/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/sigma.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 12:59:17,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 12:59:17,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 12:59:17,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 12:59:18,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 12:59:18,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 12:59:18,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 12:59:18,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 12:59:18,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 12:59:18,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 12:59:18,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 12:59:18,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 12:59:18,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 12:59:18,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 12:59:18,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 12:59:18,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 12:59:18,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 12:59:18,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 12:59:18,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 12:59:18,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 12:59:18,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 12:59:18,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 12:59:18,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 12:59:18,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 12:59:18,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 12:59:18,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 12:59:18,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 12:59:18,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 12:59:18,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 12:59:18,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 12:59:18,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 12:59:18,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 12:59:18,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 12:59:18,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 12:59:18,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 12:59:18,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 12:59:18,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 12:59:18,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 12:59:18,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 12:59:18,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 12:59:18,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 12:59:18,041 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 12:59:18,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 12:59:18,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 12:59:18,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 12:59:18,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 12:59:18,093 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 12:59:18,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 12:59:18,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 12:59:18,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 12:59:18,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 12:59:18,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 12:59:18,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 12:59:18,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 12:59:18,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 12:59:18,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 12:59:18,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 12:59:18,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 12:59:18,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 12:59:18,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 12:59:18,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 12:59:18,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 12:59:18,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 12:59:18,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 12:59:18,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 12:59:18,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 12:59:18,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 12:59:18,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 12:59:18,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 12:59:18,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 12:59:18,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 12:59:18,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 12:59:18,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 12:59:18,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 12:59:18,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 12:59:18,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 12:59:18,439 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 12:59:18,440 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2020-10-11 12:59:18,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59424ffff/387be0a84e574031b599f8b652132ccd/FLAG845d7777a [2020-10-11 12:59:19,154 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 12:59:19,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2020-10-11 12:59:19,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59424ffff/387be0a84e574031b599f8b652132ccd/FLAG845d7777a [2020-10-11 12:59:19,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59424ffff/387be0a84e574031b599f8b652132ccd [2020-10-11 12:59:19,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 12:59:19,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 12:59:19,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 12:59:19,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 12:59:19,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 12:59:19,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:59:19" (1/1) ... [2020-10-11 12:59:19,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d6cdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:19, skipping insertion in model container [2020-10-11 12:59:19,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:59:19" (1/1) ... [2020-10-11 12:59:19,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 12:59:19,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 12:59:20,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 12:59:20,085 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 12:59:20,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 12:59:20,314 INFO L208 MainTranslator]: Completed translation [2020-10-11 12:59:20,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20 WrapperNode [2020-10-11 12:59:20,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 12:59:20,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 12:59:20,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 12:59:20,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 12:59:20,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 12:59:20,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 12:59:20,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 12:59:20,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 12:59:20,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (1/1) ... [2020-10-11 12:59:20,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 12:59:20,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 12:59:20,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 12:59:20,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 12:59:20,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (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 12:59:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 12:59:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-11 12:59:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 12:59:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 12:59:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 12:59:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-11 12:59:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-11 12:59:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-10-11 12:59:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-10-11 12:59:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 12:59:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 12:59:20,487 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 12:59:20,918 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 12:59:20,918 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-11 12:59:20,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:59:20 BoogieIcfgContainer [2020-10-11 12:59:20,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 12:59:20,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 12:59:20,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 12:59:20,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 12:59:20,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:59:19" (1/3) ... [2020-10-11 12:59:20,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f0cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:59:20, skipping insertion in model container [2020-10-11 12:59:20,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:59:20" (2/3) ... [2020-10-11 12:59:20,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f0cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:59:20, skipping insertion in model container [2020-10-11 12:59:20,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:59:20" (3/3) ... [2020-10-11 12:59:20,930 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2020-10-11 12:59:20,942 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 12:59:20,942 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 12:59:20,951 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 12:59:20,952 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 12:59:20,978 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,979 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,979 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,979 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,980 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,980 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,984 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,984 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,984 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:20,984 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:21,007 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 12:59:21,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 12:59:21,026 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 12:59:21,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 12:59:21,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 12:59:21,026 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 12:59:21,026 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 12:59:21,026 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 12:59:21,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 12:59:21,039 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 12:59:21,042 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 84 transitions, 176 flow [2020-10-11 12:59:21,045 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 84 transitions, 176 flow [2020-10-11 12:59:21,047 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 84 transitions, 176 flow [2020-10-11 12:59:21,103 INFO L129 PetriNetUnfolder]: 13/121 cut-off events. [2020-10-11 12:59:21,104 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 12:59:21,108 INFO L80 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 121 events. 13/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 205 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 67. Up to 4 conditions per place. [2020-10-11 12:59:21,111 INFO L117 LiptonReduction]: Number of co-enabled transitions 344 [2020-10-11 12:59:21,246 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,280 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:21,287 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:21,315 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,316 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:21,335 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,363 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:21,368 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,391 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:21,393 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:21,394 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:23,633 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:23,663 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:23,684 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,685 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:23,699 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,722 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:23,727 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:23,749 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:23,749 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:26,194 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,226 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:26,231 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:26,264 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,264 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:26,280 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:26,316 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:26,344 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:26,344 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:28,525 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,558 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:28,562 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:28,588 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,589 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:28,609 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,637 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:28,645 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,670 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:28,671 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:28,671 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:30,884 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:30,925 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:30,929 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:30,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:30,974 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:30,975 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:30,992 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:31,029 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:31,039 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:31,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:31,080 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:31,080 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:33,356 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,391 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:33,395 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,432 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:33,433 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,434 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:33,455 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:33,498 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,528 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:33,530 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:33,530 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:36,080 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-11 12:59:36,460 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-11 12:59:36,553 INFO L132 LiptonReduction]: Checked pairs total: 432 [2020-10-11 12:59:36,554 INFO L134 LiptonReduction]: Total number of compositions: 83 [2020-10-11 12:59:36,561 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 17 transitions, 42 flow [2020-10-11 12:59:36,570 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36 states. [2020-10-11 12:59:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-11 12:59:36,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 12:59:36,578 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:36,579 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 12:59:36,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:36,585 INFO L82 PathProgramCache]: Analyzing trace with hash 10051566, now seen corresponding path program 1 times [2020-10-11 12:59:36,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:36,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844861336] [2020-10-11 12:59:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:36,773 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 12:59:36,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844861336] [2020-10-11 12:59:36,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:36,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 12:59:36,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584513097] [2020-10-11 12:59:36,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 12:59:36,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:36,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 12:59:36,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:36,797 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-10-11 12:59:36,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:36,848 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2020-10-11 12:59:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 12:59:36,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 12:59:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:36,858 INFO L225 Difference]: With dead ends: 36 [2020-10-11 12:59:36,859 INFO L226 Difference]: Without dead ends: 31 [2020-10-11 12:59:36,860 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 12:59:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-11 12:59:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-11 12:59:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-11 12:59:36,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-11 12:59:36,891 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 4 [2020-10-11 12:59:36,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:36,891 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-11 12:59:36,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 12:59:36,892 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-11 12:59:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 12:59:36,892 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:36,892 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:36,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 12:59:36,893 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:36,893 INFO L82 PathProgramCache]: Analyzing trace with hash -352775593, now seen corresponding path program 1 times [2020-10-11 12:59:36,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:36,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505843025] [2020-10-11 12:59:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 12:59:36,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505843025] [2020-10-11 12:59:36,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:36,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 12:59:36,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106937042] [2020-10-11 12:59:36,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 12:59:36,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:36,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 12:59:36,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:36,980 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 4 states. [2020-10-11 12:59:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:37,018 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-10-11 12:59:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 12:59:37,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 12:59:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:37,020 INFO L225 Difference]: With dead ends: 28 [2020-10-11 12:59:37,020 INFO L226 Difference]: Without dead ends: 28 [2020-10-11 12:59:37,022 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-11 12:59:37,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-11 12:59:37,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-11 12:59:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-11 12:59:37,027 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 9 [2020-10-11 12:59:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:37,028 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-11 12:59:37,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 12:59:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-11 12:59:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 12:59:37,028 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:37,029 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-11 12:59:37,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 12:59:37,029 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:37,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1949275916, now seen corresponding path program 1 times [2020-10-11 12:59:37,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:37,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252688400] [2020-10-11 12:59:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:37,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:37,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:37,135 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 12:59:37,136 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 12:59:37,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 12:59:37,136 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 12:59:37,138 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 12:59:37,138 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-11 12:59:37,149 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,149 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,150 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,150 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,150 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,150 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,150 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,151 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,152 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,152 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,152 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,153 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,153 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,154 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,162 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,163 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,163 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,163 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:37,178 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 12:59:37,179 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 12:59:37,179 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 12:59:37,179 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 12:59:37,179 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 12:59:37,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 12:59:37,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 12:59:37,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 12:59:37,180 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 12:59:37,182 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 12:59:37,182 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 90 transitions, 198 flow [2020-10-11 12:59:37,182 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 90 transitions, 198 flow [2020-10-11 12:59:37,183 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 90 transitions, 198 flow [2020-10-11 12:59:37,225 INFO L129 PetriNetUnfolder]: 24/209 cut-off events. [2020-10-11 12:59:37,225 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-11 12:59:37,227 INFO L80 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 209 events. 24/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 438 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 123. Up to 8 conditions per place. [2020-10-11 12:59:37,230 INFO L117 LiptonReduction]: Number of co-enabled transitions 824 [2020-10-11 12:59:37,432 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:37,459 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:37,482 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,482 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:37,493 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:37,520 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:37,540 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:37,541 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:39,750 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,783 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:39,787 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:39,812 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,812 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:39,825 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,846 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:39,850 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:39,865 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:39,866 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:41,982 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:42,017 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:42,051 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,052 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:42,063 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:42,093 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,114 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:42,115 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:42,115 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:44,518 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,551 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:44,555 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,578 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:44,580 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,580 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:44,595 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:44,630 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:44,663 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:44,663 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:46,987 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:47,039 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,073 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:47,074 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,075 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:47,093 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:47,140 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:47,172 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:47,172 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:49,249 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,288 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,292 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,320 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,321 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,321 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 12:59:49,335 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,365 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,368 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,404 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,405 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,405 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 12:59:49,446 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,482 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,511 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,512 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,512 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 12:59:49,521 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,554 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,563 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,589 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 12:59:49,589 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 12:59:49,638 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,688 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,693 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,732 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,733 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,733 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:49,745 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,790 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,795 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:49,836 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:49,837 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 12:59:52,208 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-11 12:59:52,476 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-11 12:59:52,800 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-11 12:59:52,919 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-11 12:59:52,920 INFO L134 LiptonReduction]: Total number of compositions: 85 [2020-10-11 12:59:52,920 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 22 transitions, 62 flow [2020-10-11 12:59:52,925 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 109 states. [2020-10-11 12:59:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2020-10-11 12:59:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 12:59:52,926 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:52,926 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 12:59:52,926 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:52,927 INFO L82 PathProgramCache]: Analyzing trace with hash 15623651, now seen corresponding path program 1 times [2020-10-11 12:59:52,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:52,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711859790] [2020-10-11 12:59:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:53,003 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 12:59:53,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711859790] [2020-10-11 12:59:53,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:53,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 12:59:53,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408701566] [2020-10-11 12:59:53,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 12:59:53,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:53,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 12:59:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:53,008 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-10-11 12:59:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:53,057 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-11 12:59:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 12:59:53,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 12:59:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:53,061 INFO L225 Difference]: With dead ends: 109 [2020-10-11 12:59:53,062 INFO L226 Difference]: Without dead ends: 98 [2020-10-11 12:59:53,062 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 12:59:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-11 12:59:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-11 12:59:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-11 12:59:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 174 transitions. [2020-10-11 12:59:53,075 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 174 transitions. Word has length 4 [2020-10-11 12:59:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:53,075 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 174 transitions. [2020-10-11 12:59:53,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 12:59:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 174 transitions. [2020-10-11 12:59:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 12:59:53,076 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:53,076 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:53,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 12:59:53,077 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:53,077 INFO L82 PathProgramCache]: Analyzing trace with hash 125559316, now seen corresponding path program 1 times [2020-10-11 12:59:53,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:53,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13187424] [2020-10-11 12:59:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 12:59:53,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13187424] [2020-10-11 12:59:53,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:53,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 12:59:53,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369976484] [2020-10-11 12:59:53,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 12:59:53,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:53,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 12:59:53,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:53,132 INFO L87 Difference]: Start difference. First operand 98 states and 174 transitions. Second operand 4 states. [2020-10-11 12:59:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:53,178 INFO L93 Difference]: Finished difference Result 103 