/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:05:13,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:05:13,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:05:13,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:05:13,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:05:13,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:05:13,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:05:13,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:05:13,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:05:13,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:05:13,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:05:13,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:05:13,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:05:13,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:05:13,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:05:13,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:05:13,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:05:13,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:05:14,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:05:14,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:05:14,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:05:14,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:05:14,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:05:14,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:05:14,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:05:14,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:05:14,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:05:14,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:05:14,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:05:14,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:05:14,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:05:14,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:05:14,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:05:14,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:05:14,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:05:14,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:05:14,019 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 [2020-10-06 01:05:14,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:05:14,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:05:14,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:05:14,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:05:14,070 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:05:14,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:05:14,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:05:14,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:05:14,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:05:14,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:05:14,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:05:14,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:05:14,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:05:14,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:05:14,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:05:14,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:05:14,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:05:14,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:05:14,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:05:14,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:05:14,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:05:14,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:05:14,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:05:14,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:05:14,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:05:14,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:05:14,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:05:14,079 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:05:14,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:05:14,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:05:14,079 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:05:14,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:05:14,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:05:14,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:05:14,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:05:14,418 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:05:14,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-06 01:05:14,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4027e9c6f/55619e45b5774b4b8a935ae704bc33c8/FLAG39ffa0cda [2020-10-06 01:05:15,007 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:05:15,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-06 01:05:15,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4027e9c6f/55619e45b5774b4b8a935ae704bc33c8/FLAG39ffa0cda [2020-10-06 01:05:15,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4027e9c6f/55619e45b5774b4b8a935ae704bc33c8 [2020-10-06 01:05:15,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:05:15,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:05:15,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:05:15,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:05:15,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:05:15,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:05:15" (1/1) ... [2020-10-06 01:05:15,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dbb5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:15, skipping insertion in model container [2020-10-06 01:05:15,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:05:15" (1/1) ... [2020-10-06 01:05:15,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:05:15,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:05:15,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:05:15,896 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:05:15,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:05:16,021 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:05:16,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16 WrapperNode [2020-10-06 01:05:16,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:05:16,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:05:16,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:05:16,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:05:16,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:05:16,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:05:16,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:05:16,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:05:16,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:05:16,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:05:16,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:05:16,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:05:16,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (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 [2020-10-06 01:05:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:05:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:05:16,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:05:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:05:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:05:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:05:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:05:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:05:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:05:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:05:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 01:05:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 01:05:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:05:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:05:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:05:16,185 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:05:16,587 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:05:16,588 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:05:16,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:05:16 BoogieIcfgContainer [2020-10-06 01:05:16,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:05:16,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:05:16,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:05:16,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:05:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:05:15" (1/3) ... [2020-10-06 01:05:16,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2a8465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:05:16, skipping insertion in model container [2020-10-06 01:05:16,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (2/3) ... [2020-10-06 01:05:16,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2a8465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:05:16, skipping insertion in model container [2020-10-06 01:05:16,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:05:16" (3/3) ... [2020-10-06 01:05:16,600 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-06 01:05:16,612 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:05:16,613 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:05:16,622 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:05:16,623 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:05:16,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,669 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,669 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,670 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,670 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,686 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,686 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:16,707 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:05:16,731 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:05:16,731 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:05:16,731 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:05:16,731 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:05:16,731 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:05:16,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:05:16,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:05:16,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:05:16,748 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:16,751 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:16,804 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-06 01:05:16,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:05:16,811 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:05:16,815 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:16,840 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-06 01:05:16,840 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:05:16,841 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:05:16,844 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-06 01:05:16,846 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:05:18,284 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-06 01:05:18,473 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-10-06 01:05:18,473 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-10-06 