/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/15_dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:55:54,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:55:54,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:55:54,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:55:54,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:55:54,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:55:54,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:55:54,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:55:54,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:55:54,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:55:54,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:55:54,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:55:54,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:55:54,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:55:54,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:55:54,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:55:54,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:55:54,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:55:54,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:55:54,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:55:54,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:55:54,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:55:54,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:55:54,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:55:54,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 10:55:54,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:55:54,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:55:54,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:55:54,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:55:54,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:55:54,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:55:54,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:55:54,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:55:54,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:55:54,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:55:54,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:55:54,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:55:54,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:55:54,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:55:54,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:55:54,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:55:54,722 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:55:54,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:55:54,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:55:54,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:55:54,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:55:54,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:55:54,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:55:54,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:55:54,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:55:54,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:55:54,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:55:54,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:55:54,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:55:54,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:55:54,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:55:54,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:55:54,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:55:54,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:55:54,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:55:54,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:55:54,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:55:54,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:55:54,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:55:54,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:55:54,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:55:54,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:55:55,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:55:55,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:55:55,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:55:55,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:55:55,076 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:55:55,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/15_dekker.i [2020-10-16 10:55:55,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e10cdf77/5b7ffe2f2ee4497d95d94e246f9110b7/FLAGf5bd85e40 [2020-10-16 10:55:55,639 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:55:55,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/15_dekker.i [2020-10-16 10:55:55,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e10cdf77/5b7ffe2f2ee4497d95d94e246f9110b7/FLAGf5bd85e40 [2020-10-16 10:55:55,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e10cdf77/5b7ffe2f2ee4497d95d94e246f9110b7 [2020-10-16 10:55:56,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:55:56,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:55:56,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:55:56,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:55:56,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:55:56,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:55:55" (1/1) ... [2020-10-16 10:55:56,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341c45e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56, skipping insertion in model container [2020-10-16 10:55:56,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:55:55" (1/1) ... [2020-10-16 10:55:56,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:55:56,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:55:56,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:55:56,496 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:55:56,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:55:56,655 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:55:56,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56 WrapperNode [2020-10-16 10:55:56,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:55:56,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:55:56,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:55:56,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:55:56,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:55:56,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:55:56,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:55:56,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:55:56,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (1/1) ... [2020-10-16 10:55:56,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:55:56,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:55:56,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:55:56,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:55:56,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (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 10:55:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 10:55:56,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 10:55:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:55:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:55:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:55:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:55:56,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:55:56,824 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 10:55:57,169 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:55:57,169 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 10:55:57,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:55:57 BoogieIcfgContainer [2020-10-16 10:55:57,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:55:57,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:55:57,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:55:57,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:55:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:55:55" (1/3) ... [2020-10-16 10:55:57,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220067b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:55:57, skipping insertion in model container [2020-10-16 10:55:57,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:55:56" (2/3) ... [2020-10-16 10:55:57,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220067b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:55:57, skipping insertion in model container [2020-10-16 10:55:57,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:55:57" (3/3) ... [2020-10-16 10:55:57,181 INFO L111 eAbstractionObserver]: Analyzing ICFG 15_dekker.i [2020-10-16 10:55:57,193 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:55:57,193 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:55:57,201 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 10:55:57,202 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:55:57,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,242 