states and 171 transitions. [2020-10-11 12:59:53,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 12:59:53,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 12:59:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:53,182 INFO L225 Difference]: With dead ends: 103 [2020-10-11 12:59:53,182 INFO L226 Difference]: Without dead ends: 103 [2020-10-11 12:59:53,183 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-11 12:59:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2020-10-11 12:59:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-11 12:59:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 164 transitions. [2020-10-11 12:59:53,193 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 164 transitions. Word has length 10 [2020-10-11 12:59:53,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:53,193 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 164 transitions. [2020-10-11 12:59:53,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 12:59:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 164 transitions. [2020-10-11 12:59:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 12:59:53,194 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:53,194 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:53,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 12:59:53,195 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:53,195 INFO L82 PathProgramCache]: Analyzing trace with hash 823605760, now seen corresponding path program 1 times [2020-10-11 12:59:53,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:53,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050013137] [2020-10-11 12:59:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 12:59:53,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050013137] [2020-10-11 12:59:53,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473512213] [2020-10-11 12:59:53,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 12:59:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:53,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 12:59:53,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 12:59:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 12:59:53,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 12:59:53,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-11 12:59:53,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827412243] [2020-10-11 12:59:53,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 12:59:53,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:53,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 12:59:53,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 12:59:53,391 INFO L87 Difference]: Start difference. First operand 97 states and 164 transitions. Second operand 7 states. [2020-10-11 12:59:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:53,449 INFO L93 Difference]: Finished difference Result 84 states and 138 transitions. [2020-10-11 12:59:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 12:59:53,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-11 12:59:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:53,450 INFO L225 Difference]: With dead ends: 84 [2020-10-11 12:59:53,450 INFO L226 Difference]: Without dead ends: 84 [2020-10-11 12:59:53,451 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 12:59:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-11 12:59:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-11 12:59:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-11 12:59:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 138 transitions. [2020-10-11 12:59:53,458 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 138 transitions. Word has length 17 [2020-10-11 12:59:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:53,459 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 138 transitions. [2020-10-11 12:59:53,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 12:59:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 138 transitions. [2020-10-11 12:59:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 12:59:53,460 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:53,460 INFO L421 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1] [2020-10-11 12:59:53,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-11 12:59:53,667 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:53,668 INFO L82 PathProgramCache]: Analyzing trace with hash 26114190, now seen corresponding path program 1 times [2020-10-11 12:59:53,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:53,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224069156] [2020-10-11 12:59:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:53,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:53,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:53,760 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 12:59:53,760 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 12:59:53,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 12:59:53,760 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 12:59:53,762 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 12:59:53,763 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-11 12:59:53,769 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,769 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,769 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,770 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,771 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,772 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,772 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,772 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,772 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,773 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,773 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,774 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,774 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,774 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,774 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,775 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,775 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,776 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,776 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:59:53,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 12:59:53,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 12:59:53,779 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 12:59:53,779 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 12:59:53,779 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 12:59:53,779 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 12:59:53,780 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 12:59:53,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 12:59:53,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 12:59:53,782 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 12:59:53,782 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 96 transitions, 222 flow [2020-10-11 12:59:53,782 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 96 transitions, 222 flow [2020-10-11 12:59:53,783 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 96 transitions, 222 flow [2020-10-11 12:59:53,849 INFO L129 PetriNetUnfolder]: 46/368 cut-off events. [2020-10-11 12:59:53,850 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-11 12:59:53,851 INFO L80 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 368 events. 46/368 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1021 event pairs, 1 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2020-10-11 12:59:53,856 INFO L117 LiptonReduction]: Number of co-enabled transitions 1320 [2020-10-11 12:59:53,982 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:54,008 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:54,024 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,025 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:54,043 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:54,069 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,083 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:54,084 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:54,084 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:56,207 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,233 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:56,236 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:56,256 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,257 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:56,265 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:56,289 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:56,313 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:56,313 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 12:59:58,757 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,791 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:58,795 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:58,818 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,818 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 12:59:58,828 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,852 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:58,863 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,887 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 12:59:58,888 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 12:59:58,889 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:01,143 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,174 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:01,178 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,208 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:01,209 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,209 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:01,223 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,256 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:01,259 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:01,280 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:01,281 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:03,321 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,361 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,390 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,391 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,391 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,407 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,447 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,476 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,476 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,477 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,486 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,522 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,552 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,552 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,553 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,559 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,592 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,595 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,625 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,626 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,626 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,664 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,699 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,702 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,729 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,730 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,743 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,775 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,778 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,805 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,806 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,806 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,830 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,865 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,869 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,900 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,901 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:03,928 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,963 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:03,991 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:03,992 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:04,228 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,256 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:04,261 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,289 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:04,290 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,290 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:04,301 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,341 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:04,344 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,380 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:04,381 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:04,382 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:06,442 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,476 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:06,479 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:06,517 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,517 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:06,525 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:06,564 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,596 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:06,598 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:06,598 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:09,240 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-11 13:00:09,525 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-11 13:00:09,629 INFO L132 LiptonReduction]: Checked pairs total: 2069 [2020-10-11 13:00:09,630 INFO L134 LiptonReduction]: Total number of compositions: 90 [2020-10-11 13:00:09,630 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 25 transitions, 80 flow [2020-10-11 13:00:09,640 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 297 states. [2020-10-11 13:00:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-10-11 13:00:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:00:09,641 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:09,641 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:00:09,641 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:09,642 INFO L82 PathProgramCache]: Analyzing trace with hash 21531642, now seen corresponding path program 1 times [2020-10-11 13:00:09,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:09,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620663088] [2020-10-11 13:00:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:09,679 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 13:00:09,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620663088] [2020-10-11 13:00:09,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:09,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:00:09,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125890214] [2020-10-11 13:00:09,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:00:09,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:09,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:00:09,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:00:09,683 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-10-11 13:00:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:09,713 INFO L93 Difference]: Finished difference Result 297 states and 636 transitions. [2020-10-11 13:00:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:00:09,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:00:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:09,716 INFO L225 Difference]: With dead ends: 297 [2020-10-11 13:00:09,717 INFO L226 Difference]: Without dead ends: 268 [2020-10-11 13:00:09,717 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 13:00:09,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-11 13:00:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-10-11 13:00:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-11 13:00:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 580 transitions. [2020-10-11 13:00:09,739 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 580 transitions. Word has length 4 [2020-10-11 13:00:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:09,740 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 580 transitions. [2020-10-11 13:00:09,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:00:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 580 transitions. [2020-10-11 13:00:09,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:00:09,741 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:09,741 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:09,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 13:00:09,741 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:09,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:09,742 INFO L82 PathProgramCache]: Analyzing trace with hash 656916489, now seen corresponding path program 1 times [2020-10-11 13:00:09,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:09,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971188183] [2020-10-11 13:00:09,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:00:09,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971188183] [2020-10-11 13:00:09,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:09,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:00:09,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584418842] [2020-10-11 13:00:09,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:00:09,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:09,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:00:09,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:09,799 INFO L87 Difference]: Start difference. First operand 268 states and 580 transitions. Second operand 4 states. [2020-10-11 13:00:09,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:09,832 INFO L93 Difference]: Finished difference Result 299 states and 612 transitions. [2020-10-11 13:00:09,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:00:09,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:00:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:09,835 INFO L225 Difference]: With dead ends: 299 [2020-10-11 13:00:09,835 INFO L226 Difference]: Without dead ends: 299 [2020-10-11 13:00:09,836 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-11 13:00:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 277. [2020-10-11 13:00:09,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-11 13:00:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 577 transitions. [2020-10-11 13:00:09,852 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 577 transitions. Word has length 10 [2020-10-11 13:00:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:09,852 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 577 transitions. [2020-10-11 13:00:09,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:00:09,852 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 577 transitions. [2020-10-11 13:00:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:00:09,855 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:09,855 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:09,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 13:00:09,856 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:09,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1586347520, now seen corresponding path program 1 times [2020-10-11 13:00:09,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:09,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530632407] [2020-10-11 13:00:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:09,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530632407] [2020-10-11 13:00:09,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692162641] [2020-10-11 13:00:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:10,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:00:10,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:10,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:10,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-11 13:00:10,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446824618] [2020-10-11 13:00:10,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 13:00:10,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:10,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 13:00:10,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:00:10,052 INFO L87 Difference]: Start difference. First operand 277 states and 577 transitions. Second operand 6 states. [2020-10-11 13:00:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:10,098 INFO L93 Difference]: Finished difference Result 275 states and 572 transitions. [2020-10-11 13:00:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:00:10,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 13:00:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:10,104 INFO L225 Difference]: With dead ends: 275 [2020-10-11 13:00:10,104 INFO L226 Difference]: Without dead ends: 275 [2020-10-11 13:00:10,105 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:00:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-11 13:00:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-10-11 13:00:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-11 13:00:10,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 572 transitions. [2020-10-11 13:00:10,124 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 572 transitions. Word has length 17 [2020-10-11 13:00:10,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:10,125 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 572 transitions. [2020-10-11 13:00:10,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 13:00:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 572 transitions. [2020-10-11 13:00:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:00:10,132 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:10,133 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:10,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-11 13:00:10,346 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:10,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1691264658, now seen corresponding path program 1 times [2020-10-11 13:00:10,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:10,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827379911] [2020-10-11 13:00:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:10,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827379911] [2020-10-11 13:00:10,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817272874] [2020-10-11 13:00:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:10,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:00:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:10,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:10,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-11 13:00:10,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719015327] [2020-10-11 13:00:10,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:00:10,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:10,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:00:10,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:00:10,536 INFO L87 Difference]: Start difference. First operand 275 states and 572 transitions. Second operand 8 states. [2020-10-11 13:00:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:10,582 INFO L93 Difference]: Finished difference Result 271 states and 560 transitions. [2020-10-11 13:00:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:00:10,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-11 13:00:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:10,584 INFO L225 Difference]: With dead ends: 271 [2020-10-11 13:00:10,584 INFO L226 Difference]: Without dead ends: 271 [2020-10-11 13:00:10,585 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:00:10,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-11 13:00:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-11 13:00:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-11 13:00:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 560 transitions. [2020-10-11 13:00:10,594 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 560 transitions. Word has length 23 [2020-10-11 13:00:10,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:10,594 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 560 transitions. [2020-10-11 13:00:10,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:00:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 560 transitions. [2020-10-11 13:00:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:00:10,595 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:10,596 INFO L421 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1] [2020-10-11 13:00:10,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-11 13:00:10,809 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:10,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:10,810 INFO L82 PathProgramCache]: Analyzing trace with hash 539631963, now seen corresponding path program 1 times [2020-10-11 13:00:10,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:10,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271775539] [2020-10-11 13:00:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:10,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:10,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:10,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:00:10,869 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:00:10,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 13:00:10,870 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:00:10,870 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:00:10,871 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-11 13:00:10,877 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,878 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,879 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,881 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,881 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,881 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,881 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,881 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,882 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,883 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,883 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,883 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,883 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,884 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,884 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,884 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,885 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,886 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,886 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,887 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,887 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:10,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:00:10,902 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:00:10,902 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:00:10,903 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:00:10,903 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:00:10,903 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:00:10,903 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:00:10,903 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:00:10,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:00:10,904 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:00:10,905 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 102 transitions, 248 flow [2020-10-11 13:00:10,905 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 102 transitions, 248 flow [2020-10-11 13:00:10,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 102 transitions, 248 flow [2020-10-11 13:00:10,985 INFO L129 PetriNetUnfolder]: 92/671 cut-off events. [2020-10-11 13:00:10,985 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-11 13:00:10,988 INFO L80 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 671 events. 92/671 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2596 event pairs, 6 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 388. Up to 32 conditions per place. [2020-10-11 13:00:11,000 INFO L117 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-11 13:00:11,189 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,201 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,204 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,215 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,215 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-11 13:00:11,226 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,238 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,241 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,251 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,252 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:11,252 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-11 13:00:11,312 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,330 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,333 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,354 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,355 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,355 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:11,363 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,381 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,384 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,400 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:11,401 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:11,401 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:13,481 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:13,506 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,521 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:13,522 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,522 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:13,538 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:13,567 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:13,584 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:13,584 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:15,680 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:15,695 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:15,705 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,705 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-11 13:00:15,718 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,734 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:15,737 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,746 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:15,747 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:15,747 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-11 13:00:16,271 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,305 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:16,309 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,339 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:16,340 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,341 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:16,351 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,385 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:16,388 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,417 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:16,418 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:16,418 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:18,543 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,567 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:18,570 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:18,602 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,603 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:18,611 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,636 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:18,640 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:18,670 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:18,670 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:21,150 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,200 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:21,204 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,244 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:21,245 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,245 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:21,254 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:21,291 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:21,327 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:21,328 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:23,364 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,397 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:23,404 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:23,434 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,434 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:23,443 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,477 