/usr/bin/java -Xmx16000000000 -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 0.1.25-11af1e5 [2020-10-11 13:41:01,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 13:41:01,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 13:41:01,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 13:41:01,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 13:41:01,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 13:41:01,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 13:41:01,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 13:41:01,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 13:41:01,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 13:41:01,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 13:41:01,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 13:41:01,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 13:41:01,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 13:41:01,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 13:41:01,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 13:41:01,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 13:41:01,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 13:41:01,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 13:41:01,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 13:41:01,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 13:41:01,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 13:41:01,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 13:41:01,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 13:41:01,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 13:41:01,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 13:41:01,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 13:41:01,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 13:41:01,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 13:41:01,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 13:41:01,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 13:41:01,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 13:41:01,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 13:41:01,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 13:41:01,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 13:41:01,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 13:41:01,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 13:41:01,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 13:41:01,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 13:41:01,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 13:41:01,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 13:41:01,209 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 13:41:01,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 13:41:01,210 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 13:41:01,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 13:41:01,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 13:41:01,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 13:41:01,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 13:41:01,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 13:41:01,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 13:41:01,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 13:41:01,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 13:41:01,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 13:41:01,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 13:41:01,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 13:41:01,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 13:41:01,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 13:41:01,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 13:41:01,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 13:41:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 13:41:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 13:41:01,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 13:41:01,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 13:41:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 13:41:01,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 13:41:01,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 13:41:01,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 13:41:01,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 13:41:01,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 13:41:01,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 13:41:01,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 13:41:01,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 13:41:01,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/15_dekker.i [2020-10-11 13:41:01,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809122225/311e463aef31466ba1dddaf549ca15c5/FLAG964f5b231 [2020-10-11 13:41:02,148 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 13:41:02,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/15_dekker.i [2020-10-11 13:41:02,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809122225/311e463aef31466ba1dddaf549ca15c5/FLAG964f5b231 [2020-10-11 13:41:02,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809122225/311e463aef31466ba1dddaf549ca15c5 [2020-10-11 13:41:02,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 13:41:02,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 13:41:02,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 13:41:02,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 13:41:02,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 13:41:02,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:41:02" (1/1) ... [2020-10-11 13:41:02,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd61ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:02, skipping insertion in model container [2020-10-11 13:41:02,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:41:02" (1/1) ... [2020-10-11 13:41:02,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 13:41:02,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 13:41:02,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:41:03,002 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 13:41:03,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 13:41:03,123 INFO L208 MainTranslator]: Completed translation [2020-10-11 13:41:03,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03 WrapperNode [2020-10-11 13:41:03,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 13:41:03,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 13:41:03,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 13:41:03,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 13:41:03,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 13:41:03,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 13:41:03,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 13:41:03,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 13:41:03,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... [2020-10-11 13:41:03,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 13:41:03,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 13:41:03,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 13:41:03,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 13:41:03,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 13:41:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-11 13:41:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-11 13:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 13:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 13:41:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 13:41:03,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 13:41:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 13:41:03,284 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 13:41:03,612 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 13:41:03,612 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 13:41:03,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:41:03 BoogieIcfgContainer [2020-10-11 13:41:03,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 13:41:03,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 13:41:03,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 13:41:03,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 13:41:03,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:41:02" (1/3) ... [2020-10-11 13:41:03,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764a322d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:41:03, skipping insertion in model container [2020-10-11 13:41:03,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:41:03" (2/3) ... [2020-10-11 13:41:03,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764a322d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:41:03, skipping insertion in model container [2020-10-11 13:41:03,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:41:03" (3/3) ... [2020-10-11 13:41:03,623 INFO L111 eAbstractionObserver]: Analyzing ICFG 15_dekker.i [2020-10-11 13:41:03,640 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 13:41:03,640 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 13:41:03,651 