/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_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:23:14,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:23:14,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:23:14,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:23:14,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:23:14,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:23:14,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:23:14,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:23:14,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:23:14,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:23:14,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:23:14,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:23:14,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:23:14,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:23:14,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:23:14,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:23:14,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:23:14,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:23:14,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:23:14,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:23:14,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:23:14,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:23:14,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:23:14,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:23:14,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:23:14,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:23:14,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:23:14,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:23:14,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:23:14,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:23:14,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:23:14,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:23:14,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:23:14,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:23:14,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:23:14,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:23:14,986 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 02:23:15,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:23:15,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:23:15,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:23:15,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:23:15,019 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:23:15,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:23:15,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:23:15,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:23:15,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:23:15,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:23:15,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:23:15,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:23:15,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:23:15,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:23:15,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:23:15,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:23:15,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:23:15,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:23:15,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:23:15,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:23:15,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:23:15,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:23:15,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:23:15,026 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:23:15,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:23:15,027 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:23:15,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:23:15,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:23:15,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:23:15,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:23:15,335 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:23:15,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-10-22 02:23:15,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3dce75c5/99b617128c314d98891b53bb581b4d7c/FLAG6c3de3915 [2020-10-22 02:23:15,904 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:23:15,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2020-10-22 02:23:15,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3dce75c5/99b617128c314d98891b53bb581b4d7c/FLAG6c3de3915 [2020-10-22 02:23:16,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3dce75c5/99b617128c314d98891b53bb581b4d7c [2020-10-22 02:23:16,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:23:16,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:23:16,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:16,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:23:16,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:23:16,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5123a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16, skipping insertion in model container [2020-10-22 02:23:16,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:23:16,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:23:16,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:16,773 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:23:16,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:16,906 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:23:16,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16 WrapperNode [2020-10-22 02:23:16,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:16,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:16,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:23:16,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:23:16,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:16,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:23:16,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:23:16,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:23:16,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (1/1) ... [2020-10-22 02:23:16,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:23:16,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:23:16,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:23:16,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:23:16,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (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 02:23:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:23:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:23:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:23:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:23:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:23:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:23:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:23:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:23:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:23:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:23:17,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:23:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:23:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:23:17,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:23:17,080 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 02:23:17,461 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:23:17,461 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:23:17,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:17 BoogieIcfgContainer [2020-10-22 02:23:17,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:23:17,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:23:17,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:23:17,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:23:17,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:23:16" (1/3) ... [2020-10-22 02:23:17,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4dad5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:17, skipping insertion in model container [2020-10-22 02:23:17,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:16" (2/3) ... [2020-10-22 02:23:17,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4dad5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:17, skipping insertion in model container [2020-10-22 02:23:17,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:17" (3/3) ... [2020-10-22 02:23:17,482 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2020-10-22 02:23:17,495 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:23:17,495 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:23:17,503 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:23:17,504 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:23:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,540 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,540 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,540 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,546 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,546 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,552 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,553 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:17,559 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:23:17,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:23:17,593 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:23:17,593 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:23:17,594 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:23:17,594 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:23:17,594 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:23:17,594 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:23:17,594 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:23:17,594 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:23:17,609 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:23:17,609 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:17,612 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:17,614 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:17,664 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-22 02:23:17,664 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:23:17,670 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 02:23:17,673 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:23:19,311 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-22 02:23:19,550 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-10-22 02:23:19,550 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 02:23:19,560 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-22 02:23:19,589 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:23:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:23:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:23:19,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:19,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:19,601 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:19,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-10-22 02:23:19,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:19,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166614482] [2020-10-22 02:23:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:19,871 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 02:23:19,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166614482] [2020-10-22 02:23:19,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:19,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:23:19,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [58037664] [2020-10-22 02:23:19,875 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:19,878 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:19,894 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:23:19,894 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:19,899 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:19,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:19,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:19,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:19,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:19,918 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-10-22 02:23:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:19,981 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-10-22 02:23:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:19,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-22 02:23:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:20,021 INFO L225 Difference]: With dead ends: 281 [2020-10-22 02:23:20,021 INFO L226 Difference]: Without dead ends: 180 [2020-10-22 02:23:20,022 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 02:23:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-22 02:23:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-22 02:23:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-22 02:23:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-22 02:23:20,082 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-10-22 02:23:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:20,083 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-22 02:23:20,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-22 02:23:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:23:20,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:20,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:20,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:23:20,085 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-10-22 02:23:20,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:20,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798438627] [2020-10-22 02:23:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:20,217 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 02:23:20,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798438627] [2020-10-22 