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:23,481 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,510 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:23,512 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:23,512 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:25,743 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,787 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:25,795 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:25,837 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,838 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:25,848 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,887 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:25,891 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,926 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:25,926 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:25,927 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:27,994 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,029 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:28,033 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:28,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,065 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:28,075 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:28,117 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:28,146 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:28,146 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:30,463 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-11 13:00:30,788 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-11 13:00:30,897 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-11 13:00:30,903 INFO L132 LiptonReduction]: Checked pairs total: 3489 [2020-10-11 13:00:30,904 INFO L134 LiptonReduction]: Total number of compositions: 90 [2020-10-11 13:00:30,904 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 100 flow [2020-10-11 13:00:30,931 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 817 states. [2020-10-11 13:00:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states. [2020-10-11 13:00:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:00:30,931 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:30,932 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:00:30,932 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:30,932 INFO L82 PathProgramCache]: Analyzing trace with hash 27625699, now seen corresponding path program 1 times [2020-10-11 13:00:30,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:30,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055426509] [2020-10-11 13:00:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:30,958 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 13:00:30,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055426509] [2020-10-11 13:00:30,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:30,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:00:30,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704927418] [2020-10-11 13:00:30,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:00:30,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:30,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:00:30,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:00:30,960 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 3 states. [2020-10-11 13:00:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:31,002 INFO L93 Difference]: Finished difference Result 817 states and 2065 transitions. [2020-10-11 13:00:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:00:31,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:00:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:31,010 INFO L225 Difference]: With dead ends: 817 [2020-10-11 13:00:31,011 INFO L226 Difference]: Without dead ends: 734 [2020-10-11 13:00:31,011 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 13:00:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2020-10-11 13:00:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2020-10-11 13:00:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-11 13:00:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1874 transitions. [2020-10-11 13:00:31,045 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1874 transitions. Word has length 4 [2020-10-11 13:00:31,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:31,045 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1874 transitions. [2020-10-11 13:00:31,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:00:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1874 transitions. [2020-10-11 13:00:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:00:31,046 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:31,046 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:31,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 13:00:31,046 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:31,047 INFO L82 PathProgramCache]: Analyzing trace with hash -399158139, now seen corresponding path program 1 times [2020-10-11 13:00:31,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:31,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286297295] [2020-10-11 13:00:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:00:31,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286297295] [2020-10-11 13:00:31,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:31,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:00:31,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446203688] [2020-10-11 13:00:31,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:00:31,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:31,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:00:31,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:31,107 INFO L87 Difference]: Start difference. First operand 734 states and 1874 transitions. Second operand 4 states. [2020-10-11 13:00:31,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:31,157 INFO L93 Difference]: Finished difference Result 843 states and 2061 transitions. [2020-10-11 13:00:31,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:00:31,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:00:31,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:31,163 INFO L225 Difference]: With dead ends: 843 [2020-10-11 13:00:31,163 INFO L226 Difference]: Without dead ends: 843 [2020-10-11 13:00:31,164 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-10-11 13:00:31,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 781. [2020-10-11 13:00:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2020-10-11 13:00:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1934 transitions. [2020-10-11 13:00:31,190 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1934 transitions. Word has length 10 [2020-10-11 13:00:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:31,190 INFO L481 AbstractCegarLoop]: Abstraction has 781 states and 1934 transitions. [2020-10-11 13:00:31,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:00:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1934 transitions. [2020-10-11 13:00:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:00:31,191 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:31,191 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:31,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 13:00:31,192 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:31,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2066968861, now seen corresponding path program 1 times [2020-10-11 13:00:31,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:31,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232960991] [2020-10-11 13:00:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:31,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232960991] [2020-10-11 13:00:31,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304606382] [2020-10-11 13:00:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:31,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:00:31,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:31,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:31,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-11 13:00:31,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492116056] [2020-10-11 13:00:31,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 13:00:31,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:31,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 13:00:31,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:00:31,350 INFO L87 Difference]: Start difference. First operand 781 states and 1934 transitions. Second operand 7 states. [2020-10-11 13:00:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:31,427 INFO L93 Difference]: Finished difference Result 834 states and 1946 transitions. [2020-10-11 13:00:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:00:31,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-11 13:00:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:31,433 INFO L225 Difference]: With dead ends: 834 [2020-10-11 13:00:31,434 INFO L226 Difference]: Without dead ends: 834 [2020-10-11 13:00:31,434 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:00:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-11 13:00:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 788. [2020-10-11 13:00:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-11 13:00:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1868 transitions. [2020-10-11 13:00:31,458 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1868 transitions. Word has length 17 [2020-10-11 13:00:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:31,458 INFO L481 AbstractCegarLoop]: Abstraction has 788 states and 1868 transitions. [2020-10-11 13:00:31,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 13:00:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1868 transitions. [2020-10-11 13:00:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-11 13:00:31,459 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:31,460 INFO L421 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:31,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:31,672 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:31,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:31,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1728417408, now seen corresponding path program 1 times [2020-10-11 13:00:31,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:31,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168069096] [2020-10-11 13:00:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:31,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:31,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:31,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:00:31,718 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:00:31,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 13:00:31,719 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:00:31,719 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:00:31,720 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:00:31,720 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-11 13:00:31,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,731 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,732 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,732 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,732 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,732 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,733 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,733 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,734 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,734 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,734 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,735 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,736 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,736 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,736 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,736 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,737 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,737 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,738 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,738 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,739 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,739 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:31,744 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:00:31,744 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:00:31,744 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:00:31,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:00:31,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:00:31,745 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:00:31,745 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:00:31,745 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:00:31,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:00:31,746 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:00:31,746 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 108 transitions, 276 flow [2020-10-11 13:00:31,747 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 108 transitions, 276 flow [2020-10-11 13:00:31,747 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 276 flow [2020-10-11 13:00:31,923 INFO L129 PetriNetUnfolder]: 190/1266 cut-off events. [2020-10-11 13:00:31,924 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2020-10-11 13:00:31,928 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 1266 events. 190/1266 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6695 event pairs, 23 based on Foata normal form. 0/1060 useless extension candidates. Maximal degree in co-relation 716. Up to 80 conditions per place. [2020-10-11 13:00:31,998 INFO L117 LiptonReduction]: Number of co-enabled transitions 2480 [2020-10-11 13:00:32,402 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,420 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:32,423 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:32,438 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,438 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:32,446 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,463 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:32,467 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,480 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:32,481 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:32,482 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:34,809 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:34,837 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,860 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:34,861 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,861 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:34,872 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:34,900 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,922 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:34,923 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:34,923 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:36,985 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:37,027 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,056 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:37,056 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,057 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:37,066 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,102 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:37,105 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:37,128 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:37,128 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:39,230 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:39,261 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,284 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:39,285 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,285 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:39,293 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,317 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:39,320 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,338 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:39,339 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:39,340 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:41,405 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,430 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:41,433 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,456 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:41,457 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,457 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:41,469 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:41,495 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:41,517 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:41,517 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:43,626 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,666 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,697 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,698 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:43,710 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,743 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,746 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,771 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,771 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,771 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:43,780 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,828 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,832 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,859 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,859 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:43,867 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,905 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,935 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,935 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:43,943 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:43,974 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:43,977 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,005 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,006 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,019 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,052 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,076 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,105 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,106 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,106 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,115 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,149 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,152 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,182 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,182 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,195 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,226 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,230 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,260 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,260 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,261 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,282 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,314 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,318 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,344 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,345 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,345 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,359 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,394 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,397 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,427 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,427 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,440 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,487 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,517 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,517 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,526 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,566 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,591 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,592 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,592 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,607 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,656 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,688 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,688 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,689 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,698 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,752 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,755 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,797 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,797 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,798 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,809 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,857 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,861 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,898 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,899 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,899 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:44,911 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:44,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:44,967 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:45,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:45,005 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:45,006 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:45,125 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:45,186 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:45,238 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,238 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:45,258 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:45,320 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:45,373 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:45,374 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:47,397 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,437 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,465 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,465 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,465 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,474 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,510 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,514 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,545 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,545 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,546 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,554 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,589 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,592 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,623 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,624 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,632 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,670 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,698 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,698 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,713 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,746 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,750 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,779 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,779 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,780 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,787 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,824 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,854 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,855 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,855 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,864 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,905 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,936 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,936 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,937 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:47,944 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:47,981 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:47,984 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,014 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,014 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,077 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,114 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,141 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,141 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,142 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,149 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,184 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,187 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,217 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,218 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,218 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,226 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,280 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,283 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,312 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,312 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,319 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,358 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,389 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,389 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,399 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,436 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,468 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,468 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,476 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,510 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,513 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,542 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,542 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,542 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,552 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,587 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,616 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,616 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,617 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,624 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,663 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,686 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,687 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,687 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,843 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,876 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,906 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:48,906 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:48,913 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:48,947 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,950 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:48,981 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:48,982 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:48,982 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-11 13:00:48,999 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,039 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,065 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-11 13:00:49,078 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,124 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,165 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,166 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,166 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-11 13:00:49,180 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,231 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,268 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,268 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:49,281 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,330 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,335 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,370 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,371 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,371 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:49,382 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,431 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,436 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,476 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,476 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,477 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:49,488 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,534 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,538 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,575 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:00:49,576 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:00:49,626 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,683 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,726 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,727 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,727 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:49,739 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,781 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,786 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:49,822 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:49,822 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:00:52,269 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-11 13:00:52,590 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-11 13:00:52,695 INFO L132 LiptonReduction]: Checked pairs total: 4239 [2020-10-11 13:00:52,695 INFO L134 LiptonReduction]: Total number of compositions: 93 [2020-10-11 13:00:52,696 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 31 transitions, 122 flow [2020-10-11 13:00:52,793 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2289 states. [2020-10-11 13:00:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states. [2020-10-11 13:00:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:00:52,793 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:52,794 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:00:52,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:52,794 INFO L82 PathProgramCache]: Analyzing trace with hash 33997000, now seen corresponding path program 1 times [2020-10-11 13:00:52,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:52,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891541177] [2020-10-11 13:00:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:52,814 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 13:00:52,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891541177] [2020-10-11 13:00:52,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:52,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:00:52,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228763684] [2020-10-11 13:00:52,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:00:52,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:52,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:00:52,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:00:52,816 INFO L87 Difference]: Start difference. First operand 2289 states. Second operand 3 states. [2020-10-11 13:00:52,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:52,854 INFO L93 Difference]: Finished difference Result 2289 states and 6658 transitions. [2020-10-11 13:00:52,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:00:52,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:00:52,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:52,875 INFO L225 Difference]: With dead ends: 2289 [2020-10-11 13:00:52,876 INFO L226 Difference]: Without dead ends: 2044 [2020-10-11 13:00:52,876 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 13:00:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2020-10-11 13:00:52,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2044. [2020-10-11 13:00:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2020-10-11 13:00:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 6008 transitions. [2020-10-11 13:00:52,960 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 6008 transitions. Word has length 4 [2020-10-11 13:00:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:52,960 INFO L481 AbstractCegarLoop]: Abstraction has 2044 states and 6008 transitions. [2020-10-11 13:00:52,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:00:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 6008 transitions. [2020-10-11 13:00:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:00:52,961 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:52,961 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:52,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-11 13:00:52,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1850212091, now seen corresponding path program 1 times [2020-10-11 13:00:52,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:52,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357290425] [2020-10-11 