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 13:41:03,652 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 13:41:03,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:41:03,706 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 13:41:03,726 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:41:03,726 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:41:03,726 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:41:03,727 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:41:03,727 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:41:03,727 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:41:03,727 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:41:03,727 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:41:03,744 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:41:03,747 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions, 135 flow [2020-10-11 13:41:03,750 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 65 transitions, 135 flow [2020-10-11 13:41:03,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions, 135 flow [2020-10-11 13:41:03,794 INFO L129 PetriNetUnfolder]: 12/64 cut-off events. [2020-10-11 13:41:03,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 13:41:03,801 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. [2020-10-11 13:41:03,804 INFO L117 LiptonReduction]: Number of co-enabled transitions 1302 [2020-10-11 13:41:04,755 INFO L132 LiptonReduction]: Checked pairs total: 2818 [2020-10-11 13:41:04,755 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-11 13:41:04,763 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 33 transitions, 71 flow [2020-10-11 13:41:04,780 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 123 states. [2020-10-11 13:41:04,783 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-10-11 13:41:04,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-11 13:41:04,790 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:41:04,791 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-11 13:41:04,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:41:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:41:04,798 INFO L82 PathProgramCache]: Analyzing trace with hash 265919371, now seen corresponding path program 1 times [2020-10-11 13:41:04,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:41:04,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945909403] [2020-10-11 13:41:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:41:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:41:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:41:04,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945909403] [2020-10-11 13:41:04,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:41:04,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:41:04,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693443387] [2020-10-11 13:41:04,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 13:41:04,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:41:05,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 13:41:05,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 13:41:05,009 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2020-10-11 13:41:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:41:05,034 INFO L93 Difference]: Finished difference Result 123 states and 288 transitions. [2020-10-11 13:41:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 13:41:05,036 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-10-11 13:41:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:41:05,050 INFO L225 Difference]: With dead ends: 123 [2020-10-11 13:41:05,051 INFO L226 Difference]: Without dead ends: 114 [2020-10-11 13:41:05,052 INFO L673 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 [2020-10-11 13:41:05,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-11 13:41:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-11 13:41:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-11 13:41:05,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 270 transitions. [2020-10-11 13:41:05,108 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 270 transitions. Word has length 5 [2020-10-11 13:41:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:41:05,109 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 270 transitions. [2020-10-11 13:41:05,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 13:41:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 270 transitions. [2020-10-11 13:41:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 13:41:05,111 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:41:05,111 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-11 13:41:05,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 13:41:05,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:41:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:41:05,112 INFO L82 PathProgramCache]: Analyzing trace with hash -346472462, now seen corresponding path program 1 times [2020-10-11 13:41:05,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:41:05,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892927684] [2020-10-11 13:41:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:41:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:41:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:41:05,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892927684] [2020-10-11 13:41:05,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:41:05,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:41:05,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857167543] [2020-10-11 13:41:05,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:41:05,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:41:05,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:41:05,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:41:05,178 INFO L87 Difference]: Start difference. First operand 114 states and 270 transitions. Second operand 3 states. [2020-10-11 13:41:05,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:41:05,212 INFO L93 Difference]: Finished difference Result 119 states and 267 transitions. [2020-10-11 13:41:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:41:05,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-11 13:41:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:41:05,214 INFO L225 Difference]: With dead ends: 119 [2020-10-11 13:41:05,214 INFO L226 Difference]: Without dead ends: 98 [2020-10-11 13:41:05,215 INFO L673 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 [2020-10-11 13:41:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-11 13:41:05,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2020-10-11 13:41:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-11 13:41:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 213 transitions. [2020-10-11 13:41:05,228 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 213 transitions. Word has length 6 [2020-10-11 13:41:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:41:05,229 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 213 transitions. [2020-10-11 13:41:05,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:41:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 213 transitions. [2020-10-11 13:41:05,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-11 13:41:05,230 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:41:05,230 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-11 13:41:05,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 13:41:05,231 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:41:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:41:05,231 INFO L82 PathProgramCache]: Analyzing trace with hash -347203723, now seen corresponding path program 1 times [2020-10-11 13:41:05,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:41:05,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595494513] [2020-10-11 13:41:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:41:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:41:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:41:05,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595494513] [2020-10-11 13:41:05,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:41:05,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:41:05,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053613915] [2020-10-11 13:41:05,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:41:05,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:41:05,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:41:05,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:41:05,264 INFO L87 Difference]: Start difference. First operand 92 states and 213 transitions. Second operand 3 states. [2020-10-11 13:41:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:41:05,286 INFO L93 Difference]: Finished difference Result 87 states and 195 transitions. [2020-10-11 13:41:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:41:05,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-11 13:41:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:41:05,287 