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:55:57,248 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 10:55:57,259 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 10:55:57,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:55:57,279 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:55:57,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:55:57,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:55:57,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:55:57,280 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:55:57,280 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:55:57,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:55:57,294 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:55:57,297 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions, 135 flow [2020-10-16 10:55:57,300 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 65 transitions, 135 flow [2020-10-16 10:55:57,302 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions, 135 flow [2020-10-16 10:55:57,340 INFO L129 PetriNetUnfolder]: 12/64 cut-off events. [2020-10-16 10:55:57,340 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 10:55:57,347 INFO L80 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 12/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-16 10:55:57,350 INFO L117 LiptonReduction]: Number of co-enabled transitions 1302 [2020-10-16 10:55:58,264 INFO L132 LiptonReduction]: Checked pairs total: 2818 [2020-10-16 10:55:58,264 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 10:55:58,272 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 33 transitions, 71 flow [2020-10-16 10:55:58,291 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 123 states. [2020-10-16 10:55:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-10-16 10:55:58,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 10:55:58,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:55:58,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 10:55:58,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:55:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:55:58,309 INFO L82 PathProgramCache]: Analyzing trace with hash 265919371, now seen corresponding path program 1 times [2020-10-16 10:55:58,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:55:58,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815454876] [2020-10-16 10:55:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:55:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:55:58,496 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 10:55:58,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815454876] [2020-10-16 10:55:58,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:55:58,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:55:58,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938231175] [2020-10-16 10:55:58,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 10:55:58,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:55:58,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 10:55:58,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 10:55:58,522 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2020-10-16 10:55:58,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:55:58,548 INFO L93 Difference]: Finished difference Result 123 states and 288 transitions. [2020-10-16 10:55:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 10:55:58,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-10-16 10:55:58,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:55:58,565 INFO L225 Difference]: With dead ends: 123 [2020-10-16 10:55:58,566 INFO L226 Difference]: Without dead ends: 114 [2020-10-16 10:55:58,567 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 10:55:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-16 10:55:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-16 10:55:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-16 10:55:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 270 transitions. [2020-10-16 10:55:58,624 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 270 transitions. Word has length 5 [2020-10-16 10:55:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:55:58,625 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 270 transitions. [2020-10-16 10:55:58,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 10:55:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 270 transitions. [2020-10-16 10:55:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 10:55:58,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:55:58,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 10:55:58,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:55:58,628 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:55:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:55:58,628 INFO L82 PathProgramCache]: Analyzing trace with hash -346472462, now seen corresponding path program 1 times [2020-10-16 10:55:58,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:55:58,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267322646] [2020-10-16 10:55:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:55:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:55:58,694 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 10:55:58,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267322646] [2020-10-16 10:55:58,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:55:58,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:55:58,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426870726] [2020-10-16 10:55:58,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:55:58,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:55:58,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:55:58,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:55:58,698 INFO L87 Difference]: Start difference. First operand 114 states and 270 transitions. Second operand 3 states. [2020-10-16 10:55:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:55:58,733 INFO L93 Difference]: Finished difference Result 119 states and 267 transitions. [2020-10-16 10:55:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:55:58,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 10:55:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:55:58,736 INFO L225 Difference]: With dead ends: 119 [2020-10-16 10:55:58,736 INFO L226 Difference]: Without dead ends: 98 [2020-10-16 10:55:58,737 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 10:55:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-16 10:55:58,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2020-10-16 10:55:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-16 10:55:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 213 transitions. [2020-10-16 10:55:58,752 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 213 transitions. Word has length 6 [2020-10-16 10:55:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:55:58,753 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 213 transitions. [2020-10-16 10:55:58,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:55:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 213 transitions. [2020-10-16 10:55:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 10:55:58,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:55:58,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 10:55:58,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:55:58,755 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:55:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:55:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash -347203723, now seen corresponding path program 1 times [2020-10-16 10:55:58,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:55:58,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136075010] [2020-10-16 10:55:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:55:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:55:58,790 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 10:55:58,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136075010] [2020-10-16 10:55:58,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:55:58,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:55:58,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454758668] [2020-10-16 10:55:58,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:55:58,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:55:58,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:55:58,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:55:58,793 INFO L87 Difference]: Start difference. First operand 92 states and 213 transitions. Second operand 3 states. [2020-10-16 10:55:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:55:58,812 INFO L93 Difference]: Finished difference Result 87 states and 195 transitions. [2020-10-16 10:55:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:55:58,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 