13:00:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:00:53,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357290425] [2020-10-11 13:00:53,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:00:53,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:00:53,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069693408] [2020-10-11 13:00:53,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:00:53,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:53,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:00:53,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:53,019 INFO L87 Difference]: Start difference. First operand 2044 states and 6008 transitions. Second operand 4 states. [2020-10-11 13:00:53,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:53,073 INFO L93 Difference]: Finished difference Result 2379 states and 6766 transitions. [2020-10-11 13:00:53,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:00:53,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:00:53,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:53,092 INFO L225 Difference]: With dead ends: 2379 [2020-10-11 13:00:53,092 INFO L226 Difference]: Without dead ends: 2379 [2020-10-11 13:00:53,093 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:00:53,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2020-10-11 13:00:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2221. [2020-10-11 13:00:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2020-10-11 13:00:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 6367 transitions. [2020-10-11 13:00:53,168 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 6367 transitions. Word has length 10 [2020-10-11 13:00:53,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:53,168 INFO L481 AbstractCegarLoop]: Abstraction has 2221 states and 6367 transitions. [2020-10-11 13:00:53,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:00:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 6367 transitions. [2020-10-11 13:00:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:00:53,170 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:53,170 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:53,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-11 13:00:53,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:53,171 INFO L82 PathProgramCache]: Analyzing trace with hash -50306259, now seen corresponding path program 1 times [2020-10-11 13:00:53,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:53,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250547335] [2020-10-11 13:00:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:53,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250547335] [2020-10-11 13:00:53,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487243055] [2020-10-11 13:00:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:53,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:00:53,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:53,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:53,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-11 13:00:53,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390255888] [2020-10-11 13:00:53,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 13:00:53,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:53,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 13:00:53,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:00:53,342 INFO L87 Difference]: Start difference. First operand 2221 states and 6367 transitions. Second operand 6 states. [2020-10-11 13:00:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:53,392 INFO L93 Difference]: Finished difference Result 2219 states and 6362 transitions. [2020-10-11 13:00:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:00:53,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 13:00:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:53,409 INFO L225 Difference]: With dead ends: 2219 [2020-10-11 13:00:53,409 INFO L226 Difference]: Without dead ends: 2219 [2020-10-11 13:00:53,409 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:00:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2020-10-11 13:00:53,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2020-10-11 13:00:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-10-11 13:00:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 6362 transitions. [2020-10-11 13:00:53,491 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 6362 transitions. Word has length 17 [2020-10-11 13:00:53,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:53,493 INFO L481 AbstractCegarLoop]: Abstraction has 2219 states and 6362 transitions. [2020-10-11 13:00:53,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 13:00:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 6362 transitions. [2020-10-11 13:00:53,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:00:53,496 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:53,496 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:53,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:53,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:53,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:53,711 INFO L82 PathProgramCache]: Analyzing trace with hash -811477057, now seen corresponding path program 1 times [2020-10-11 13:00:53,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:53,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134339420] [2020-10-11 13:00:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:53,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134339420] [2020-10-11 13:00:53,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778090207] [2020-10-11 13:00:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:53,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:00:53,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:53,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:53,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-11 13:00:53,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945976954] [2020-10-11 13:00:53,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:00:53,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:53,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:00:53,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:00:53,868 INFO L87 Difference]: Start difference. First operand 2219 states and 6362 transitions. Second operand 8 states. [2020-10-11 13:00:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:53,926 INFO L93 Difference]: Finished difference Result 2215 states and 6350 transitions. [2020-10-11 13:00:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:00:53,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-11 13:00:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:53,942 INFO L225 Difference]: With dead ends: 2215 [2020-10-11 13:00:53,942 INFO L226 Difference]: Without dead ends: 2215 [2020-10-11 13:00:53,943 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:00:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2020-10-11 13:00:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2020-10-11 13:00:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2215 states. [2020-10-11 13:00:54,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 6350 transitions. [2020-10-11 13:00:54,005 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 6350 transitions. Word has length 23 [2020-10-11 13:00:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:54,005 INFO L481 AbstractCegarLoop]: Abstraction has 2215 states and 6350 transitions. [2020-10-11 13:00:54,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:00:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 6350 transitions. [2020-10-11 13:00:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-11 13:00:54,006 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:54,007 INFO L421 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:54,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:54,219 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:54,220 INFO L82 PathProgramCache]: Analyzing trace with hash -346309584, now seen corresponding path program 1 times [2020-10-11 13:00:54,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:54,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614342694] [2020-10-11 13:00:54,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:54,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614342694] [2020-10-11 13:00:54,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638950287] [2020-10-11 13:00:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:54,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 13:00:54,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:54,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:54,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-11 13:00:54,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389304876] [2020-10-11 13:00:54,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 13:00:54,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:54,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 13:00:54,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:00:54,461 INFO L87 Difference]: Start difference. First operand 2215 states and 6350 transitions. Second operand 10 states. [2020-10-11 13:00:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:54,530 INFO L93 Difference]: Finished difference Result 2207 states and 6322 transitions. [2020-10-11 13:00:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:00:54,531 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-11 13:00:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:54,548 INFO L225 Difference]: With dead ends: 2207 [2020-10-11 13:00:54,548 INFO L226 Difference]: Without dead ends: 2207 [2020-10-11 13:00:54,548 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:00:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-11 13:00:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2020-10-11 13:00:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2020-10-11 13:00:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 6322 transitions. [2020-10-11 13:00:54,636 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 6322 transitions. Word has length 29 [2020-10-11 13:00:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:54,637 INFO L481 AbstractCegarLoop]: Abstraction has 2207 states and 6322 transitions. [2020-10-11 13:00:54,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 13:00:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 6322 transitions. [2020-10-11 13:00:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-11 13:00:54,640 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:54,640 INFO L421 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:54,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:54,854 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:54,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:54,855 INFO L82 PathProgramCache]: Analyzing trace with hash 107769152, now seen corresponding path program 1 times [2020-10-11 13:00:54,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:54,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287358760] [2020-10-11 13:00:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287358760] [2020-10-11 13:00:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567396887] [2020-10-11 13:00:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:00:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:00:55,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-11 13:00:55,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:00:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:00:55,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:00:55,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-11 13:00:55,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086514159] [2020-10-11 13:00:55,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 13:00:55,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:00:55,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 13:00:55,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:00:55,068 INFO L87 Difference]: Start difference. First operand 2207 states and 6322 transitions. Second operand 12 states. [2020-10-11 13:00:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:00:55,148 INFO L93 Difference]: Finished difference Result 2191 states and 6258 transitions. [2020-10-11 13:00:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 13:00:55,148 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-11 13:00:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:00:55,162 INFO L225 Difference]: With dead ends: 2191 [2020-10-11 13:00:55,162 INFO L226 Difference]: Without dead ends: 2191 [2020-10-11 13:00:55,163 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:00:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2020-10-11 13:00:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2191. [2020-10-11 13:00:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2191 states. [2020-10-11 13:00:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 6258 transitions. [2020-10-11 13:00:55,223 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 6258 transitions. Word has length 35 [2020-10-11 13:00:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:00:55,224 INFO L481 AbstractCegarLoop]: Abstraction has 2191 states and 6258 transitions. [2020-10-11 13:00:55,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 13:00:55,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 6258 transitions. [2020-10-11 13:00:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-11 13:00:55,226 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:00:55,226 INFO L421 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:00:55,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-11 13:00:55,442 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:00:55,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:00:55,442 INFO L82 PathProgramCache]: Analyzing trace with hash -793168517, now seen corresponding path program 1 times [2020-10-11 13:00:55,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:00:55,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187620180] [2020-10-11 13:00:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:00:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:55,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:00:55,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:00:55,531 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:00:55,531 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:00:55,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-11 13:00:55,531 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:00:55,532 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:00:55,535 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:00:55,535 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-11 13:00:55,547 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,548 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,549 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,550 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,551 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,552 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,553 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,553 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,553 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,554 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,555 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,556 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,560 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,561 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,561 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,561 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,562 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,562 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,562 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,562 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,564 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,564 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,564 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,564 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,565 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,565 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,566 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,566 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:00:55,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:00:55,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:00:55,571 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:00:55,571 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:00:55,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:00:55,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:00:55,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:00:55,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:00:55,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:00:55,574 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:00:55,574 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 114 transitions, 306 flow [2020-10-11 13:00:55,574 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 114 transitions, 306 flow [2020-10-11 13:00:55,574 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 114 transitions, 306 flow [2020-10-11 13:00:55,872 INFO L129 PetriNetUnfolder]: 400/2453 cut-off events. [2020-10-11 13:00:55,872 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2020-10-11 13:00:55,884 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2685 conditions, 2453 events. 400/2453 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 16405 event pairs, 72 based on Foata normal form. 0/2053 useless extension candidates. Maximal degree in co-relation 1365. Up to 192 conditions per place. [2020-10-11 13:00:55,928 INFO L117 LiptonReduction]: Number of co-enabled transitions 3144 [2020-10-11 13:00:55,949 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:55,974 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:55,978 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:56,027 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:56,028 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:56,028 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:56,038 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:56,062 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:56,066 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:56,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:56,086 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:56,087 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:00:58,649 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,676 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:58,680 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:58,703 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,703 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:00:58,710 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,734 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:58,738 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,761 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:00:58,762 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:00:58,762 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:00,773 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,805 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:00,809 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,833 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:00,834 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,835 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:00,853 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,878 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:00,886 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,909 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:00,909 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:00,910 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:02,964 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:02,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:02,994 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:03,017 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:03,018 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:03,019 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:03,026 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:03,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:03,054 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:03,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:03,077 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:03,077 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:05,153 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:05,185 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,209 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:05,210 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,210 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:05,219 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,246 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:05,251 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,273 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:05,274 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:05,274 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:07,379 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,405 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:07,409 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,431 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:07,432 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,432 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:07,441 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,466 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:07,470 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:07,491 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:07,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:09,805 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,833 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:09,836 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,857 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:09,857 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,858 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:09,866 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,895 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:09,899 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,919 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:09,920 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:09,920 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:11,986 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,016 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:12,020 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,049 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:12,050 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,050 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:12,058 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:12,092 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:12,121 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:12,121 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:14,229 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:14,281 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,316 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:14,317 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,317 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:14,324 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:14,362 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:14,393 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:14,393 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:16,784 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:16,826 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:16,856 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,856 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:16,865 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,904 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:16,907 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:16,933 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,933 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:16,942 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:16,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:16,981 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,006 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,006 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:17,013 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,048 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,051 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,080 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,080 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:17,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,127 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,155 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,155 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:17,168 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,201 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,204 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,236 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:17,236 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:17,237 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:17,563 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-11 13:01:17,862 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-11 13:01:17,966 INFO L132 LiptonReduction]: Checked pairs total: 5960 [2020-10-11 13:01:17,966 INFO L134 LiptonReduction]: Total number of compositions: 96 [2020-10-11 13:01:17,966 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 34 transitions, 146 flow [2020-10-11 13:01:18,290 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6529 states. [2020-10-11 13:01:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6529 states. [2020-10-11 13:01:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:01:18,290 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:18,290 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:01:18,290 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:18,291 INFO L82 PathProgramCache]: Analyzing trace with hash 40649002, now seen corresponding path program 1 times [2020-10-11 13:01:18,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:18,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19679514] [2020-10-11 13:01:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:18,311 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 13:01:18,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19679514] [2020-10-11 13:01:18,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:01:18,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:01:18,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270099651] [2020-10-11 13:01:18,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:01:18,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:18,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:01:18,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:01:18,313 INFO L87 Difference]: Start difference. First operand 6529 states. Second operand 3 states. [2020-10-11 13:01:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:18,402 INFO L93 Difference]: Finished difference Result 6529 states and 21447 transitions. [2020-10-11 13:01:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:01:18,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:01:18,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:18,442 INFO L225 Difference]: With dead ends: 6529 [2020-10-11 13:01:18,442 INFO L226 Difference]: Without dead ends: 5798 [2020-10-11 13:01:18,444 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 13:01:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2020-10-11 13:01:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 5798. [2020-10-11 13:01:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5798 states. [2020-10-11 13:01:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 19258 transitions. [2020-10-11 13:01:18,623 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 19258 transitions. Word has length 4 [2020-10-11 13:01:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:18,623 INFO L481 AbstractCegarLoop]: Abstraction has 5798 states and 19258 transitions. [2020-10-11 13:01:18,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:01:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 19258 transitions. [2020-10-11 13:01:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:01:18,624 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:18,624 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:18,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-11 13:01:18,624 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:18,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1545227554, now seen corresponding path program 1 times [2020-10-11 13:01:18,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:18,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542473054] [2020-10-11 13:01:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:01:18,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542473054] [2020-10-11 13:01:18,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:01:18,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:01:18,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577809825] [2020-10-11 13:01:18,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:01:18,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:18,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:01:18,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:01:18,659 INFO L87 Difference]: Start difference. First operand 5798 states and 19258 transitions. Second operand 4 states. [2020-10-11 13:01:18,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:18,720 INFO L93 Difference]: Finished difference Result 6779 states and 21955 transitions. [2020-10-11 13:01:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:01:18,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:01:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:18,744 INFO L225 Difference]: With dead ends: 6779 [2020-10-11 13:01:18,744 INFO L226 Difference]: Without dead ends: 6779 [2020-10-11 13:01:18,744 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:01:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2020-10-11 13:01:18,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6397. [2020-10-11 13:01:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2020-10-11 13:01:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 20804 transitions. [2020-10-11 13:01:18,928 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 20804 transitions. Word has length 10 [2020-10-11 13:01:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:18,928 INFO L481 AbstractCegarLoop]: Abstraction has 6397 states and 20804 transitions. [2020-10-11 13:01:18,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:01:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 20804 transitions. [2020-10-11 13:01:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:01:18,929 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:18,929 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:18,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-11 13:01:18,930 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2077640958, now seen corresponding path program 1 times [2020-10-11 13:01:18,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:18,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229589638] [2020-10-11 13:01:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:18,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229589638] [2020-10-11 13:01:18,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004429333] [2020-10-11 13:01:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:19,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:01:19,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:19,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:19,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-11 13:01:19,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249713137] [2020-10-11 13:01:19,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 13:01:19,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:19,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 13:01:19,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:01:19,078 INFO L87 Difference]: Start difference. First operand 6397 states and 20804 transitions. Second operand 7 states. [2020-10-11 13:01:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:19,162 INFO L93 Difference]: Finished difference Result 7274 states and 22654 transitions. [2020-10-11 13:01:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:01:19,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-11 13:01:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:19,185 INFO L225 Difference]: With dead ends: 7274 [2020-10-11 13:01:19,185 INFO L226 Difference]: Without dead ends: 7274 [2020-10-11 13:01:19,186 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-11 13:01:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2020-10-11 13:01:19,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 6796. [2020-10-11 13:01:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6796 