/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:50:28,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:50:28,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:50:28,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:50:28,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:50:28,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:50:28,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:50:28,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:50:28,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:50:28,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:50:28,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:50:28,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:50:28,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:50:28,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:50:28,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:50:28,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:50:28,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:50:28,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:50:28,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:50:28,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:50:28,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:50:28,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:50:28,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:50:28,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:50:28,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 01:50:29,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:50:29,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:50:29,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:50:29,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:50:29,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:50:29,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:50:29,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:50:29,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:50:29,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:50:29,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:50:29,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:50:29,007 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-WP.epf [2020-09-18 01:50:29,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:50:29,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:50:29,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:50:29,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:50:29,034 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:50:29,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:50:29,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:50:29,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:50:29,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:50:29,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:50:29,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:50:29,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:50:29,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:50:29,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:50:29,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:50:29,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:50:29,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:50:29,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:50:29,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:50:29,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:50:29,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:50:29,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:50:29,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:50:29,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:50:29,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:50:29,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:50:29,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:50:29,039 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:50:29,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:50:29,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:50:29,040 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:50:29,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:50:29,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:50:29,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:50:29,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:50:29,522 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:50:29,524 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-09-18 01:50:29,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddad37dc/4484087e4c684a089dc29c30273928b3/FLAGe7f1e8f3c [2020-09-18 01:50:30,270 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:50:30,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-09-18 01:50:30,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddad37dc/4484087e4c684a089dc29c30273928b3/FLAGe7f1e8f3c [2020-09-18 01:50:30,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddad37dc/4484087e4c684a089dc29c30273928b3 [2020-09-18 01:50:30,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:50:30,596 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:50:30,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:50:30,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:50:30,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:50:30,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:50:30" (1/1) ... [2020-09-18 01:50:30,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cc05ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:30, skipping insertion in model container [2020-09-18 01:50:30,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:50:30" (1/1) ... [2020-09-18 01:50:30,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:50:30,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:50:31,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:50:31,264 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:50:31,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:50:31,410 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:50:31,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31 WrapperNode [2020-09-18 01:50:31,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:50:31,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:50:31,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:50:31,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:50:31,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:50:31,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:50:31,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:50:31,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:50:31,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (1/1) ... [2020-09-18 01:50:31,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:50:31,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:50:31,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:50:31,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:50:31,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (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 [2020-09-18 01:50:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:50:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:50:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:50:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:50:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:50:31,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:50:31,605 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:50:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:50:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:50:31,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:50:31,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:50:31,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:50:31,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:50:31,610 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:50:31,977 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:50:31,977 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:50:31,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:50:31 BoogieIcfgContainer [2020-09-18 01:50:31,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:50:31,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:50:31,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:50:31,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:50:31,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:50:30" (1/3) ... [2020-09-18 01:50:31,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7534c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:50:31, skipping insertion in model container [2020-09-18 01:50:31,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:31" (2/3) ... [2020-09-18 01:50:31,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7534c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:50:31, skipping insertion in model container [2020-09-18 01:50:31,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:50:31" (3/3) ... [2020-09-18 01:50:31,995 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2020-09-18 01:50:32,008 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:50:32,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:50:32,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:50:32,019 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:50:32,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,083 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:32,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 01:50:32,173 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:50:32,173 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:50:32,173 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:50:32,173 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:50:32,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:50:32,174 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:50:32,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:50:32,174 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:50:32,193 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:32,196 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:32,249 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 01:50:32,249 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:50:32,256 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-18 01:50:32,259 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:32,286 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 01:50:32,286 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:50:32,287 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-18 01:50:32,293 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-18 01:50:32,294 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:50:33,847 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-09-18 01:50:33,848 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-09-18 01:50:33,853 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-18 01:50:33,877 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-18 01:50:33,880 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-18 01:50:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 01:50:33,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:33,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:33,892 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:33,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:33,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-09-18 01:50:33,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:33,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58989900] [2020-09-18 01:50:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:34,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58989900] [2020-09-18 01:50:34,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:34,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:50:34,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1967406645] [2020-09-18 01:50:34,191 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:34,195 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:34,213 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 01:50:34,213 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:34,215 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:34,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:50:34,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:50:34,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:50:34,238 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-18 01:50:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:34,275 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-18 01:50:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:50:34,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 01:50:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:34,299 INFO L225 Difference]: With dead ends: 214 [2020-09-18 01:50:34,299 INFO L226 Difference]: Without dead ends: 166 [2020-09-18 01:50:34,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:50:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-18 01:50:34,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-18 01:50:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-18 01:50:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-18 01:50:34,375 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-18 01:50:34,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:34,376 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-18 01:50:34,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:50:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-18 01:50:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 01:50:34,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:34,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:34,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:50:34,379 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:34,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-09-18 01:50:34,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:34,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697124072] [2020-09-18 