/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:46:22,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:46:22,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:46:23,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:46:23,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:46:23,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:46:23,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:46:23,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:46:23,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:46:23,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:46:23,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:46:23,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:46:23,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:46:23,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:46:23,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:46:23,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:46:23,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:46:23,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:46:23,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:46:23,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:46:23,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:46:23,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:46:23,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:46:23,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:46:23,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:46:23,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:46:23,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:46:23,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:46:23,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:46:23,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:46:23,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:46:23,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:46:23,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:46:23,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:46:23,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:46:23,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:46:23,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:46:23,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:46:23,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:46:23,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:46:23,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:46:23,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:46:23,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:46:23,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:46:23,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:46:23,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:46:23,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:46:23,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:46:23,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:46:23,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:46:23,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:46:23,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:46:23,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:46:23,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:46:23,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:46:23,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:46:23,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:46:23,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:46:23,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:46:23,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:46:23,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:46:23,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:46:23,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:46:23,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:46:23,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:46:23,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:46:23,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:46:23,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:46:23,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:46:23,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:46:23,474 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:46:23,474 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-16 11:46:23,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b75cf4010/fc22b29f930e47ce8ed2e5bee84b68cc/FLAG56831bf8c [2020-10-16 11:46:24,094 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:46:24,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-16 11:46:24,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b75cf4010/fc22b29f930e47ce8ed2e5bee84b68cc/FLAG56831bf8c [2020-10-16 11:46:24,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b75cf4010/fc22b29f930e47ce8ed2e5bee84b68cc [2020-10-16 11:46:24,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:46:24,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:46:24,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:24,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:46:24,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:46:24,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:24" (1/1) ... [2020-10-16 11:46:24,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcf65fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:24, skipping insertion in model container [2020-10-16 11:46:24,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:24" (1/1) ... [2020-10-16 11:46:24,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:46:24,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:46:24,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:24,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:46:25,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:25,122 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:46:25,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25 WrapperNode [2020-10-16 11:46:25,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:25,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:25,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:46:25,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:46:25,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:25,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:46:25,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:46:25,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:46:25,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... [2020-10-16 11:46:25,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:46:25,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:46:25,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:46:25,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:46:25,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:46:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 11:46:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 11:46:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:46:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:46:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:46:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:46:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:46:25,270 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:46:25,617 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:46:25,618 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 11:46:25,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:25 BoogieIcfgContainer [2020-10-16 11:46:25,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:46:25,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:46:25,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:46:25,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:46:25,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:46:24" (1/3) ... [2020-10-16 11:46:25,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f79f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:25, skipping insertion in model container [2020-10-16 11:46:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:25" (2/3) ... [2020-10-16 11:46:25,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f79f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:25, skipping insertion in model container [2020-10-16 11:46:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:25" (3/3) ... [2020-10-16 11:46:25,629 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-10-16 11:46:25,642 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:46:25,642 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:46:25,650 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:46:25,651 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:46:25,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,690 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:25,704 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:46:25,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:25,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:25,723 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:25,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:25,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:25,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:25,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:25,724 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:25,736 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:25,737 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-10-16 11:46:25,740 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 82 transitions, 169 flow [2020-10-16 11:46:25,743 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-10-16 11:46:25,788 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-10-16 11:46:25,789 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:46:25,796 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-10-16 11:46:25,800 INFO L117 LiptonReduction]: Number of co-enabled transitions 2400 [2020-10-16 11:46:26,420 INFO L132 LiptonReduction]: Checked pairs total: 4373 [2020-10-16 11:46:26,421 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 11:46:26,428 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-10-16 11:46:26,448 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-10-16 11:46:26,451 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-10-16 11:46:26,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:46:26,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:26,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:26,461 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:26,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-10-16 11:46:26,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:26,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567150778] [2020-10-16 11:46:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:26,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567150778] [2020-10-16 11:46:26,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:26,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:26,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56148938] [2020-10-16 11:46:26,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:46:26,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:26,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:46:26,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:46:26,678 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-10-16 11:46:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:26,703 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-10-16 11:46:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:46:26,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-16 11:46:26,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:26,722 INFO L225 Difference]: With dead ends: 198 [2020-10-16 11:46:26,722 INFO L226 Difference]: Without dead ends: 198 [2020-10-16 11:46:26,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:46:26,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-16 11:46:26,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-16 11:46:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-16 11:46:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-10-16 11:46:26,790 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-10-16 11:46:26,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:26,791 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-10-16 11:46:26,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:46:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-10-16 11:46:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:46:26,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:26,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:26,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:46:26,794 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:26,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-10-16 11:46:26,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:26,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829533686] [2020-10-16 11:46:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:26,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829533686] [2020-10-16 