/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/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:56:38,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:56:38,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:56:38,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:56:38,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:56:38,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:56:38,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:56:38,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:56:38,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:56:38,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:56:38,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:56:38,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:56:38,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:56:38,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:56:38,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:56:38,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:56:38,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:56:38,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:56:38,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:56:38,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:56:38,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:56:38,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:56:38,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:56:38,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:56:38,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:56:38,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:56:38,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:56:38,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:56:38,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:56:38,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:56:38,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:56:38,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:56:38,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:56:38,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:56:38,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:56:38,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:56:38,311 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 [2019-12-26 20:56:38,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:56:38,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:56:38,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:56:38,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:56:38,340 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:56:38,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:56:38,340 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:56:38,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:56:38,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:56:38,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:56:38,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:56:38,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:56:38,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:56:38,341 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:56:38,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:56:38,342 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:56:38,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:56:38,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:56:38,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:56:38,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:56:38,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:56:38,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:56:38,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:56:38,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:56:38,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:56:38,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:56:38,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:56:38,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:56:38,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:56:38,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:56:38,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:56:38,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:56:38,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:56:38,642 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:56:38,642 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:56:38,643 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-26 20:56:38,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdc55669/c320caa3db44448481e116da33c1d7bc/FLAG9403868c3 [2019-12-26 20:56:39,231 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:56:39,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2019-12-26 20:56:39,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdc55669/c320caa3db44448481e116da33c1d7bc/FLAG9403868c3 [2019-12-26 20:56:39,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdc55669/c320caa3db44448481e116da33c1d7bc [2019-12-26 20:56:39,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:56:39,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:56:39,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:56:39,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:56:39,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:56:39,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:56:39" (1/1) ... [2019-12-26 20:56:39,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62730ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:39, skipping insertion in model container [2019-12-26 20:56:39,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:56:39" (1/1) ... [2019-12-26 20:56:39,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:56:39,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:56:40,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:56:40,180 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:56:40,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:56:40,313 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:56:40,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40 WrapperNode [2019-12-26 20:56:40,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:56:40,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:56:40,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:56:40,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:56:40,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:56:40,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:56:40,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:56:40,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:56:40,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (1/1) ... [2019-12-26 20:56:40,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:56:40,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:56:40,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:56:40,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:56:40,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (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 [2019-12-26 20:56:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-26 20:56:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-26 20:56:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:56:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:56:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:56:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:56:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:56:40,459 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:56:40,801 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:56:40,802 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-26 20:56:40,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:56:40 BoogieIcfgContainer [2019-12-26 20:56:40,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:56:40,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:56:40,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:56:40,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:56:40,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:56:39" (1/3) ... [2019-12-26 20:56:40,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774b3446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:56:40, skipping insertion in model container [2019-12-26 20:56:40,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:56:40" (2/3) ... [2019-12-26 20:56:40,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774b3446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:56:40, skipping insertion in model container [2019-12-26 20:56:40,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:56:40" (3/3) ... [2019-12-26 20:56:40,812 INFO L109 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2019-12-26 20:56:40,823 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:56:40,823 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:56:40,830 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-26 20:56:40,831 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:56:40,853 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,854 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,854 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,854 