01:50:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:34,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697124072] [2020-09-18 01:50:34,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:34,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:50:34,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [795443228] [2020-09-18 01:50:34,517 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:34,518 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:34,520 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-18 01:50:34,520 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:34,540 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:34,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:34,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:34,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:34,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:34,543 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-18 01:50:34,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:34,576 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-09-18 01:50:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:34,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 01:50:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:34,579 INFO L225 Difference]: With dead ends: 202 [2020-09-18 01:50:34,579 INFO L226 Difference]: Without dead ends: 130 [2020-09-18 01:50:34,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-18 01:50:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-09-18 01:50:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-18 01:50:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-09-18 01:50:34,596 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-09-18 01:50:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:34,597 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-09-18 01:50:34,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-09-18 01:50:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 01:50:34,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:34,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:34,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:50:34,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:34,599 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-09-18 01:50:34,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:34,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115510355] [2020-09-18 01:50:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:34,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115510355] [2020-09-18 01:50:34,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:34,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:50:34,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2023840442] [2020-09-18 01:50:34,726 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:34,729 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:34,731 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-09-18 01:50:34,731 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:34,789 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:50:34,821 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:50:34,831 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1553#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-18 01:50:34,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:50:34,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:34,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:50:34,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:34,833 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-09-18 01:50:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:34,904 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-09-18 01:50:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:50:34,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-18 01:50:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:34,906 INFO L225 Difference]: With dead ends: 121 [2020-09-18 01:50:34,907 INFO L226 Difference]: Without dead ends: 85 [2020-09-18 01:50:34,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:50:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-18 01:50:34,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-18 01:50:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-18 01:50:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-09-18 01:50:34,915 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-09-18 01:50:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:34,916 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-09-18 01:50:34,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:50:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-09-18 01:50:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:50:34,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:34,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:34,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:50:34,918 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:34,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-09-18 01:50:34,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:34,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424983683] [2020-09-18 01:50:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:35,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424983683] [2020-09-18 01:50:35,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:35,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 01:50:35,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1078752697] [2020-09-18 01:50:35,015 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:35,017 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:35,019 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-09-18 01:50:35,020 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:35,060 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1855#(<= ~__unbuffered_cnt~0 0)] [2020-09-18 01:50:35,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-18 01:50:35,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:35,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-18 01:50:35,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:50:35,061 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 7 states. [2020-09-18 01:50:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:35,118 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-09-18 01:50:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:50:35,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-09-18 01:50:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:35,119 INFO L225 Difference]: With dead ends: 80 [2020-09-18 01:50:35,119 INFO L226 Difference]: Without dead ends: 72 [2020-09-18 01:50:35,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-18 01:50:35,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-18 01:50:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-18 01:50:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-18 01:50:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-09-18 01:50:35,126 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-09-18 01:50:35,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:35,127 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-09-18 01:50:35,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-18 01:50:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-09-18 01:50:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 01:50:35,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:35,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:35,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:50:35,129 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-09-18 01:50:35,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:35,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544329274] [2020-09-18 01:50:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:35,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544329274] [2020-09-18 01:50:35,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:35,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:50:35,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [846882156] [2020-09-18 01:50:35,195 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:35,196 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:35,215 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-09-18 01:50:35,216 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:35,249 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:35,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:35,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:35,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:35,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:35,251 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-09-18 01:50:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:35,268 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-09-18 01:50:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:35,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-18 01:50:35,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:35,270 INFO L225 Difference]: With dead ends: 97 [2020-09-18 01:50:35,270 INFO L226 Difference]: Without dead ends: 48 [2020-09-18 01:50:35,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-18 01:50:35,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-18 01:50:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-18 01:50:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-18 01:50:35,274 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-18 01:50:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:35,275 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-18 01:50:35,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-18 01:50:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 01:50:35,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:35,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:35,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 01:50:35,277 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:35,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-09-18 01:50:35,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:35,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059117946] [2020-09-18 01:50:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:35,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059117946] [2020-09-18 01:50:35,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:35,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:50:35,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2056791571] [2020-09-18 01:50:35,358 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:35,360 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:35,366 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 64 transitions. [2020-09-18 01:50:35,366 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:35,471 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:35,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:35,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:35,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:35,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:35,473 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-18 01:50:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:35,486 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-18 01:50:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:35,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-18 01:50:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:35,487 INFO L225 Difference]: With dead ends: 47 [2020-09-18 01:50:35,487 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:50:35,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:50:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:50:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:50:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:50:35,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-18 01:50:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:35,489 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:50:35,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:50:35,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:50:35,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 01:50:35,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:50:35 BasicIcfg [2020-09-18 01:50:35,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:50:35,500 INFO L168 Benchmark]: Toolchain (without parser) took 4907.10 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,501 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.79 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 160.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.40 ms. Allocated memory is still 202.9 MB. Free memory was 160.7 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,504 INFO L168 Benchmark]: Boogie Preprocessor took 31.32 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,505 INFO L168 Benchmark]: RCFGBuilder took 473.87 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 134.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,506 INFO L168 Benchmark]: TraceAbstraction took 3509.72 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 134.0 MB in the beginning and 174.1 MB in the end (delta: -40.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:35,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.79 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 160.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.40 ms. Allocated memory is still 202.9 MB. Free memory was 160.7 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.32 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.87 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 134.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3509.72 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 134.0 MB in the beginning and 174.1 MB in the end (delta: -40.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 107 SDtfs, 117 SDslu, 151 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2154 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...