states. [2020-10-11 13:01:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6796 states to 6796 states and 21344 transitions. [2020-10-11 13:01:19,457 INFO L78 Accepts]: Start accepts. Automaton has 6796 states and 21344 transitions. Word has length 17 [2020-10-11 13:01:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:19,457 INFO L481 AbstractCegarLoop]: Abstraction has 6796 states and 21344 transitions. [2020-10-11 13:01:19,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 13:01:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6796 states and 21344 transitions. [2020-10-11 13:01:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-11 13:01:19,458 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:19,458 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:19,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-10-11 13:01:19,674 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:19,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:19,674 INFO L82 PathProgramCache]: Analyzing trace with hash -592214146, now seen corresponding path program 1 times [2020-10-11 13:01:19,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:19,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557992324] [2020-10-11 13:01:19,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-11 13:01:19,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557992324] [2020-10-11 13:01:19,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329917205] [2020-10-11 13:01:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:19,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:01:19,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-11 13:01:19,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:19,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-11 13:01:19,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905684003] [2020-10-11 13:01:19,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 13:01:19,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:19,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 13:01:19,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2020-10-11 13:01:19,888 INFO L87 Difference]: Start difference. First operand 6796 states and 21344 transitions. Second operand 9 states. [2020-10-11 13:01:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:19,989 INFO L93 Difference]: Finished difference Result 6941 states and 21009 transitions. [2020-10-11 13:01:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:01:19,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-11 13:01:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:20,011 INFO L225 Difference]: With dead ends: 6941 [2020-10-11 13:01:20,011 INFO L226 Difference]: Without dead ends: 6941 [2020-10-11 13:01:20,012 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2020-10-11 13:01:20,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2020-10-11 13:01:20,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6623. [2020-10-11 13:01:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6623 states. [2020-10-11 13:01:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 20272 transitions. [2020-10-11 13:01:20,172 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 20272 transitions. Word has length 30 [2020-10-11 13:01:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:20,173 INFO L481 AbstractCegarLoop]: Abstraction has 6623 states and 20272 transitions. [2020-10-11 13:01:20,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 13:01:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 20272 transitions. [2020-10-11 13:01:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-11 13:01:20,178 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:20,178 INFO L421 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:20,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-11 13:01:20,392 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:20,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:20,392 INFO L82 PathProgramCache]: Analyzing trace with hash -431266190, now seen corresponding path program 1 times [2020-10-11 13:01:20,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:20,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810330219] [2020-10-11 13:01:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:01:20,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:01:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:01:20,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:01:20,456 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:01:20,457 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:01:20,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-11 13:01:20,457 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:01:20,458 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:01:20,460 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-11 13:01:20,471 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,474 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,475 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,476 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,478 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,478 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,480 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,480 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,484 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,484 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,485 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,485 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,486 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,491 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,492 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,495 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,495 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,495 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,495 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,496 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,497 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:20,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:01:20,502 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:01:20,502 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:01:20,503 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:01:20,503 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:01:20,503 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:01:20,503 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:01:20,503 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:01:20,503 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:01:20,505 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:01:20,505 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 120 transitions, 338 flow [2020-10-11 13:01:20,505 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 120 transitions, 338 flow [2020-10-11 13:01:20,505 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 121 places, 120 transitions, 338 flow [2020-10-11 13:01:21,304 INFO L129 PetriNetUnfolder]: 850/4840 cut-off events. [2020-10-11 13:01:21,304 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2020-10-11 13:01:21,319 INFO L80 FinitePrefix]: Finished finitePrefix Result has 5338 conditions, 4840 events. 850/4840 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 39298 event pairs, 201 based on Foata normal form. 0/4054 useless extension candidates. Maximal degree in co-relation 2671. Up to 448 conditions per place. [2020-10-11 13:01:21,387 INFO L117 LiptonReduction]: Number of co-enabled transitions 3864 [2020-10-11 13:01:21,847 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,870 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:21,873 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:21,890 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,890 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:21,898 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,915 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:21,919 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:21,933 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:21,933 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:23,972 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:23,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:23,996 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:24,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:24,018 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:24,019 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:24,026 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:24,046 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:24,049 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:24,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:24,064 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:24,065 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:26,264 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,288 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:26,291 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,314 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:26,315 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,315 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:26,321 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,346 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:26,350 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,373 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:26,374 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:26,374 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:28,592 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:28,622 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:28,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,645 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:28,651 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:28,681 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:28,706 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:28,706 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:31,384 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,417 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:31,421 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:31,453 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,453 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:31,460 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:31,498 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:31,527 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:31,527 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:33,618 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:33,656 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,686 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:33,687 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,687 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:33,697 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,727 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:33,730 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:33,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:33,758 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:01:36,140 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:36,184 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,209 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:36,210 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,210 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:36,217 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:36,257 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,281 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:36,282 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:01:36,282 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:01:36,414 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-11 13:01:36,812 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-11 13:01:36,920 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-11 13:01:36,926 INFO L132 LiptonReduction]: Checked pairs total: 7691 [2020-10-11 13:01:36,926 INFO L134 LiptonReduction]: Total number of compositions: 101 [2020-10-11 13:01:36,926 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 37 transitions, 172 flow [2020-10-11 13:01:38,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18897 states. [2020-10-11 13:01:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 18897 states. [2020-10-11 13:01:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:01:38,029 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:38,029 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:01:38,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 47630986, now seen corresponding path program 1 times [2020-10-11 13:01:38,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:38,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593524843] [2020-10-11 13:01:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:38,052 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 13:01:38,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593524843] [2020-10-11 13:01:38,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:01:38,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:01:38,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046707467] [2020-10-11 13:01:38,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:01:38,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:38,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:01:38,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:01:38,054 INFO L87 Difference]: Start difference. First operand 18897 states. Second operand 3 states. [2020-10-11 13:01:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:38,186 INFO L93 Difference]: Finished difference Result 18897 states and 69116 transitions. [2020-10-11 13:01:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:01:38,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:01:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:38,247 INFO L225 Difference]: With dead ends: 18897 [2020-10-11 13:01:38,247 INFO L226 Difference]: Without dead ends: 16708 [2020-10-11 13:01:38,247 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 13:01:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16708 states. [2020-10-11 13:01:38,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16708 to 16708. [2020-10-11 13:01:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16708 states. [2020-10-11 13:01:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16708 states to 16708 states and 61824 transitions. [2020-10-11 13:01:38,971 INFO L78 Accepts]: Start accepts. Automaton has 16708 states and 61824 transitions. Word has length 4 [2020-10-11 13:01:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:38,972 INFO L481 AbstractCegarLoop]: Abstraction has 16708 states and 61824 transitions. [2020-10-11 13:01:38,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:01:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16708 states and 61824 transitions. [2020-10-11 13:01:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:01:38,972 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:38,972 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:38,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-11 13:01:38,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:38,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1252214789, now seen corresponding path program 1 times [2020-10-11 13:01:38,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:38,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799415720] [2020-10-11 13:01:38,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:01:39,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799415720] [2020-10-11 13:01:39,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:01:39,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:01:39,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52454182] [2020-10-11 13:01:39,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:01:39,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:39,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:01:39,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:01:39,002 INFO L87 Difference]: Start difference. First operand 16708 states and 61824 transitions. Second operand 4 states. [2020-10-11 13:01:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:39,133 INFO L93 Difference]: Finished difference Result 19531 states and 70840 transitions. [2020-10-11 13:01:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:01:39,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:01:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:39,202 INFO L225 Difference]: With dead ends: 19531 [2020-10-11 13:01:39,203 INFO L226 Difference]: Without dead ends: 19531 [2020-10-11 13:01:39,203 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:01:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19531 states. [2020-10-11 13:01:39,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19531 to 18637. [2020-10-11 13:01:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18637 states. [2020-10-11 13:01:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18637 states to 18637 states and 67705 transitions. [2020-10-11 13:01:41,401 INFO L78 Accepts]: Start accepts. Automaton has 18637 states and 67705 transitions. Word has length 10 [2020-10-11 13:01:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:41,401 INFO L481 AbstractCegarLoop]: Abstraction has 18637 states and 67705 transitions. [2020-10-11 13:01:41,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:01:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18637 states and 67705 transitions. [2020-10-11 13:01:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:01:41,402 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:41,402 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:41,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-11 13:01:41,402 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:41,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1432879296, now seen corresponding path program 1 times [2020-10-11 13:01:41,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:41,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070247124] [2020-10-11 13:01:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:41,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070247124] [2020-10-11 13:01:41,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318038657] [2020-10-11 13:01:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:41,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:01:41,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:41,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:41,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-11 13:01:41,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931939155] [2020-10-11 13:01:41,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 13:01:41,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 13:01:41,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:01:41,532 INFO L87 Difference]: Start difference. First operand 18637 states and 67705 transitions. Second operand 6 states. [2020-10-11 13:01:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:41,674 INFO L93 Difference]: Finished difference Result 18635 states and 67700 transitions. [2020-10-11 13:01:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:01:41,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 13:01:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:41,741 INFO L225 Difference]: With dead ends: 18635 [2020-10-11 13:01:41,742 INFO L226 Difference]: Without dead ends: 18635 [2020-10-11 13:01:41,742 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:01:42,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18635 states. [2020-10-11 13:01:42,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18635 to 18635. [2020-10-11 13:01:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18635 states. [2020-10-11 13:01:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18635 states to 18635 states and 67700 transitions. [2020-10-11 13:01:42,402 INFO L78 Accepts]: Start accepts. Automaton has 18635 states and 67700 transitions. Word has length 17 [2020-10-11 13:01:42,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:42,402 INFO L481 AbstractCegarLoop]: Abstraction has 18635 states and 67700 transitions. [2020-10-11 13:01:42,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 13:01:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 18635 states and 67700 transitions. [2020-10-11 13:01:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:01:42,403 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:42,403 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:42,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-10-11 13:01:42,617 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:42,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:42,618 INFO L82 PathProgramCache]: Analyzing trace with hash -619616742, now seen corresponding path program 1 times [2020-10-11 13:01:42,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:42,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822615684] [2020-10-11 13:01:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:42,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822615684] [2020-10-11 13:01:42,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922786732] [2020-10-11 13:01:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:42,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:01:42,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:42,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:42,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-11 13:01:42,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354415358] [2020-10-11 13:01:42,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:01:42,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:42,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:01:42,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:01:42,952 INFO L87 Difference]: Start difference. First operand 18635 states and 67700 transitions. Second operand 8 states. [2020-10-11 13:01:43,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:43,082 INFO L93 Difference]: Finished difference Result 18631 states and 67688 transitions. [2020-10-11 13:01:43,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:01:43,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-11 13:01:43,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:43,132 INFO L225 Difference]: With dead ends: 18631 [2020-10-11 13:01:43,133 INFO L226 Difference]: Without dead ends: 18631 [2020-10-11 13:01:43,133 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:01:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18631 states. [2020-10-11 13:01:43,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18631 to 18631. [2020-10-11 13:01:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18631 states. [2020-10-11 13:01:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18631 states to 18631 states and 67688 transitions. [2020-10-11 13:01:43,583 INFO L78 Accepts]: Start accepts. Automaton has 18631 states and 67688 transitions. Word has length 23 [2020-10-11 13:01:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:43,583 INFO L481 AbstractCegarLoop]: Abstraction has 18631 states and 67688 transitions. [2020-10-11 13:01:43,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:01:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 18631 states and 67688 transitions. [2020-10-11 13:01:43,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-11 13:01:43,584 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:43,584 INFO L421 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:43,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:43,785 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:43,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:43,786 INFO L82 PathProgramCache]: Analyzing trace with hash 872252755, now seen corresponding path program 1 times [2020-10-11 13:01:43,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:43,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991019110] [2020-10-11 13:01:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:43,829 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:43,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991019110] [2020-10-11 13:01:43,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842795675] [2020-10-11 13:01:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:43,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 13:01:43,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:43,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:43,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-11 13:01:43,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998320737] [2020-10-11 13:01:43,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 13:01:43,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:43,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 13:01:43,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:01:43,957 INFO L87 Difference]: Start difference. First operand 18631 states and 67688 transitions. Second operand 10 states. [2020-10-11 13:01:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:44,073 INFO L93 Difference]: Finished difference Result 18623 states and 67660 transitions. [2020-10-11 13:01:44,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:01:44,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-11 13:01:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:44,110 INFO L225 Difference]: With dead ends: 18623 [2020-10-11 13:01:44,111 INFO L226 Difference]: Without dead ends: 18623 [2020-10-11 13:01:44,111 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:01:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18623 states. [2020-10-11 13:01:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18623 to 18623. [2020-10-11 13:01:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18623 states. [2020-10-11 13:01:44,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18623 states to 18623 states and 67660 transitions. [2020-10-11 13:01:44,699 INFO L78 Accepts]: Start accepts. Automaton has 18623 states and 67660 transitions. Word has length 29 [2020-10-11 13:01:44,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:44,699 INFO L481 AbstractCegarLoop]: Abstraction has 18623 states and 67660 transitions. [2020-10-11 13:01:44,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 13:01:44,700 INFO L276 IsEmpty]: Start isEmpty. Operand 18623 states and 67660 transitions. [2020-10-11 13:01:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-11 13:01:44,702 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:44,702 INFO L421 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:44,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-10-11 13:01:44,913 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:44,913 INFO L82 PathProgramCache]: Analyzing trace with hash -603243733, now seen corresponding path program 1 times [2020-10-11 13:01:44,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:44,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481513916] [2020-10-11 13:01:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:44,973 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:44,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481513916] [2020-10-11 13:01:44,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047975548] [2020-10-11 13:01:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:45,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-11 13:01:45,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:45,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:45,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-11 13:01:45,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873697036] [2020-10-11 13:01:45,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 13:01:45,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:45,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 13:01:45,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:01:45,119 INFO L87 Difference]: Start difference. First operand 18623 states and 67660 transitions. Second operand 12 states. [2020-10-11 13:01:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:45,264 INFO L93 Difference]: Finished difference Result 18607 states and 67596 transitions. [2020-10-11 13:01:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 13:01:45,265 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-11 13:01:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:45,301 INFO L225 Difference]: With dead ends: 18607 [2020-10-11 13:01:45,301 INFO L226 Difference]: Without dead ends: 18607 [2020-10-11 13:01:45,301 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:01:45,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18607 states. [2020-10-11 13:01:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18607 to 18607. [2020-10-11 13:01:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18607 states. [2020-10-11 13:01:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18607 states to 18607 states and 67596 transitions. [2020-10-11 13:01:45,903 INFO L78 Accepts]: Start accepts. Automaton has 18607 states and 67596 transitions. Word has length 35 [2020-10-11 13:01:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:45,903 INFO L481 AbstractCegarLoop]: Abstraction has 18607 states and 67596 transitions. [2020-10-11 13:01:45,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 13:01:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 18607 states and 67596 transitions. [2020-10-11 13:01:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-11 13:01:45,907 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:45,907 INFO L421 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:46,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:46,121 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:46,122 INFO L82 PathProgramCache]: Analyzing trace with hash -131017630, now seen corresponding path program 1 times [2020-10-11 13:01:46,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:46,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567440970] [2020-10-11 13:01:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:46,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567440970] [2020-10-11 13:01:46,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776508963] [2020-10-11 13:01:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:46,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-11 13:01:46,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:46,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:46,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-11 13:01:46,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036494760] [2020-10-11 13:01:46,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 13:01:46,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:46,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 13:01:46,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:01:46,378 INFO L87 Difference]: Start difference. First operand 18607 states and 67596 transitions. Second operand 14 states. [2020-10-11 13:01:46,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:46,592 INFO L93 Difference]: Finished difference Result 18575 states and 67452 transitions. [2020-10-11 13:01:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 13:01:46,594 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-11 13:01:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:46,649 INFO L225 Difference]: With dead ends: 18575 [2020-10-11 13:01:46,649 INFO L226 Difference]: Without dead ends: 18575 [2020-10-11 13:01:46,651 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:01:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18575 states. [2020-10-11 13:01:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18575 to 18575. [2020-10-11 13:01:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18575 states. [2020-10-11 13:01:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18575 states to 18575 states and 67452 transitions. [2020-10-11 13:01:47,075 INFO L78 Accepts]: Start accepts. Automaton has 18575 states and 67452 transitions. Word has length 41 [2020-10-11 13:01:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:47,075 INFO L481 AbstractCegarLoop]: Abstraction has 18575 states and 67452 transitions. [2020-10-11 13:01:47,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 13:01:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 18575 states and 67452 transitions. [2020-10-11 13:01:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-11 13:01:47,081 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:47,081 INFO L421 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:47,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-10-11 13:01:47,282 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:47,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1557656136, now seen corresponding path program 1 times [2020-10-11 13:01:47,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:47,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781888333] [2020-10-11 13:01:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:47,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781888333] [2020-10-11 13:01:47,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691590608] [2020-10-11 13:01:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:01:47,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-11 