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,855 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,855 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,860 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,860 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,860 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,861 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:56:40,876 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 20:56:40,893 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:56:40,894 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:56:40,894 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:56:40,894 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:56:40,894 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:56:40,894 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:56:40,894 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:56:40,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:56:40,906 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 51 transitions [2019-12-26 20:56:40,908 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions [2019-12-26 20:56:40,946 INFO L132 PetriNetUnfolder]: 6/50 cut-off events. [2019-12-26 20:56:40,947 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:56:40,954 INFO L76 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2019-12-26 20:56:40,957 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions [2019-12-26 20:56:40,975 INFO L132 PetriNetUnfolder]: 6/50 cut-off events. [2019-12-26 20:56:40,975 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 20:56:40,977 INFO L76 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 6/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs. 0/42 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2019-12-26 20:56:40,979 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2019-12-26 20:56:40,981 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:56:41,965 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1164 [2019-12-26 20:56:41,966 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-26 20:56:41,970 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 23 transitions [2019-12-26 20:56:41,982 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2019-12-26 20:56:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-12-26 20:56:41,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-26 20:56:41,992 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:56:41,993 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-26 20:56:41,993 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:56:42,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:56:42,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1914205477, now seen corresponding path program 1 times [2019-12-26 20:56:42,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:56:42,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514924702] [2019-12-26 20:56:42,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:56:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:56:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:56:42,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514924702] [2019-12-26 20:56:42,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:56:42,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:56:42,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882760476] [2019-12-26 20:56:42,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-26 20:56:42,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:56:42,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-26 20:56:42,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-26 20:56:42,195 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2019-12-26 20:56:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:56:42,214 INFO L93 Difference]: Finished difference Result 74 states and 146 transitions. [2019-12-26 20:56:42,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-26 20:56:42,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-26 20:56:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:56:42,228 INFO L225 Difference]: With dead ends: 74 [2019-12-26 20:56:42,228 INFO L226 Difference]: Without dead ends: 68 [2019-12-26 20:56:42,229 INFO L631 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 [2019-12-26 20:56:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-26 20:56:42,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-12-26 20:56:42,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-26 20:56:42,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 134 transitions. [2019-12-26 20:56:42,268 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 134 transitions. Word has length 6 [2019-12-26 20:56:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:56:42,268 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 134 transitions. [2019-12-26 20:56:42,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-26 20:56:42,268 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 134 transitions. [2019-12-26 20:56:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-26 20:56:42,269 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:56:42,270 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:56:42,270 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:56:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:56:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash -789185163, now seen corresponding path program 1 times [2019-12-26 20:56:42,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:56:42,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172160375] [2019-12-26 20:56:42,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:56:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:56:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:56:42,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172160375] [2019-12-26 20:56:42,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:56:42,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:56:42,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940396384] [2019-12-26 20:56:42,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:56:42,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:56:42,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:56:42,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:56:42,332 INFO L87 Difference]: Start difference. First operand 68 states and 134 transitions. Second operand 3 states. [2019-12-26 20:56:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:56:42,366 INFO L93 Difference]: Finished difference Result 73 states and 134 transitions. [2019-12-26 20:56:42,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:56:42,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-26 20:56:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:56:42,368 INFO L225 Difference]: With dead ends: 73 [2019-12-26 20:56:42,368 INFO L226 Difference]: Without dead ends: 58 [2019-12-26 20:56:42,369 INFO L631 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 [2019-12-26 20:56:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-26 20:56:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2019-12-26 20:56:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-26 20:56:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 101 transitions. [2019-12-26 20:56:42,378 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 101 transitions. Word has length 7 [2019-12-26 20:56:42,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:56:42,379 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 101 transitions. [2019-12-26 20:56:42,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:56:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2019-12-26 20:56:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-26 20:56:42,380 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:56:42,380 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:56:42,381 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:56:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:56:42,381 INFO L82 PathProgramCache]: Analyzing trace with hash -773727376, now seen corresponding path program 1 times [2019-12-26 20:56:42,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:56:42,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403431079] [2019-12-26 20:56:42,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:56:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:56:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:56:42,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403431079] [2019-12-26 20:56:42,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:56:42,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:56:42,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174408323] [2019-12-26 20:56:42,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:56:42,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:56:42,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:56:42,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:56:42,431 INFO L87 Difference]: Start difference. First operand 54 states and 101 transitions. Second operand 3 states. [2019-12-26 