01:05:18,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-06 01:05:18,525 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-06 01:05:18,528 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-06 01:05:18,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:05:18,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:18,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:18,540 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:18,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:18,550 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-06 01:05:18,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:18,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530711454] [2020-10-06 01:05:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:18,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530711454] [2020-10-06 01:05:18,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:18,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:05:18,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1422057172] [2020-10-06 01:05:18,850 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:18,853 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:18,867 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 01:05:18,867 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:18,872 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:18,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:05:18,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:18,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:05:18,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:18,890 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-06 01:05:18,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:18,939 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-06 01:05:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:05:18,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 01:05:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:18,965 INFO L225 Difference]: With dead ends: 670 [2020-10-06 01:05:18,965 INFO L226 Difference]: Without dead ends: 526 [2020-10-06 01:05:18,969 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 [2020-10-06 01:05:19,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-06 01:05:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-06 01:05:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-06 01:05:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-06 01:05:19,102 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-06 01:05:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,105 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-06 01:05:19,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:05:19,105 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-06 01:05:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:05:19,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:05:19,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-10-06 01:05:19,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478836171] [2020-10-06 01:05:19,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478836171] [2020-10-06 01:05:19,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:19,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1181749653] [2020-10-06 01:05:19,191 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,192 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,195 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-06 01:05:19,195 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,255 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:19,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:19,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:19,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:19,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:19,258 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-06 01:05:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:19,308 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-10-06 01:05:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:05:19,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:05:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:19,314 INFO L225 Difference]: With dead ends: 724 [2020-10-06 01:05:19,315 INFO L226 Difference]: Without dead ends: 412 [2020-10-06 01:05:19,316 INFO L675 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 [2020-10-06 01:05:19,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-06 01:05:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-10-06 01:05:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-06 01:05:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-10-06 01:05:19,337 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-10-06 01:05:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,337 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-10-06 01:05:19,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-10-06 01:05:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:05:19,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:05:19,340 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-10-06 01:05:19,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435462608] [2020-10-06 01:05:19,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435462608] [2020-10-06 01:05:19,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:05:19,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1250935614] [2020-10-06 01:05:19,398 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,400 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,402 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-10-06 01:05:19,402 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,419 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:19,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:05:19,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:19,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:05:19,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:19,420 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-10-06 01:05:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:19,433 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-10-06 01:05:19,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:05:19,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 01:05:19,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:19,437 INFO L225 Difference]: With dead ends: 394 [2020-10-06 01:05:19,437 INFO L226 Difference]: Without dead ends: 394 [2020-10-06 01:05:19,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-06 01:05:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-06 01:05:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-06 01:05:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-10-06 01:05:19,453 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-10-06 01:05:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,454 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-10-06 01:05:19,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:05:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-10-06 01:05:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:05:19,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:05:19,463 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-10-06 01:05:19,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72525386] [2020-10-06 01:05:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72525386] [2020-10-06 01:05:19,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:05:19,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [352574224] [2020-10-06 01:05:19,557 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,558 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,562 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-10-06 01:05:19,562 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,589 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:19,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:19,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:19,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:19,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:19,594 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-10-06 01:05:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:19,626 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-10-06 01:05:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:05:19,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:05:19,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:19,630 INFO L225 Difference]: With dead ends: 652 [2020-10-06 01:05:19,630 INFO L226 Difference]: Without dead ends: 340 [2020-10-06 01:05:19,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-06 01:05:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-10-06 01:05:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-06 01:05:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-10-06 01:05:19,643 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-10-06 01:05:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,643 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-10-06 01:05:19,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-10-06 01:05:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:05:19,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:05:19,645 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-10-06 01:05:19,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733874306] [2020-10-06 01:05:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733874306] [2020-10-06 01:05:19,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:19,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1855703340] [2020-10-06 01:05:19,684 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,686 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,689 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-10-06 01:05:19,690 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,735 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:19,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:19,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:19,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:19,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:19,736 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-10-06 01:05:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:19,758 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-10-06 01:05:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:05:19,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:05:19,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:19,760 INFO L225 Difference]: With dead ends: 406 [2020-10-06 01:05:19,760 INFO L226 Difference]: Without dead ends: 226 [2020-10-06 01:05:19,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:19,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-06 01:05:19,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-06 01:05:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-06 01:05:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-10-06 01:05:19,768 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-10-06 01:05:19,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,769 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-10-06 