11:46:26,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:26,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:26,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875992805] [2020-10-16 11:46:26,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:26,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:26,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:26,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:26,867 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-10-16 11:46:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:26,913 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-10-16 11:46:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:26,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:46:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:26,918 INFO L225 Difference]: With dead ends: 362 [2020-10-16 11:46:26,918 INFO L226 Difference]: Without dead ends: 362 [2020-10-16 11:46:26,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-10-16 11:46:26,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-10-16 11:46:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-16 11:46:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-10-16 11:46:26,947 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-10-16 11:46:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:26,947 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-10-16 11:46:26,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-10-16 11:46:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:46:26,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:26,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:26,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:46:26,949 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:26,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:26,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-10-16 11:46:26,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:26,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072905268] [2020-10-16 11:46:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072905268] [2020-10-16 11:46:27,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:27,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342907164] [2020-10-16 11:46:27,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,015 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-10-16 11:46:27,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,033 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-10-16 11:46:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:46:27,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,037 INFO L225 Difference]: With dead ends: 348 [2020-10-16 11:46:27,037 INFO L226 Difference]: Without dead ends: 348 [2020-10-16 11:46:27,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-16 11:46:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-10-16 11:46:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 11:46:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-10-16 11:46:27,056 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-10-16 11:46:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,056 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-10-16 11:46:27,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-10-16 11:46:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 11:46:27,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:46:27,060 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-10-16 11:46:27,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851935787] [2020-10-16 11:46:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851935787] [2020-10-16 11:46:27,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358547527] [2020-10-16 11:46:27,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,100 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-10-16 11:46:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,142 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-10-16 11:46:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 11:46:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,145 INFO L225 Difference]: With dead ends: 220 [2020-10-16 11:46:27,145 INFO L226 Difference]: Without dead ends: 220 [2020-10-16 11:46:27,145 INFO L677 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 [2020-10-16 11:46:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-16 11:46:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-16 11:46:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-16 11:46:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-10-16 11:46:27,158 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-10-16 11:46:27,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,158 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-10-16 11:46:27,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-10-16 11:46:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 11:46:27,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:46:27,161 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,162 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-10-16 11:46:27,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116661651] [2020-10-16 11:46:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116661651] [2020-10-16 11:46:27,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85606448] [2020-10-16 11:46:27,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,210 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-10-16 11:46:27,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,254 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-10-16 11:46:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 11:46:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,257 INFO L225 Difference]: With dead ends: 240 [2020-10-16 11:46:27,257 INFO L226 Difference]: Without dead ends: 240 [2020-10-16 11:46:27,258 INFO L677 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 [2020-10-16 11:46:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-16 11:46:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-10-16 11:46:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-16 11:46:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-10-16 11:46:27,270 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-10-16 11:46:27,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,270 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-10-16 11:46:27,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,271 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-10-16 11:46:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 11:46:27,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:46:27,274 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,275 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-10-16 11:46:27,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676513152] [2020-10-16 11:46:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676513152] [2020-10-16 11:46:27,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555215149] [2020-10-16 11:46:27,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,310 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-10-16 11:46:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,368 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-10-16 11:46:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 11:46:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,371 INFO L225 Difference]: With dead ends: 228 [2020-10-16 11:46:27,372 INFO L226 Difference]: Without dead ends: 228 [2020-10-16 11:46:27,372 INFO L677 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 [2020-10-16 11:46:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-16 11:46:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-10-16 11:46:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-16 11:46:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-10-16 11:46:27,384 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-10-16 11:46:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,385 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-10-16 11:46:27,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-10-16 11:46:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 11:46:27,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:27,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:27,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:46:27,391 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:27,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:27,391 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-10-16 11:46:27,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:27,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387441077] [2020-10-16 11:46:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:27,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387441077] [2020-10-16 11:46:27,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:27,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:27,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813259976] [2020-10-16 11:46:27,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:27,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:27,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:27,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:27,472 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-10-16 11:46:27,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:27,513 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-10-16 11:46:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:27,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 11:46:27,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:27,514 INFO L225 Difference]: With dead ends: 194 [2020-10-16 11:46:27,514 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:46:27,515 INFO L677 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 [2020-10-16 11:46:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:46:27,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:46:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:46:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:46:27,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-16 11:46:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:27,537 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:46:27,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:46:27,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:46:27,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:46:27,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:46:27 BasicIcfg [2020-10-16 11:46:27,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:46:27,544 INFO L168 Benchmark]: Toolchain (without parser) took 3166.30 ms. Allocated memory was 140.0 MB in the beginning and 249.0 MB in the end (delta: 109.1 MB). Free memory was 100.7 MB in the beginning and 216.4 MB in the end (delta: -115.7 MB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,545 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.78 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 162.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.83 ms. Allocated memory is still 201.3 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,548 INFO L168 Benchmark]: Boogie Preprocessor took 30.30 ms. Allocated memory is still 201.3 MB. Free memory was 159.5 MB in the beginning and 158.6 MB in the end (delta: 960.7 kB). Peak memory consumption was 960.7 kB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,549 INFO L168 Benchmark]: RCFGBuilder took 416.45 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 137.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,550 INFO L168 Benchmark]: TraceAbstraction took 1920.41 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 136.2 MB in the beginning and 216.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:46:27,554 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 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.78 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 162.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.83 ms. Allocated memory is still 201.3 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.30 ms. Allocated memory is still 201.3 MB. Free memory was 159.5 MB in the beginning and 158.6 MB in the end (delta: 960.7 kB). Peak memory consumption was 960.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 416.45 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 137.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1920.41 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 136.2 MB in the beginning and 216.4 MB in the end (delta: -80.2 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1006 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 148 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 62 PlacesBefore, 35 PlacesAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 43 TotalNumberOfCompositions, 4373 MoverChecksTotal - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 373 SDtfs, 152 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, 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, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...