02:23:20,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:20,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:20,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1825769240] [2020-10-22 02:23:20,218 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:20,220 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:20,223 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-10-22 02:23:20,223 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:20,425 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1338#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:20,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:23:20,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:23:20,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:23:20,428 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 6 states. [2020-10-22 02:23:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:20,475 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-22 02:23:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:23:20,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-22 02:23:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:20,477 INFO L225 Difference]: With dead ends: 163 [2020-10-22 02:23:20,478 INFO L226 Difference]: Without dead ends: 126 [2020-10-22 02:23:20,479 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 02:23:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-22 02:23:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-22 02:23:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-22 02:23:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-22 02:23:20,491 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-22 02:23:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:20,491 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-22 02:23:20,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:23:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-22 02:23:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:23:20,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:20,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:20,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:23:20,494 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:20,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:20,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-10-22 02:23:20,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:20,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489586731] [2020-10-22 02:23:20,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:20,643 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 02:23:20,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489586731] [2020-10-22 02:23:20,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:20,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:23:20,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [487083911] [2020-10-22 02:23:20,645 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:20,647 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:20,652 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-10-22 02:23:20,653 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:20,947 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1764#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:20,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:23:20,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:20,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:23:20,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:23:20,949 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-10-22 02:23:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:21,029 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 02:23:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:23:21,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-22 02:23:21,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:21,035 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:23:21,036 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:23:21,036 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 02:23:21,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:23:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:23:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:23:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 02:23:21,053 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 02:23:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:21,053 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 02:23:21,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:23:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 02:23:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:21,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:21,055 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 02:23:21,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:23:21,056 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-10-22 02:23:21,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:21,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774896255] [2020-10-22 02:23:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:21,164 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 02:23:21,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774896255] [2020-10-22 02:23:21,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:21,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:21,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2010828979] [2020-10-22 02:23:21,168 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:21,172 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:21,179 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 02:23:21,179 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:21,491 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:21,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:21,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:21,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:21,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:21,493 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 02:23:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:21,520 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-22 02:23:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:21,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:21,522 INFO L225 Difference]: With dead ends: 133 [2020-10-22 02:23:21,522 INFO L226 Difference]: Without dead ends: 54 [2020-10-22 02:23:21,522 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 02:23:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-22 02:23:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-22 02:23:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-22 02:23:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-22 02:23:21,527 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-22 02:23:21,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:21,527 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-22 02:23:21,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-22 02:23:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:21,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:21,529 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 02:23:21,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:23:21,529 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:21,530 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-10-22 02:23:21,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:21,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238610679] [2020-10-22 02:23:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:21,598 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 02:23:21,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238610679] [2020-10-22 02:23:21,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:21,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:21,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [340752050] [2020-10-22 02:23:21,599 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:21,601 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:21,606 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-10-22 02:23:21,606 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:21,709 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:21,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:21,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:21,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:21,711 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-22 02:23:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:21,728 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-22 02:23:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:21,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:21,729 INFO L225 Difference]: With dead ends: 67 [2020-10-22 02:23:21,729 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 02:23:21,729 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 02:23:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 02:23:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 02:23:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 02:23:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 02:23:21,732 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 02:23:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:21,733 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 02:23:21,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:21,733 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 02:23:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:21,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:21,733 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 02:23:21,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:23:21,734 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:21,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:21,734 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-10-22 02:23:21,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:21,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008856576] [2020-10-22 02:23:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:21,774 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 02:23:21,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008856576] [2020-10-22 02:23:21,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:21,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:21,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [81121480] [2020-10-22 02:23:21,776 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:21,778 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:21,781 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 02:23:21,782 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:21,849 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:21,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:21,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:21,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:21,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:21,850 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 02:23:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:21,862 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 02:23:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:21,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:21,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:21,863 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:23:21,863 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:23:21,864 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 02:23:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:23:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:23:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:23:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:23:21,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:23:21,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:21,865 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:23:21,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:23:21,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:23:21,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:23:21,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:23:21 BasicIcfg [2020-10-22 02:23:21,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:23:21,871 INFO L168 Benchmark]: Toolchain (without parser) took 5676.08 ms. Allocated memory was 139.5 MB in the beginning and 289.9 MB in the end (delta: 150.5 MB). Free memory was 101.1 MB in the beginning and 191.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,872 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.77 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 157.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,874 INFO L168 Benchmark]: Boogie Preprocessor took 30.42 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,875 INFO L168 Benchmark]: RCFGBuilder took 476.65 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 130.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,876 INFO L168 Benchmark]: TraceAbstraction took 4401.52 ms. Allocated memory was 202.9 MB in the beginning and 289.9 MB in the end (delta: 87.0 MB). Free memory was 129.4 MB in the beginning and 191.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:21,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.77 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 157.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.42 ms. Allocated memory is still 202.9 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 476.65 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 130.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4401.52 ms. Allocated memory was 202.9 MB in the beginning and 289.9 MB in the end (delta: 87.0 MB). Free memory was 129.4 MB in the beginning and 191.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 24.9 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: 1.9s, 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...