INFO L225 Difference]: With dead ends: 87 [2020-10-11 13:41:05,287 INFO L226 Difference]: Without dead ends: 66 [2020-10-11 13:41:05,288 INFO L673 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 [2020-10-11 13:41:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-11 13:41:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-11 13:41:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 13:41:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 148 transitions. [2020-10-11 13:41:05,295 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 148 transitions. Word has length 6 [2020-10-11 13:41:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:41:05,295 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 148 transitions. [2020-10-11 13:41:05,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:41:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 148 transitions. [2020-10-11 13:41:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:41:05,296 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:41:05,297 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:41:05,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 13:41:05,297 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:41:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:41:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash 390027313, now seen corresponding path program 1 times [2020-10-11 13:41:05,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:41:05,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085496498] [2020-10-11 13:41:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:41:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:41:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:41:05,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085496498] [2020-10-11 13:41:05,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:41:05,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:41:05,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572345109] [2020-10-11 13:41:05,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:41:05,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:41:05,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:41:05,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:41:05,351 INFO L87 Difference]: Start difference. First operand 66 states and 148 transitions. Second operand 3 states. [2020-10-11 13:41:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:41:05,373 INFO L93 Difference]: Finished difference Result 66 states and 143 transitions. [2020-10-11 13:41:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:41:05,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 13:41:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:41:05,376 INFO L225 Difference]: With dead ends: 66 [2020-10-11 13:41:05,376 INFO L226 Difference]: Without dead ends: 56 [2020-10-11 13:41:05,377 INFO L673 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 [2020-10-11 13:41:05,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-11 13:41:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-11 13:41:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-11 13:41:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2020-10-11 13:41:05,384 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 9 [2020-10-11 13:41:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:41:05,384 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2020-10-11 13:41:05,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:41:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2020-10-11 13:41:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 13:41:05,385 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:41:05,385 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:41:05,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 13:41:05,386 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:41:05,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:41:05,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1213925997, now seen corresponding path program 2 times [2020-10-11 13:41:05,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:41:05,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549390102] [2020-10-11 13:41:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:41:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:41:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 13:41:05,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549390102] [2020-10-11 13:41:05,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:41:05,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:41:05,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844576586] [2020-10-11 13:41:05,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:41:05,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:41:05,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:41:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:41:05,417 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 3 states. [2020-10-11 13:41:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:41:05,429 INFO L93 Difference]: Finished difference Result 37 states and 93 transitions. [2020-10-11 13:41:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:41:05,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 13:41:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:41:05,430 INFO L225 Difference]: With dead ends: 37 [2020-10-11 13:41:05,430 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 13:41:05,431 INFO L673 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 [2020-10-11 13:41:05,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 13:41:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 13:41:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 13:41:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 13:41:05,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-11 13:41:05,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:41:05,432 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 13:41:05,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:41:05,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 13:41:05,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 13:41:05,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 13:41:05,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:41:05 BasicIcfg [2020-10-11 13:41:05,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 13:41:05,440 INFO L168 Benchmark]: Toolchain (without parser) took 2983.49 ms. Allocated memory was 250.1 MB in the beginning and 356.0 MB in the end (delta: 105.9 MB). Free memory was 207.3 MB in the beginning and 237.7 MB in the end (delta: -30.4 MB). Peak memory consumption was 75.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,441 INFO L168 Benchmark]: CDTParser took 1.38 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.17 ms. Allocated memory was 250.1 MB in the beginning and 309.3 MB in the end (delta: 59.2 MB). Free memory was 207.3 MB in the beginning and 265.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.57 ms. Allocated memory is still 309.3 MB. Free memory was 265.4 MB in the beginning and 262.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,444 INFO L168 Benchmark]: Boogie Preprocessor took 25.98 ms. Allocated memory is still 309.3 MB. Free memory was 262.8 MB in the beginning and 261.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,444 INFO L168 Benchmark]: RCFGBuilder took 393.11 ms. Allocated memory is still 309.3 MB. Free memory was 261.9 MB in the beginning and 240.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,445 INFO L168 Benchmark]: TraceAbstraction took 1821.20 ms. Allocated memory was 309.3 MB in the beginning and 356.0 MB in the end (delta: 46.7 MB). Free memory was 240.9 MB in the beginning and 237.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 49.8 MB. Max. memory is 14.2 GB. [2020-10-11 13:41:05,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 668.17 ms. Allocated memory was 250.1 MB in the beginning and 309.3 MB in the end (delta: 59.2 MB). Free memory was 207.3 MB in the beginning and 265.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 68.57 ms. Allocated memory is still 309.3 MB. Free memory was 265.4 MB in the beginning and 262.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.98 ms. Allocated memory is still 309.3 MB. Free memory was 262.8 MB in the beginning and 261.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * RCFGBuilder took 393.11 ms. Allocated memory is still 309.3 MB. Free memory was 261.9 MB in the beginning and 240.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1821.20 ms. Allocated memory was 309.3 MB in the beginning and 356.0 MB in the end (delta: 46.7 MB). Free memory was 240.9 MB in the beginning and 237.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 49.8 MB. Max. memory is 14.2 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: 0.2s, 132 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 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: 1.7s, 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...