20:56:42,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:56:42,454 INFO L93 Difference]: Finished difference Result 50 states and 88 transitions. [2019-12-26 20:56:42,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:56:42,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-26 20:56:42,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:56:42,455 INFO L225 Difference]: With dead ends: 50 [2019-12-26 20:56:42,456 INFO L226 Difference]: Without dead ends: 40 [2019-12-26 20:56:42,456 INFO L631 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 [2019-12-26 20:56:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-26 20:56:42,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-26 20:56:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-26 20:56:42,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 69 transitions. [2019-12-26 20:56:42,462 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 69 transitions. Word has length 7 [2019-12-26 20:56:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:56:42,462 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 69 transitions. [2019-12-26 20:56:42,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:56:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2019-12-26 20:56:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:56:42,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:56:42,464 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:56:42,464 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:56:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:56:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash -426072120, now seen corresponding path program 1 times [2019-12-26 20:56:42,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:56:42,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232825913] [2019-12-26 20:56:42,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:56:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:56:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:56:42,515 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232825913] [2019-12-26 20:56:42,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:56:42,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:56:42,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896947817] [2019-12-26 20:56:42,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:56:42,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:56:42,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:56:42,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:56:42,517 INFO L87 Difference]: Start difference. First operand 40 states and 69 transitions. Second operand 4 states. [2019-12-26 20:56:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:56:42,561 INFO L93 Difference]: Finished difference Result 45 states and 78 transitions. [2019-12-26 20:56:42,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:56:42,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 20:56:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:56:42,563 INFO L225 Difference]: With dead ends: 45 [2019-12-26 20:56:42,563 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 20:56:42,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:56:42,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 20:56:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 20:56:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 20:56:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2019-12-26 20:56:42,569 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 11 [2019-12-26 20:56:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:56:42,569 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2019-12-26 20:56:42,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:56:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2019-12-26 20:56:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:56:42,570 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:56:42,570 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:56:42,571 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:56:42,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:56:42,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1603258680, now seen corresponding path program 2 times [2019-12-26 20:56:42,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:56:42,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496287748] [2019-12-26 20:56:42,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:56:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:56:42,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:56:42,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496287748] [2019-12-26 20:56:42,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:56:42,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:56:42,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588041652] [2019-12-26 20:56:42,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:56:42,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:56:42,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:56:42,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:56:42,654 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2019-12-26 20:56:42,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:56:42,669 INFO L93 Difference]: Finished difference Result 17 states and 29 transitions. [2019-12-26 20:56:42,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:56:42,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 20:56:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:56:42,670 INFO L225 Difference]: With dead ends: 17 [2019-12-26 20:56:42,670 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 20:56:42,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:56:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 20:56:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 20:56:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 20:56:42,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 20:56:42,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 20:56:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:56:42,672 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 20:56:42,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:56:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 20:56:42,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 20:56:42,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 08:56:42 BasicIcfg [2019-12-26 20:56:42,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 20:56:42,680 INFO L168 Benchmark]: Toolchain (without parser) took 3107.20 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 100.3 MB in the beginning and 102.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 95.0 MB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,681 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 137.9 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-26 20:56:42,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.92 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.8 MB in the beginning and 162.0 MB in the end (delta: -62.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 202.4 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,684 INFO L168 Benchmark]: Boogie Preprocessor took 24.92 ms. Allocated memory is still 202.4 MB. Free memory was 160.1 MB in the beginning and 159.1 MB in the end (delta: 971.9 kB). Peak memory consumption was 971.9 kB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,684 INFO L168 Benchmark]: RCFGBuilder took 418.81 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 140.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,685 INFO L168 Benchmark]: TraceAbstraction took 1872.35 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 139.8 MB in the beginning and 102.3 MB in the end (delta: 37.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2019-12-26 20:56:42,690 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 137.9 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.92 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.8 MB in the beginning and 162.0 MB in the end (delta: -62.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 202.4 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.92 ms. Allocated memory is still 202.4 MB. Free memory was 160.1 MB in the beginning and 159.1 MB in the end (delta: 971.9 kB). Peak memory consumption was 971.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 418.81 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 140.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1872.35 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 139.8 MB in the beginning and 102.3 MB in the end (delta: 37.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 49 ProgramPointsBefore, 20 ProgramPointsAfterwards, 51 TransitionsBefore, 23 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 320 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1164 CheckedPairsTotal, 34 TotalNumberOfCompositions - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: 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, 46 locations, 2 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 46 SDslu, 35 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...