13:01:47,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:01:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:01:47,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:01:47,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-11 13:01:47,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628511579] [2020-10-11 13:01:47,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 13:01:47,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:01:47,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 13:01:47,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:01:47,606 INFO L87 Difference]: Start difference. First operand 18575 states and 67452 transitions. Second operand 16 states. [2020-10-11 13:01:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:01:47,841 INFO L93 Difference]: Finished difference Result 18511 states and 67132 transitions. [2020-10-11 13:01:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 13:01:47,842 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-11 13:01:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:01:48,111 INFO L225 Difference]: With dead ends: 18511 [2020-10-11 13:01:48,111 INFO L226 Difference]: Without dead ends: 18511 [2020-10-11 13:01:48,112 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:01:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18511 states. [2020-10-11 13:01:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18511 to 18511. [2020-10-11 13:01:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18511 states. [2020-10-11 13:01:48,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18511 states to 18511 states and 67132 transitions. [2020-10-11 13:01:48,831 INFO L78 Accepts]: Start accepts. Automaton has 18511 states and 67132 transitions. Word has length 47 [2020-10-11 13:01:48,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:01:48,832 INFO L481 AbstractCegarLoop]: Abstraction has 18511 states and 67132 transitions. [2020-10-11 13:01:48,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 13:01:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 18511 states and 67132 transitions. [2020-10-11 13:01:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-11 13:01:48,837 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:01:48,837 INFO L421 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:01:49,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:01:49,050 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:01:49,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:01:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash 230242214, now seen corresponding path program 1 times [2020-10-11 13:01:49,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:01:49,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662516031] [2020-10-11 13:01:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:01:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:01:49,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:01:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:01:49,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:01:49,101 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:01:49,101 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:01:49,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-11 13:01:49,103 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:01:49,103 WARN L371 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:01:49,104 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,116 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,117 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,118 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,119 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,120 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,121 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,122 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,123 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,123 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,124 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,124 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,124 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,124 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,125 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,125 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,125 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,126 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,127 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,127 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,127 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,127 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,128 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,128 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,128 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,128 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,129 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,129 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,129 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,129 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,130 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,130 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,130 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,130 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,131 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,131 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,131 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,131 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:01:49,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:01:49,138 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:01:49,138 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:01:49,138 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:01:49,138 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:01:49,138 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:01:49,138 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:01:49,138 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:01:49,138 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:01:49,139 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:01:49,139 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 126 transitions, 372 flow [2020-10-11 13:01:49,139 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 126 transitions, 372 flow [2020-10-11 13:01:49,140 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 128 places, 126 transitions, 372 flow [2020-10-11 13:01:50,770 INFO L129 PetriNetUnfolder]: 1812/9659 cut-off events. [2020-10-11 13:01:50,770 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2020-10-11 13:01:50,808 INFO L80 FinitePrefix]: Finished finitePrefix Result has 10744 conditions, 9659 events. 1812/9659 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 92403 event pairs, 522 based on Foata normal form. 0/8103 useless extension candidates. Maximal degree in co-relation 5322. Up to 1024 conditions per place. [2020-10-11 13:01:50,968 INFO L117 LiptonReduction]: Number of co-enabled transitions 4640 [2020-10-11 13:01:51,147 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,172 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:51,175 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,196 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:51,196 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,197 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:51,207 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,231 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:51,235 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:51,255 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:51,256 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:53,402 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:53,424 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:53,441 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,441 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:53,449 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,470 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:53,473 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:53,492 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:53,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:01:56,153 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:56,184 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,205 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:56,206 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,206 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:56,213 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,237 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:56,240 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:56,263 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:56,264 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:58,412 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,437 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:58,439 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,459 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:58,460 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,460 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:01:58,470 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:58,500 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,521 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:01:58,522 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:01:58,522 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:02:00,977 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:01,022 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,052 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:01,052 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,053 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:01,063 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,097 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:01,101 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,126 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:01,127 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:01,127 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:03,214 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:03,254 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:03,286 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,287 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:03,295 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:03,336 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:03,368 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:03,368 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:05,588 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:05,643 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:05,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,680 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:05,690 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,724 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:05,727 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:05,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:05,757 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:07,799 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:07,832 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,862 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:07,863 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,863 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:07,870 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,902 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:07,906 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,935 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:07,936 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:07,936 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:02:10,382 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-11 13:02:10,489 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-11 13:02:10,634 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,672 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,674 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,707 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,707 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,708 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:10,715 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,748 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,751 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,782 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,783 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,783 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:10,791 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,834 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,868 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,868 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:10,875 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,907 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,910 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,939 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:10,939 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:10,939 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:10,970 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,027 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,065 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:11,074 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,116 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,143 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,144 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,144 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:11,153 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,190 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,197 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,226 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,226 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:11,236 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,274 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,277 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,414 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-11 13:02:11,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:11,415 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-11 13:02:11,416 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-11 13:02:11,680 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-11 13:02:11,803 INFO L132 LiptonReduction]: Checked pairs total: 9733 [2020-10-11 13:02:11,803 INFO L134 LiptonReduction]: Total number of compositions: 104 [2020-10-11 13:02:11,804 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 40 transitions, 200 flow [2020-10-11 13:02:18,020 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 55297 states. [2020-10-11 13:02:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 55297 states. [2020-10-11 13:02:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:02:18,020 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:18,020 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:02:18,021 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:18,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:18,021 INFO L82 PathProgramCache]: Analyzing trace with hash 54894463, now seen corresponding path program 1 times [2020-10-11 13:02:18,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:18,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591480364] [2020-10-11 13:02:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:18,040 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 13:02:18,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591480364] [2020-10-11 13:02:18,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:02:18,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:02:18,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337667146] [2020-10-11 13:02:18,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:02:18,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:18,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:02:18,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:02:18,042 INFO L87 Difference]: Start difference. First operand 55297 states. Second operand 3 states. [2020-10-11 13:02:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:18,298 INFO L93 Difference]: Finished difference Result 55297 states and 222749 transitions. [2020-10-11 13:02:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:02:18,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:02:18,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:18,415 INFO L225 Difference]: With dead ends: 55297 [2020-10-11 13:02:18,415 INFO L226 Difference]: Without dead ends: 48734 [2020-10-11 13:02:18,416 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 13:02:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48734 states. [2020-10-11 13:02:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48734 to 48734. [2020-10-11 13:02:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48734 states. [2020-10-11 13:02:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48734 states to 48734 states and 198690 transitions. [2020-10-11 13:02:20,143 INFO L78 Accepts]: Start accepts. Automaton has 48734 states and 198690 transitions. Word has length 4 [2020-10-11 13:02:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:20,143 INFO L481 AbstractCegarLoop]: Abstraction has 48734 states and 198690 transitions. [2020-10-11 13:02:20,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:02:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 48734 states and 198690 transitions. [2020-10-11 13:02:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:02:20,144 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:20,144 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:20,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-11 13:02:20,144 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:20,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1411257051, now seen corresponding path program 1 times [2020-10-11 13:02:20,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:20,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550544125] [2020-10-11 13:02:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:02:20,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550544125] [2020-10-11 13:02:20,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:02:20,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:02:20,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833485363] [2020-10-11 13:02:20,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:02:20,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:20,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:02:20,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:02:20,172 INFO L87 Difference]: Start difference. First operand 48734 states and 198690 transitions. Second operand 4 states. [2020-10-11 13:02:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:23,152 INFO L93 Difference]: Finished difference Result 56827 states and 227865 transitions. [2020-10-11 13:02:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:02:23,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:02:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:23,297 INFO L225 Difference]: With dead ends: 56827 [2020-10-11 13:02:23,297 INFO L226 Difference]: Without dead ends: 56827 [2020-10-11 13:02:23,297 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:02:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56827 states. [2020-10-11 13:02:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56827 to 54781. [2020-10-11 13:02:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54781 states. [2020-10-11 13:02:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54781 states to 54781 states and 219674 transitions. [2020-10-11 13:02:24,751 INFO L78 Accepts]: Start accepts. Automaton has 54781 states and 219674 transitions. Word has length 10 [2020-10-11 13:02:24,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:24,751 INFO L481 AbstractCegarLoop]: Abstraction has 54781 states and 219674 transitions. [2020-10-11 13:02:24,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:02:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 54781 states and 219674 transitions. [2020-10-11 13:02:24,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:02:24,751 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:24,751 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:24,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-11 13:02:24,752 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:24,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:24,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1775097937, now seen corresponding path program 1 times [2020-10-11 13:02:24,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:24,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922065439] [2020-10-11 13:02:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:24,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922065439] [2020-10-11 13:02:24,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2595028] [2020-10-11 13:02:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:25,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:02:25,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:25,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:25,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-11 13:02:25,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501355709] [2020-10-11 13:02:25,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 13:02:25,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:25,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 13:02:25,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:02:25,296 INFO L87 Difference]: Start difference. First operand 54781 states and 219674 transitions. Second operand 6 states. [2020-10-11 13:02:25,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:25,546 INFO L93 Difference]: Finished difference Result 54779 states and 219669 transitions. [2020-10-11 13:02:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:02:25,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 13:02:25,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:25,678 INFO L225 Difference]: With dead ends: 54779 [2020-10-11 13:02:25,678 INFO L226 Difference]: Without dead ends: 54779 [2020-10-11 13:02:25,678 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:02:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54779 states. [2020-10-11 13:02:29,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54779 to 54779. [2020-10-11 13:02:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54779 states. [2020-10-11 13:02:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54779 states to 54779 states and 219669 transitions. [2020-10-11 13:02:30,115 INFO L78 Accepts]: Start accepts. Automaton has 54779 states and 219669 transitions. Word has length 17 [2020-10-11 13:02:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:30,115 INFO L481 AbstractCegarLoop]: Abstraction has 54779 states and 219669 transitions. [2020-10-11 13:02:30,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 13:02:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 54779 states and 219669 transitions. [2020-10-11 13:02:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:02:30,116 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:30,116 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:30,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-10-11 13:02:30,319 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:30,320 INFO L82 PathProgramCache]: Analyzing trace with hash 911691700, now seen corresponding path program 1 times [2020-10-11 13:02:30,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:30,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260403700] [2020-10-11 13:02:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:30,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260403700] [2020-10-11 13:02:30,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632471586] [2020-10-11 13:02:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:30,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:02:30,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:30,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:30,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-11 13:02:30,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210516951] [2020-10-11 13:02:30,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:02:30,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:30,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:02:30,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:02:30,484 INFO L87 Difference]: Start difference. First operand 54779 states and 219669 transitions. Second operand 8 states. [2020-10-11 13:02:30,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:30,738 INFO L93 Difference]: Finished difference Result 54775 states and 219657 transitions. [2020-10-11 13:02:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:02:30,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-11 13:02:30,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:30,865 INFO L225 Difference]: With dead ends: 54775 [2020-10-11 13:02:30,865 INFO L226 Difference]: Without dead ends: 54775 [2020-10-11 13:02:30,865 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:02:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54775 states. [2020-10-11 13:02:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54775 to 54775. [2020-10-11 13:02:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54775 states. [2020-10-11 13:02:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54775 states to 54775 states and 219657 transitions. [2020-10-11 13:02:32,847 INFO L78 Accepts]: Start accepts. Automaton has 54775 states and 219657 transitions. Word has length 23 [2020-10-11 13:02:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:32,848 INFO L481 AbstractCegarLoop]: Abstraction has 54775 states and 219657 transitions. [2020-10-11 13:02:32,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:02:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 54775 states and 219657 transitions. [2020-10-11 13:02:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-11 13:02:32,849 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:32,849 INFO L421 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:33,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2020-10-11 13:02:33,062 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:33,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1882146136, now seen corresponding path program 1 times [2020-10-11 13:02:33,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:33,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057520984] [2020-10-11 13:02:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:33,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057520984] [2020-10-11 13:02:33,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713786095] [2020-10-11 13:02:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:33,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 13:02:33,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:33,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:33,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-11 13:02:33,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758756267] [2020-10-11 13:02:33,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 13:02:33,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:33,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 13:02:33,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:02:33,249 INFO L87 Difference]: Start difference. First operand 54775 states and 219657 transitions. Second operand 10 states. [2020-10-11 13:02:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:33,507 INFO L93 Difference]: Finished difference Result 54767 states and 219629 transitions. [2020-10-11 13:02:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:02:33,508 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-11 13:02:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:33,637 INFO L225 Difference]: With dead ends: 54767 [2020-10-11 13:02:33,637 INFO L226 Difference]: Without dead ends: 54767 [2020-10-11 13:02:33,637 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:02:34,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54767 states. [2020-10-11 13:02:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54767 to 54767. [2020-10-11 13:02:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54767 states. [2020-10-11 13:02:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54767 states to 54767 states and 219629 transitions. [2020-10-11 13:02:38,045 INFO L78 Accepts]: Start accepts. Automaton has 54767 states and 219629 transitions. Word has length 29 [2020-10-11 13:02:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:38,045 INFO L481 AbstractCegarLoop]: Abstraction has 54767 states and 219629 transitions. [2020-10-11 13:02:38,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 13:02:38,045 INFO L276 IsEmpty]: Start isEmpty. Operand 54767 states and 219629 transitions. [2020-10-11 13:02:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-11 13:02:38,053 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:38,053 INFO L421 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:38,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:38,266 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:38,267 INFO L82 PathProgramCache]: Analyzing trace with hash -290777765, now seen corresponding path program 1 times [2020-10-11 13:02:38,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:38,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167350580] [2020-10-11 13:02:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:38,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167350580] [2020-10-11 13:02:38,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589174155] [2020-10-11 13:02:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:38,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-11 13:02:38,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:38,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:38,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-11 13:02:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712765617] [2020-10-11 13:02:38,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 13:02:38,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:38,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 13:02:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:02:38,490 INFO L87 Difference]: Start difference. First operand 54767 states and 219629 transitions. Second operand 12 states. [2020-10-11 13:02:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:38,766 INFO L93 Difference]: Finished difference Result 54751 states and 219565 transitions. [2020-10-11 13:02:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 13:02:38,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-11 13:02:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:38,894 INFO L225 Difference]: With dead ends: 54751 [2020-10-11 13:02:38,894 INFO L226 Difference]: Without dead ends: 54751 [2020-10-11 13:02:38,895 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:02:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54751 states. [2020-10-11 13:02:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54751 to 54751. [2020-10-11 13:02:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54751 states. [2020-10-11 13:02:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54751 states to 54751 states and 219565 transitions. [2020-10-11 13:02:40,984 INFO L78 Accepts]: Start accepts. Automaton has 54751 states and 219565 transitions. Word has length 35 [2020-10-11 13:02:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:40,984 INFO L481 AbstractCegarLoop]: Abstraction has 54751 states and 219565 transitions. [2020-10-11 13:02:40,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 13:02:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 54751 states and 219565 transitions. [2020-10-11 13:02:40,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-11 13:02:40,988 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:40,988 INFO L421 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:41,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-10-11 13:02:41,189 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash 460274813, now seen corresponding path program 1 times [2020-10-11 13:02:41,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:41,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815287024] [2020-10-11 13:02:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:41,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815287024] [2020-10-11 13:02:41,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651999855] [2020-10-11 13:02:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:41,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-11 13:02:41,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:41,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:41,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-11 13:02:41,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847137062] [2020-10-11 13:02:41,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 