02:23:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:14,192 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 02:23:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:23:14,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-22 02:23:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:14,200 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:23:14,200 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:23:14,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:23:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:23:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:23:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:23:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 02:23:14,211 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 02:23:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:14,216 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 02:23:14,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:23:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 02:23:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:14,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:14,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:14,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:23:14,219 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:14,220 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-10-22 02:23:14,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:14,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311988559] [2020-10-22 02:23:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:14,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311988559] [2020-10-22 02:23:14,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:14,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:14,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [611753824] [2020-10-22 02:23:14,355 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:14,359 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:14,364 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 02:23:14,364 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:14,665 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:14,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:14,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:14,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:14,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:14,667 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 02:23:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:14,691 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-22 02:23:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:14,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:14,692 INFO L225 Difference]: With dead ends: 133 [2020-10-22 02:23:14,692 INFO L226 Difference]: Without dead ends: 54 [2020-10-22 02:23:14,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-22 02:23:14,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-22 02:23:14,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-22 02:23:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-22 02:23:14,696 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-22 02:23:14,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:14,697 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-22 02:23:14,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:14,697 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-22 02:23:14,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:14,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:14,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:14,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:23:14,699 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:14,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:14,699 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-10-22 02:23:14,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:14,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491620546] [2020-10-22 02:23:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:14,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491620546] [2020-10-22 02:23:14,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:14,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:14,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1060234104] [2020-10-22 02:23:14,744 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:14,746 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:14,751 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-10-22 02:23:14,751 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:14,854 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:14,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:14,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:14,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:14,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:14,856 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-22 02:23:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:14,872 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-22 02:23:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:14,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:14,874 INFO L225 Difference]: With dead ends: 67 [2020-10-22 02:23:14,874 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 02:23:14,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 02:23:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 02:23:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 02:23:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 02:23:14,877 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 02:23:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:14,878 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 02:23:14,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 02:23:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:14,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:14,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:14,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:23:14,879 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:14,879 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-10-22 02:23:14,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:14,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576455321] [2020-10-22 02:23:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:14,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576455321] [2020-10-22 02:23:14,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:14,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:14,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1523473150] [2020-10-22 02:23:14,930 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:14,931 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:14,935 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 02:23:14,935 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:15,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:15,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:15,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:15,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:15,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:15,007 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 02:23:15,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:15,017 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 02:23:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:15,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:15,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:15,018 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:23:15,018 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:23:15,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:23:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:23:15,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:23:15,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:23:15,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:23:15,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:15,020 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:23:15,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:23:15,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:23:15,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:23:15,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:23:15 BasicIcfg [2020-10-22 02:23:15,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:23:15,027 INFO L168 Benchmark]: Toolchain (without parser) took 5704.99 ms. Allocated memory was 140.0 MB in the beginning and 280.0 MB in the end (delta: 140.0 MB). Free memory was 101.1 MB in the beginning and 176.6 MB in the end (delta: -75.6 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,028 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.84 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 159.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.86 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,030 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,031 INFO L168 Benchmark]: RCFGBuilder took 493.87 ms. Allocated memory is still 203.4 MB. Free memory was 155.5 MB in the beginning and 131.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,032 INFO L168 Benchmark]: TraceAbstraction took 4414.56 ms. Allocated memory was 203.4 MB in the beginning and 280.0 MB in the end (delta: 76.5 MB). Free memory was 130.5 MB in the beginning and 176.6 MB in the end (delta: -46.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:15,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.84 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 159.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.86 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.87 ms. Allocated memory is still 203.4 MB. Free memory was 155.5 MB in the beginning and 131.1 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4414.56 ms. Allocated memory was 203.4 MB in the beginning and 280.0 MB in the end (delta: 76.5 MB). Free memory was 130.5 MB in the beginning and 176.6 MB in the end (delta: -46.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 792 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 115 SDtfs, 155 SDslu, 172 SDs, 0 SdLazy, 65 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...