01:05:19,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-10-06 01:05:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:05:19,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:05:19,770 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-10-06 01:05:19,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560294047] [2020-10-06 01:05:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560294047] [2020-10-06 01:05:19,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:19,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [950890298] [2020-10-06 01:05:19,840 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,842 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,850 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-06 01:05:19,850 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,869 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,896 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,928 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,938 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,951 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,964 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,973 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:19,989 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,006 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-06 01:05:20,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:05:20,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:05:20,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:20,008 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-10-06 01:05:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,099 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-10-06 01:05:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:05:20,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 01:05:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,101 INFO L225 Difference]: With dead ends: 243 [2020-10-06 01:05:20,101 INFO L226 Difference]: Without dead ends: 162 [2020-10-06 01:05:20,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:05:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-06 01:05:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-06 01:05:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-06 01:05:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-10-06 01:05:20,108 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-10-06 01:05:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,108 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-10-06 01:05:20,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:05:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-10-06 01:05:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:05:20,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:05:20,110 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,110 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-06 01:05:20,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697058509] [2020-10-06 01:05:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697058509] [2020-10-06 01:05:20,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:05:20,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1887100016] [2020-10-06 01:05:20,217 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,219 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,225 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-10-06 01:05:20,225 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,235 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,259 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,281 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,332 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 01:05:20,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 01:05:20,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-06 01:05:20,333 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-10-06 01:05:20,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,392 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-10-06 01:05:20,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:05:20,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-06 01:05:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,394 INFO L225 Difference]: With dead ends: 158 [2020-10-06 01:05:20,394 INFO L226 Difference]: Without dead ends: 125 [2020-10-06 01:05:20,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:05:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-06 01:05:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-06 01:05:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-06 01:05:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-06 01:05:20,399 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-10-06 01:05:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,399 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-06 01:05:20,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 01:05:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-06 01:05:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-06 01:05:20,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:05:20,401 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-10-06 01:05:20,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077321900] [2020-10-06 01:05:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077321900] [2020-10-06 01:05:20,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 01:05:20,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1118169515] [2020-10-06 01:05:20,479 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,481 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,488 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-10-06 01:05:20,488 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,495 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,533 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:05:20,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:05:20,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:05:20,535 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-06 01:05:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,601 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-06 01:05:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-06 01:05:20,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-06 01:05:20,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,603 INFO L225 Difference]: With dead ends: 120 [2020-10-06 01:05:20,603 INFO L226 Difference]: Without dead ends: 71 [2020-10-06 01:05:20,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:05:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-06 01:05:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-06 01:05:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-06 01:05:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-06 01:05:20,606 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-06 01:05:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,606 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-06 01:05:20,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:05:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-06 01:05:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-06 01:05:20,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:05:20,608 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-06 01:05:20,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762386381] [2020-10-06 01:05:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762386381] [2020-10-06 01:05:20,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:05:20,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [600009448] [2020-10-06 01:05:20,645 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,648 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,655 INFO L258 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-10-06 01:05:20,656 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,680 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:20,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:20,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:20,681 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-06 01:05:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,693 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-06 01:05:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:05:20,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-06 01:05:20,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,694 INFO L225 Difference]: With dead ends: 70 [2020-10-06 01:05:20,694 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:05:20,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:20,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:05:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:05:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:05:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:05:20,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-06 01:05:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,695 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:05:20,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:20,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:05:20,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:05:20,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:05:20,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:05:20 BasicIcfg [2020-10-06 01:05:20,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:05:20,702 INFO L168 Benchmark]: Toolchain (without parser) took 5376.70 ms. Allocated memory was 140.5 MB in the beginning and 282.6 MB in the end (delta: 142.1 MB). Free memory was 101.7 MB in the beginning and 136.8 MB in the end (delta: -35.2 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,703 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 159.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.66 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,706 INFO L168 Benchmark]: Boogie Preprocessor took 30.77 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,706 INFO L168 Benchmark]: RCFGBuilder took 484.65 ms. Allocated memory is still 203.4 MB. Free memory was 155.6 MB in the beginning and 131.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,707 INFO L168 Benchmark]: TraceAbstraction took 4108.07 ms. Allocated memory was 203.4 MB in the beginning and 282.6 MB in the end (delta: 79.2 MB). Free memory was 131.2 MB in the beginning and 136.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:20,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 159.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.66 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.77 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 484.65 ms. Allocated memory is still 203.4 MB. Free memory was 155.6 MB in the beginning and 131.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4108.07 ms. Allocated memory was 203.4 MB in the beginning and 282.6 MB in the end (delta: 79.2 MB). Free memory was 131.2 MB in the beginning and 136.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 198 SDtfs, 178 SDslu, 295 SDs, 0 SdLazy, 161 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 92 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...