13:02:41,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:41,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 13:02:41,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:02:41,419 INFO L87 Difference]: Start difference. First operand 54751 states and 219565 transitions. Second operand 14 states. [2020-10-11 13:02:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:41,715 INFO L93 Difference]: Finished difference Result 54719 states and 219421 transitions. [2020-10-11 13:02:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 13:02:41,716 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-11 13:02:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:41,849 INFO L225 Difference]: With dead ends: 54719 [2020-10-11 13:02:41,850 INFO L226 Difference]: Without dead ends: 54719 [2020-10-11 13:02:41,850 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:02:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54719 states. [2020-10-11 13:02:43,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54719 to 54719. [2020-10-11 13:02:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54719 states. [2020-10-11 13:02:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54719 states to 54719 states and 219421 transitions. [2020-10-11 13:02:47,027 INFO L78 Accepts]: Start accepts. Automaton has 54719 states and 219421 transitions. Word has length 41 [2020-10-11 13:02:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:47,027 INFO L481 AbstractCegarLoop]: Abstraction has 54719 states and 219421 transitions. [2020-10-11 13:02:47,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 13:02:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 54719 states and 219421 transitions. [2020-10-11 13:02:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-11 13:02:47,034 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:47,034 INFO L421 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:47,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-10-11 13:02:47,250 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:47,250 INFO L82 PathProgramCache]: Analyzing trace with hash -964712578, now seen corresponding path program 1 times [2020-10-11 13:02:47,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:47,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058064632] [2020-10-11 13:02:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:47,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058064632] [2020-10-11 13:02:47,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576565500] [2020-10-11 13:02:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:47,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-11 13:02:47,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:47,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:47,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-11 13:02:47,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514582758] [2020-10-11 13:02:47,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 13:02:47,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:47,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 13:02:47,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:02:47,502 INFO L87 Difference]: Start difference. First operand 54719 states and 219421 transitions. Second operand 16 states. [2020-10-11 13:02:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:47,807 INFO L93 Difference]: Finished difference Result 54655 states and 219101 transitions. [2020-10-11 13:02:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 13:02:47,807 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-11 13:02:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:47,936 INFO L225 Difference]: With dead ends: 54655 [2020-10-11 13:02:47,936 INFO L226 Difference]: Without dead ends: 54655 [2020-10-11 13:02:47,936 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:02:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54655 states. [2020-10-11 13:02:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54655 to 54655. [2020-10-11 13:02:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54655 states. [2020-10-11 13:02:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54655 states to 54655 states and 219101 transitions. [2020-10-11 13:02:49,385 INFO L78 Accepts]: Start accepts. Automaton has 54655 states and 219101 transitions. Word has length 47 [2020-10-11 13:02:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:49,385 INFO L481 AbstractCegarLoop]: Abstraction has 54655 states and 219101 transitions. [2020-10-11 13:02:49,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 13:02:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 54655 states and 219101 transitions. [2020-10-11 13:02:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-11 13:02:49,397 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:49,397 INFO L421 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:49,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:49,608 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1558950686, now seen corresponding path program 1 times [2020-10-11 13:02:49,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:49,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897561704] [2020-10-11 13:02:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:49,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897561704] [2020-10-11 13:02:49,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488131014] [2020-10-11 13:02:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:02:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:02:49,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-11 13:02:49,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:02:49,925 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:02:49,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:02:49,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-11 13:02:49,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952857018] [2020-10-11 13:02:49,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-11 13:02:49,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:02:49,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-11 13:02:49,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=174, Unknown=0, NotChecked=0, Total=306 [2020-10-11 13:02:49,927 INFO L87 Difference]: Start difference. First operand 54655 states and 219101 transitions. Second operand 18 states. [2020-10-11 13:02:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:02:50,643 INFO L93 Difference]: Finished difference Result 54527 states and 218397 transitions. [2020-10-11 13:02:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 13:02:50,643 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2020-10-11 13:02:50,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:02:50,773 INFO L225 Difference]: With dead ends: 54527 [2020-10-11 13:02:50,773 INFO L226 Difference]: Without dead ends: 54527 [2020-10-11 13:02:50,773 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=174, Unknown=0, NotChecked=0, Total=306 [2020-10-11 13:02:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54527 states. [2020-10-11 13:02:52,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54527 to 54527. [2020-10-11 13:02:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54527 states. [2020-10-11 13:02:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54527 states to 54527 states and 218397 transitions. [2020-10-11 13:02:52,200 INFO L78 Accepts]: Start accepts. Automaton has 54527 states and 218397 transitions. Word has length 53 [2020-10-11 13:02:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:02:52,201 INFO L481 AbstractCegarLoop]: Abstraction has 54527 states and 218397 transitions. [2020-10-11 13:02:52,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-11 13:02:52,201 INFO L276 IsEmpty]: Start isEmpty. Operand 54527 states and 218397 transitions. [2020-10-11 13:02:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-11 13:02:52,207 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:02:52,207 INFO L421 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:02:52,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-10-11 13:02:52,414 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:02:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:02:52,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1378182391, now seen corresponding path program 1 times [2020-10-11 13:02:52,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:02:52,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521008881] [2020-10-11 13:02:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:02:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:02:52,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:02:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:02:52,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:02:52,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:02:52,464 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:02:52,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-11 13:02:52,465 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:02:52,465 WARN L371 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:02:52,465 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2020-10-11 13:02:52,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,477 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,478 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,481 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,482 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,482 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,482 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,484 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,485 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,486 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,486 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,486 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,488 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,488 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,489 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,489 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,490 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,490 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,490 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,490 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,491 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,491 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,491 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,492 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,492 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,493 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,493 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,494 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,494 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,494 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,494 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,496 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,496 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,496 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,497 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,498 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:02:52,505 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:02:52,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:02:52,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:02:52,506 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:02:52,506 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:02:52,506 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:02:52,506 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:02:52,506 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:02:52,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:02:52,508 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:02:52,508 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 132 transitions, 408 flow [2020-10-11 13:02:52,508 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 132 transitions, 408 flow [2020-10-11 13:02:52,508 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 132 transitions, 408 flow [2020-10-11 13:02:54,858 INFO L129 PetriNetUnfolder]: 3862/19406 cut-off events. [2020-10-11 13:02:54,858 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2020-10-11 13:02:54,957 INFO L80 FinitePrefix]: Finished finitePrefix Result has 21783 conditions, 19406 events. 3862/19406 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 214634 event pairs, 1291 based on Foata normal form. 0/16312 useless extension candidates. Maximal degree in co-relation 10726. Up to 2304 conditions per place. [2020-10-11 13:02:55,431 INFO L117 LiptonReduction]: Number of co-enabled transitions 5472 [2020-10-11 13:02:55,462 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:55,494 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,514 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:55,515 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,515 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:02:55,524 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,550 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:55,553 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,575 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:55,575 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:55,576 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:02:58,292 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:58,325 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:58,348 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,348 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:02:58,355 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,379 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:58,382 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:02:58,403 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:02:58,403 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:03:00,723 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:00,752 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,774 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:00,775 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,775 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:03:00,798 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,824 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:00,827 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,850 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:00,850 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:00,851 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:03:03,210 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:03,262 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,298 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:03,299 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,299 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:03,313 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,350 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:03,356 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,391 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:03,392 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:03,392 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:05,689 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,720 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:05,723 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,751 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:05,752 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,753 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:05,760 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:05,802 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,828 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:05,829 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:05,830 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:08,247 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-11 13:03:08,331 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,364 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:08,368 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,400 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:08,400 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,401 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:08,408 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:08,446 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,475 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:08,476 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:08,477 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:10,611 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,645 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:10,650 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:10,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,680 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:10,688 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,726 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:10,729 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,762 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:03:10,762 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:03:10,763 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:03:13,055 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-11 13:03:13,366 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-11 13:03:13,469 INFO L132 LiptonReduction]: Checked pairs total: 11917 [2020-10-11 13:03:13,469 INFO L134 LiptonReduction]: Total number of compositions: 104 [2020-10-11 13:03:13,469 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 43 transitions, 230 flow [2020-10-11 13:03:56,123 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 163089 states. [2020-10-11 13:03:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 163089 states. [2020-10-11 13:03:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:03:56,124 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:03:56,124 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:03:56,124 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:03:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:03:56,125 INFO L82 PathProgramCache]: Analyzing trace with hash 62348159, now seen corresponding path program 1 times [2020-10-11 13:03:56,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:03:56,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221093801] [2020-10-11 13:03:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:03:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:03:56,134 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 13:03:56,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221093801] [2020-10-11 13:03:56,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:03:56,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:03:56,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803280491] [2020-10-11 13:03:56,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:03:56,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:03:56,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:03:56,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:03:56,136 INFO L87 Difference]: Start difference. First operand 163089 states. Second operand 3 states. [2020-10-11 13:03:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:03:56,980 INFO L93 Difference]: Finished difference Result 163089 states and 717318 transitions. [2020-10-11 13:03:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:03:56,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:03:56,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:03:57,437 INFO L225 Difference]: With dead ends: 163089 [2020-10-11 13:03:57,437 INFO L226 Difference]: Without dead ends: 143404 [2020-10-11 13:03:57,438 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 13:04:06,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143404 states. [2020-10-11 13:04:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143404 to 143404. [2020-10-11 13:04:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143404 states. [2020-10-11 13:04:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143404 states to 143404 states and 638584 transitions. [2020-10-11 13:04:09,586 INFO L78 Accepts]: Start accepts. Automaton has 143404 states and 638584 transitions. Word has length 4 [2020-10-11 13:04:09,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:04:09,586 INFO L481 AbstractCegarLoop]: Abstraction has 143404 states and 638584 transitions. [2020-10-11 13:04:09,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 13:04:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 143404 states and 638584 transitions. [2020-10-11 13:04:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 13:04:09,586 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:04:09,586 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:04:09,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-11 13:04:09,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:04:09,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:04:09,587 INFO L82 PathProgramCache]: Analyzing trace with hash 288657511, now seen corresponding path program 1 times [2020-10-11 13:04:09,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:04:09,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692968083] [2020-10-11 13:04:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:04:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-11 13:04:09,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692968083] [2020-10-11 13:04:09,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:04:09,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 13:04:09,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828934438] [2020-10-11 13:04:09,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 13:04:09,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:04:09,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 13:04:09,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:04:09,611 INFO L87 Difference]: Start difference. First operand 143404 states and 638584 transitions. Second operand 4 states. [2020-10-11 13:04:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:04:10,478 INFO L93 Difference]: Finished difference Result 166667 states and 731394 transitions. [2020-10-11 13:04:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:04:10,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-11 13:04:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:04:10,959 INFO L225 Difference]: With dead ends: 166667 [2020-10-11 13:04:10,959 INFO L226 Difference]: Without dead ends: 166667 [2020-10-11 13:04:10,959 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 13:04:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166667 states. [2020-10-11 13:04:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166667 to 162061. [2020-10-11 13:04:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162061 states. [2020-10-11 13:04:27,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162061 states to 162061 states and 710659 transitions. [2020-10-11 13:04:27,050 INFO L78 Accepts]: Start accepts. Automaton has 162061 states and 710659 transitions. Word has length 10 [2020-10-11 13:04:27,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:04:27,050 INFO L481 AbstractCegarLoop]: Abstraction has 162061 states and 710659 transitions. [2020-10-11 13:04:27,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 13:04:27,050 INFO L276 IsEmpty]: Start isEmpty. Operand 162061 states and 710659 transitions. [2020-10-11 13:04:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 13:04:27,050 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:04:27,051 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:04:27,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-11 13:04:27,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:04:27,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:04:27,051 INFO L82 PathProgramCache]: Analyzing trace with hash 941132211, now seen corresponding path program 1 times [2020-10-11 13:04:27,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:04:27,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838637189] [2020-10-11 13:04:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:04:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:27,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:27,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838637189] [2020-10-11 13:04:27,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714288549] [2020-10-11 13:04:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:04:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:27,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-11 13:04:27,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:04:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:27,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:04:27,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-11 13:04:27,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548187690] [2020-10-11 13:04:27,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 13:04:27,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:04:27,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 13:04:27,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:04:27,199 INFO L87 Difference]: Start difference. First operand 162061 states and 710659 transitions. Second operand 6 states. [2020-10-11 13:04:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:04:28,045 INFO L93 Difference]: Finished difference Result 162059 states and 710654 transitions. [2020-10-11 13:04:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 13:04:28,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 13:04:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:04:28,519 INFO L225 Difference]: With dead ends: 162059 [2020-10-11 13:04:28,520 INFO L226 Difference]: Without dead ends: 162059 [2020-10-11 13:04:28,520 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-11 13:04:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162059 states. [2020-10-11 13:04:38,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162059 to 162059. [2020-10-11 13:04:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162059 states. [2020-10-11 13:04:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162059 states to 162059 states and 710654 transitions. [2020-10-11 13:04:38,711 INFO L78 Accepts]: Start accepts. Automaton has 162059 states and 710654 transitions. Word has length 17 [2020-10-11 13:04:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:04:38,711 INFO L481 AbstractCegarLoop]: Abstraction has 162059 states and 710654 transitions. [2020-10-11 13:04:38,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 13:04:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 162059 states and 710654 transitions. [2020-10-11 13:04:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-11 13:04:38,712 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:04:38,712 INFO L421 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:04:38,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:04:38,913 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:04:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:04:38,914 INFO L82 PathProgramCache]: Analyzing trace with hash -220199302, now seen corresponding path program 1 times [2020-10-11 13:04:38,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:04:38,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813038395] [2020-10-11 13:04:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:04:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:38,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813038395] [2020-10-11 13:04:38,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119907218] [2020-10-11 13:04:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:04:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:39,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-11 13:04:39,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:04:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:39,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:04:39,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-11 13:04:39,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632752768] [2020-10-11 13:04:39,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 13:04:39,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:04:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 13:04:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:04:39,077 INFO L87 Difference]: Start difference. First operand 162059 states and 710654 transitions. Second operand 8 states. [2020-10-11 13:04:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:04:39,917 INFO L93 Difference]: Finished difference Result 162055 states and 710642 transitions. [2020-10-11 13:04:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 13:04:39,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-11 13:04:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:04:40,384 INFO L225 Difference]: With dead ends: 162055 [2020-10-11 13:04:40,385 INFO L226 Difference]: Without dead ends: 162055 [2020-10-11 13:04:40,385 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-10-11 13:04:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162055 states. [2020-10-11 13:04:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162055 to 162055. [2020-10-11 13:04:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162055 states. [2020-10-11 13:04:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162055 states to 162055 states and 710642 transitions. [2020-10-11 13:04:55,534 INFO L78 Accepts]: Start accepts. Automaton has 162055 states and 710642 transitions. Word has length 23 [2020-10-11 13:04:55,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:04:55,534 INFO L481 AbstractCegarLoop]: Abstraction has 162055 states and 710642 transitions. [2020-10-11 13:04:55,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 13:04:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 162055 states and 710642 transitions. [2020-10-11 13:04:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-11 13:04:55,535 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:04:55,535 INFO L421 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:04:55,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-10-11 13:04:55,736 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:04:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:04:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash -406571168, now seen corresponding path program 1 times [2020-10-11 13:04:55,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:04:55,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232486566] [2020-10-11 13:04:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:04:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:55,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232486566] [2020-10-11 13:04:55,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269530613] [2020-10-11 13:04:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:04:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:04:55,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-11 13:04:55,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:04:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:04:55,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:04:55,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-11 13:04:55,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559784418] [2020-10-11 13:04:55,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 13:04:55,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:04:55,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 13:04:55,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:04:55,929 INFO L87 Difference]: Start difference. First operand 162055 states and 710642 transitions. Second operand 10 states. [2020-10-11 13:04:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:04:56,749 INFO L93 Difference]: Finished difference Result 162047 states and 710614 transitions. [2020-10-11 13:04:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 13:04:56,750 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-11 13:04:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:04:57,171 INFO L225 Difference]: With dead ends: 162047 [2020-10-11 13:04:57,171 INFO L226 Difference]: Without dead ends: 162047 [2020-10-11 13:04:57,172 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-10-11 13:05:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162047 states. [2020-10-11 13:05:06,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162047 to 162047. [2020-10-11 13:05:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162047 states. [2020-10-11 13:05:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162047 states to 162047 states and 710614 transitions. [2020-10-11 13:05:06,832 INFO L78 Accepts]: Start accepts. Automaton has 162047 states and 710614 transitions. Word has length 29 [2020-10-11 13:05:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:05:06,832 INFO L481 AbstractCegarLoop]: Abstraction has 162047 states and 710614 transitions. [2020-10-11 13:05:06,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 13:05:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 162047 states and 710614 transitions. [2020-10-11 13:05:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-11 13:05:06,833 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:05:06,833 INFO L421 