10:55:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:55:58,814 INFO L225 Difference]: With dead ends: 87 [2020-10-16 10:55:58,815 INFO L226 Difference]: Without dead ends: 66 [2020-10-16 10:55:58,815 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 10:55:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-16 10:55:58,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-16 10:55:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-16 10:55:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 148 transitions. [2020-10-16 10:55:58,823 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 148 transitions. Word has length 6 [2020-10-16 10:55:58,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:55:58,823 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 148 transitions. [2020-10-16 10:55:58,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:55:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 148 transitions. [2020-10-16 10:55:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:55:58,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:55:58,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:55:58,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:55:58,826 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:55:58,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:55:58,826 INFO L82 PathProgramCache]: Analyzing trace with hash 390027313, now seen corresponding path program 1 times [2020-10-16 10:55:58,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:55:58,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124473778] [2020-10-16 10:55:58,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:55:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:55:58,866 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 10:55:58,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124473778] [2020-10-16 10:55:58,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:55:58,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:55:58,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041054913] [2020-10-16 10:55:58,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:55:58,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:55:58,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:55:58,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:55:58,868 INFO L87 Difference]: Start difference. First operand 66 states and 148 transitions. Second operand 3 states. [2020-10-16 10:55:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:55:58,890 INFO L93 Difference]: Finished difference Result 66 states and 143 transitions. [2020-10-16 10:55:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:55:58,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 10:55:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:55:58,891 INFO L225 Difference]: With dead ends: 66 [2020-10-16 10:55:58,892 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 10:55:58,892 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 10:55:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 10:55:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 10:55:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 10:55:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2020-10-16 10:55:58,898 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 9 [2020-10-16 10:55:58,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:55:58,899 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2020-10-16 10:55:58,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:55:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2020-10-16 10:55:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:55:58,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:55:58,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:55:58,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:55:58,901 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:55:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:55:58,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1213925997, now seen corresponding path program 2 times [2020-10-16 10:55:58,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:55:58,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179303976] [2020-10-16 10:55:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:55:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:55:58,932 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 10:55:58,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179303976] [2020-10-16 10:55:58,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:55:58,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:55:58,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393960763] [2020-10-16 10:55:58,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:55:58,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:55:58,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:55:58,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:55:58,935 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 3 states. [2020-10-16 10:55:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:55:58,952 INFO L93 Difference]: Finished difference Result 37 states and 93 transitions. [2020-10-16 10:55:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:55:58,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 10:55:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:55:58,953 INFO L225 Difference]: With dead ends: 37 [2020-10-16 10:55:58,953 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 10:55:58,954 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 10:55:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 10:55:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 10:55:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 10:55:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 10:55:58,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-16 10:55:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:55:58,955 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 10:55:58,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:55:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 10:55:58,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 10:55:58,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 10:55:58,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:55:58 BasicIcfg [2020-10-16 10:55:58,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:55:58,963 INFO L168 Benchmark]: Toolchain (without parser) took 2954.88 ms. Allocated memory was 138.9 MB in the beginning and 233.3 MB in the end (delta: 94.4 MB). Free memory was 100.8 MB in the beginning and 86.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,964 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 10:55:58,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.50 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.6 MB in the beginning and 158.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.98 ms. Allocated memory is still 200.8 MB. Free memory was 158.9 MB in the beginning and 156.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,967 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 ms. Allocated memory is still 200.8 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,967 INFO L168 Benchmark]: RCFGBuilder took 412.45 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 135.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,968 INFO L168 Benchmark]: TraceAbstraction took 1786.98 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 134.6 MB in the beginning and 86.4 MB in the end (delta: 48.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-10-16 10:55:58,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.50 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.6 MB in the beginning and 158.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 74.98 ms. Allocated memory is still 200.8 MB. Free memory was 158.9 MB in the beginning and 156.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.91 ms. Allocated memory is still 200.8 MB. Free memory was 156.8 MB in the beginning and 155.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 412.45 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 135.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1786.98 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 134.6 MB in the beginning and 86.4 MB in the end (delta: 48.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 848 VarBasedMoverChecksPositive, 65 VarBasedMoverChecksNegative, 34 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 132 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 57 PlacesBefore, 27 PlacesAfterwards, 65 TransitionsBefore, 33 TransitionsAfterwards, 1302 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 43 TotalNumberOfCompositions, 2818 MoverChecksTotal - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 701]: 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, 54 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 151 SDtfs, 64 SDslu, 48 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...