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:05:07,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:07,034 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:05:07,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:05:07,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1531922725, now seen corresponding path program 1 times [2020-10-11 13:05:07,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:05:07,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618039771] [2020-10-11 13:05:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:05:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:07,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618039771] [2020-10-11 13:05:07,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709741593] [2020-10-11 13:05:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:07,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-11 13:05:07,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:05:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:07,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:05:07,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-11 13:05:07,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659628505] [2020-10-11 13:05:07,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 13:05:07,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:05:07,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 13:05:07,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:05:07,287 INFO L87 Difference]: Start difference. First operand 162047 states and 710614 transitions. Second operand 12 states. [2020-10-11 13:05:14,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:05:14,977 INFO L93 Difference]: Finished difference Result 162031 states and 710550 transitions. [2020-10-11 13:05:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 13:05:14,977 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-11 13:05:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:05:15,492 INFO L225 Difference]: With dead ends: 162031 [2020-10-11 13:05:15,493 INFO L226 Difference]: Without dead ends: 162031 [2020-10-11 13:05:15,493 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-10-11 13:05:19,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162031 states. [2020-10-11 13:05:22,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162031 to 162031. [2020-10-11 13:05:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162031 states. [2020-10-11 13:05:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162031 states to 162031 states and 710550 transitions. [2020-10-11 13:05:22,678 INFO L78 Accepts]: Start accepts. Automaton has 162031 states and 710550 transitions. Word has length 35 [2020-10-11 13:05:22,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:05:22,678 INFO L481 AbstractCegarLoop]: Abstraction has 162031 states and 710550 transitions. [2020-10-11 13:05:22,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 13:05:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 162031 states and 710550 transitions. [2020-10-11 13:05:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-11 13:05:22,681 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:05:22,681 INFO L421 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:05:22,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-10-11 13:05:22,882 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:05:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:05:22,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1050224503, now seen corresponding path program 1 times [2020-10-11 13:05:22,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:05:22,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444015498] [2020-10-11 13:05:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:05:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:22,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444015498] [2020-10-11 13:05:22,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196479766] [2020-10-11 13:05:22,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:23,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-11 13:05:23,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:05:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:24,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:05:24,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-11 13:05:24,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632917854] [2020-10-11 13:05:24,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 13:05:24,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:05:24,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 13:05:24,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:05:24,346 INFO L87 Difference]: Start difference. First operand 162031 states and 710550 transitions. Second operand 14 states. [2020-10-11 13:05:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:05:25,221 INFO L93 Difference]: Finished difference Result 161999 states and 710406 transitions. [2020-10-11 13:05:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 13:05:25,222 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-11 13:05:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:05:25,680 INFO L225 Difference]: With dead ends: 161999 [2020-10-11 13:05:25,681 INFO L226 Difference]: Without dead ends: 161999 [2020-10-11 13:05:25,681 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-11 13:05:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161999 states. [2020-10-11 13:05:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161999 to 161999. [2020-10-11 13:05:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161999 states. [2020-10-11 13:05:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161999 states to 161999 states and 710406 transitions. [2020-10-11 13:05:40,664 INFO L78 Accepts]: Start accepts. Automaton has 161999 states and 710406 transitions. Word has length 41 [2020-10-11 13:05:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:05:40,664 INFO L481 AbstractCegarLoop]: Abstraction has 161999 states and 710406 transitions. [2020-10-11 13:05:40,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 13:05:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 161999 states and 710406 transitions. [2020-10-11 13:05:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-11 13:05:40,669 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:05:40,669 INFO L421 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:05:40,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:40,871 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:05:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:05:40,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1190654540, now seen corresponding path program 1 times [2020-10-11 13:05:40,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:05:40,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762948576] [2020-10-11 13:05:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:05:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:40,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762948576] [2020-10-11 13:05:40,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881085352] [2020-10-11 13:05:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:41,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-11 13:05:41,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:05:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:41,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:05:41,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-11 13:05:41,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463113598] [2020-10-11 13:05:41,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 13:05:41,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:05:41,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 13:05:41,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:05:41,182 INFO L87 Difference]: Start difference. First operand 161999 states and 710406 transitions. Second operand 16 states. [2020-10-11 13:05:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:05:42,805 INFO L93 Difference]: Finished difference Result 161935 states and 710086 transitions. [2020-10-11 13:05:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 13:05:42,805 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-11 13:05:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:05:43,301 INFO L225 Difference]: With dead ends: 161935 [2020-10-11 13:05:43,301 INFO L226 Difference]: Without dead ends: 161935 [2020-10-11 13:05:43,302 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-10-11 13:05:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161935 states. [2020-10-11 13:05:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161935 to 161935. [2020-10-11 13:05:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161935 states. [2020-10-11 13:05:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161935 states to 161935 states and 710086 transitions. [2020-10-11 13:05:58,371 INFO L78 Accepts]: Start accepts. Automaton has 161935 states and 710086 transitions. Word has length 47 [2020-10-11 13:05:58,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:05:58,371 INFO L481 AbstractCegarLoop]: Abstraction has 161935 states and 710086 transitions. [2020-10-11 13:05:58,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 13:05:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 161935 states and 710086 transitions. [2020-10-11 13:05:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-11 13:05:58,380 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:05:58,380 INFO L421 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:05:58,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-10-11 13:05:58,581 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:05:58,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:05:58,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1789072174, now seen corresponding path program 1 times [2020-10-11 13:05:58,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:05:58,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609849799] [2020-10-11 13:05:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:05:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:58,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609849799] [2020-10-11 13:05:58,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845400043] [2020-10-11 13:05:58,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:05:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:05:58,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-11 13:05:58,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:05:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:05:58,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:05:58,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-11 13:05:58,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81287943] [2020-10-11 13:05:58,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-11 13:05:58,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:05:58,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-11 13:05:58,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-10-11 13:05:58,991 INFO L87 Difference]: Start difference. First operand 161935 states and 710086 transitions. Second operand 18 states. [2020-10-11 13:06:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:06:00,151 INFO L93 Difference]: Finished difference Result 161807 states and 709382 transitions. [2020-10-11 13:06:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 13:06:00,152 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2020-10-11 13:06:00,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:06:00,607 INFO L225 Difference]: With dead ends: 161807 [2020-10-11 13:06:00,607 INFO L226 Difference]: Without dead ends: 161807 [2020-10-11 13:06:00,607 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-10-11 13:06:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161807 states. [2020-10-11 13:06:10,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161807 to 161807. [2020-10-11 13:06:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161807 states. [2020-10-11 13:06:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161807 states to 161807 states and 709382 transitions. [2020-10-11 13:06:10,937 INFO L78 Accepts]: Start accepts. Automaton has 161807 states and 709382 transitions. Word has length 53 [2020-10-11 13:06:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:06:10,937 INFO L481 AbstractCegarLoop]: Abstraction has 161807 states and 709382 transitions. [2020-10-11 13:06:10,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-11 13:06:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 161807 states and 709382 transitions. [2020-10-11 13:06:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-11 13:06:10,955 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:06:10,955 INFO L421 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:06:11,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:06:11,162 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:06:11,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:06:11,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1684547567, now seen corresponding path program 1 times [2020-10-11 13:06:11,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:06:11,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218486325] [2020-10-11 13:06:11,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:06:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:06:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:06:11,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218486325] [2020-10-11 13:06:11,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613455552] [2020-10-11 13:06:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-11 13:06:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:06:11,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-11 13:06:11,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-11 13:06:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-11 13:06:11,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-11 13:06:11,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2020-10-11 13:06:11,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974004667] [2020-10-11 13:06:11,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-11 13:06:11,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:06:11,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-11 13:06:11,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-10-11 13:06:11,501 INFO L87 Difference]: Start difference. First operand 161807 states and 709382 transitions. Second operand 20 states. [2020-10-11 13:06:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:06:12,402 INFO L93 Difference]: Finished difference Result 161551 states and 707846 transitions. [2020-10-11 13:06:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 13:06:12,403 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2020-10-11 13:06:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:06:12,898 INFO L225 Difference]: With dead ends: 161551 [2020-10-11 13:06:12,898 INFO L226 Difference]: Without dead ends: 161551 [2020-10-11 13:06:12,899 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-10-11 13:06:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161551 states. [2020-10-11 13:06:27,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161551 to 161551. [2020-10-11 13:06:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161551 states. [2020-10-11 13:06:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161551 states to 161551 states and 707846 transitions. [2020-10-11 13:06:28,308 INFO L78 Accepts]: Start accepts. Automaton has 161551 states and 707846 transitions. Word has length 59 [2020-10-11 13:06:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 13:06:28,309 INFO L481 AbstractCegarLoop]: Abstraction has 161551 states and 707846 transitions. [2020-10-11 13:06:28,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-11 13:06:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 161551 states and 707846 transitions. [2020-10-11 13:06:28,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-11 13:06:28,319 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:06:28,319 INFO L421 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 13:06:28,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-10-11 13:06:28,520 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:06:28,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:06:28,521 INFO L82 PathProgramCache]: Analyzing trace with hash 58988336, now seen corresponding path program 1 times [2020-10-11 13:06:28,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:06:28,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76435496] [2020-10-11 13:06:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:06:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:06:28,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:06:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 13:06:28,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 13:06:28,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 13:06:28,578 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 13:06:28,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-11 13:06:28,578 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:06:28,578 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-11 13:06:28,579 WARN L371 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-11 13:06:28,579 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2020-10-11 13:06:28,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,590 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,590 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,593 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,596 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,597 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,598 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,600 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,600 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,600 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,600 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,601 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,601 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,601 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,601 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,602 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,603 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,603 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,603 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,604 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,604 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,604 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,604 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,605 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,605 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,606 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,606 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,607 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,607 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,607 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,607 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,608 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,608 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,609 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,609 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,610 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,610 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,610 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,610 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,611 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,611 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,611 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,611 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 13:06:28,618 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-11 13:06:28,618 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 13:06:28,618 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 13:06:28,618 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 13:06:28,618 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 13:06:28,619 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 13:06:28,619 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 13:06:28,619 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 13:06:28,619 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 13:06:28,620 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 13:06:28,620 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 138 transitions, 446 flow [2020-10-11 13:06:28,620 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 138 transitions, 446 flow [2020-10-11 13:06:28,620 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 142 places, 138 transitions, 446 flow [2020-10-11 13:06:34,520 INFO L129 PetriNetUnfolder]: 8216/39137 cut-off events. [2020-10-11 13:06:34,520 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2020-10-11 13:06:34,887 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44343 conditions, 39137 events. 8216/39137 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 484728 event pairs, 3084 based on Foata normal form. 0/32969 useless extension candidates. Maximal degree in co-relation 21763. Up to 5120 conditions per place. [2020-10-11 13:06:35,715 INFO L117 LiptonReduction]: Number of co-enabled transitions 6360 [2020-10-11 13:06:36,402 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,422 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:36,425 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:36,442 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,443 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:06:36,449 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:36,470 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,487 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:36,488 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:36,488 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:06:38,525 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,547 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:38,551 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,568 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:38,569 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,569 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:06:38,576 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,604 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:38,607 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:38,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:38,624 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-11 13:06:41,235 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:41,267 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,289 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:41,290 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,290 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:41,299 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,327 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:41,330 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,352 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:41,353 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:41,353 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:44,025 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-10-11 13:06:44,146 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:44,175 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,201 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:44,202 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,202 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:44,209 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,238 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:44,241 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:44,266 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:44,266 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:46,628 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:46,656 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,680 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:46,681 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,681 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:46,698 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,727 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:46,730 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,755 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:46,756 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:46,756 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:48,862 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,893 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:48,897 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:48,923 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,924 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:48,932 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:48,964 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:48,988 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:48,988 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-11 13:06:51,254 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,286 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:51,290 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,319 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:51,320 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,320 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:06:51,329 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,365 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:51,369 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,398 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:51,399 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:51,399 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:06:53,425 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,462 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:53,469 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:53,498 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,498 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:06:53,507 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,543 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:53,546 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,572 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-11 13:06:53,573 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-11 13:06:53,574 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-11 13:06:55,843 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-11 13:06:56,154 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-11 13:06:56,258 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-11 13:06:56,263 INFO L132 LiptonReduction]: Checked pairs total: 14288 [2020-10-11 13:06:56,263 INFO L134 LiptonReduction]: Total number of compositions: 109 [2020-10-11 13:06:56,263 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 46 transitions, 262 flow [2020-10-11 13:10:48,334 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 483649 states. [2020-10-11 13:10:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 483649 states. [2020-10-11 13:10:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-11 13:10:48,334 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 13:10:48,335 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-11 13:10:48,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 13:10:48,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 13:10:48,335 INFO L82 PathProgramCache]: Analyzing trace with hash 70132824, now seen corresponding path program 1 times [2020-10-11 13:10:48,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 13:10:48,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63138840] [2020-10-11 13:10:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 13:10:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 13:10:48,356 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 13:10:48,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63138840] [2020-10-11 13:10:48,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 13:10:48,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 13:10:48,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304919227] [2020-10-11 13:10:48,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 13:10:48,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 13:10:48,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 13:10:48,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 13:10:48,358 INFO L87 Difference]: Start difference. First operand 483649 states. Second operand 3 states. [2020-10-11 13:10:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 13:10:53,643 INFO L93 Difference]: Finished difference Result 483649 states and 2306323 transitions. [2020-10-11 13:10:53,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 13:10:53,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-11 13:10:53,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 13:10:55,237 INFO L225 Difference]: With dead ends: 483649 [2020-10-11 13:10:55,238 INFO L226 Difference]: Without dead ends: 424598 [2020-10-11 13:10:55,238 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 13:11:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424598 states. Received shutdown request... [2020-10-11 13:11:35,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-11 13:11:35,256 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-11 13:11:35,259 WARN L235 ceAbstractionStarter]: Timeout [2020-10-11 13:11:35,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:11:35 BasicIcfg [2020-10-11 13:11:35,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 13:11:35,260 INFO L168 Benchmark]: Toolchain (without parser) took 735884.86 ms. Allocated memory was 255.9 MB in the beginning and 6.9 GB in the end (delta: 6.6 GB). Free memory was 209.6 MB in the beginning and 3.8 GB in the end (delta: -3.6 GB). Peak memory consumption was 5.5 GB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,261 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 233.1 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 936.44 ms. Allocated memory was 255.9 MB in the beginning and 325.1 MB in the end (delta: 69.2 MB). Free memory was 208.8 MB in the beginning and 241.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 46.6 MB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.93 ms. Allocated memory is still 325.1 MB. Free memory was 241.8 MB in the beginning and 239.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,261 INFO L168 Benchmark]: Boogie Preprocessor took 32.86 ms. Allocated memory is still 325.1 MB. Free memory was 239.3 MB in the beginning and 237.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,261 INFO L168 Benchmark]: RCFGBuilder took 509.51 ms. Allocated memory is still 325.1 MB. Free memory was 237.6 MB in the beginning and 211.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,262 INFO L168 Benchmark]: TraceAbstraction took 734337.54 ms. Allocated memory was 325.1 MB in the beginning and 6.9 GB in the end (delta: 6.5 GB). Free memory was 211.1 MB in the beginning and 3.8 GB in the end (delta: -3.6 GB). Peak memory consumption was 5.4 GB. Max. memory is 14.2 GB. [2020-10-11 13:11:35,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 233.1 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 936.44 ms. Allocated memory was 255.9 MB in the beginning and 325.1 MB in the end (delta: 69.2 MB). Free memory was 208.8 MB in the beginning and 241.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 46.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 61.93 ms. Allocated memory is still 325.1 MB. Free memory was 241.8 MB in the beginning and 239.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 32.86 ms. Allocated memory is still 325.1 MB. Free memory was 239.3 MB in the beginning and 237.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 509.51 ms. Allocated memory is still 325.1 MB. Free memory was 237.6 MB in the beginning and 211.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 734337.54 ms. Allocated memory was 325.1 MB in the beginning and 6.9 GB in the end (delta: 6.5 GB). Free memory was 211.1 MB in the beginning and 3.8 GB in the end (delta: -3.6 GB). Peak memory consumption was 5.4 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 230 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 6 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 13.4s, 9 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 15.5s, 79 PlacesBefore, 18 PlacesAfterwards, 84 TransitionsBefore, 17 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 83 TotalNumberOfCompositions, 432 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 553 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 6 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 13.5s, 22 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 15.7s, 86 PlacesBefore, 24 PlacesAfterwards, 90 TransitionsBefore, 22 TransitionsAfterwards, 824 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 85 TotalNumberOfCompositions, 1197 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 847 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 6 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 13.7s, 41 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 15.8s, 93 PlacesBefore, 28 PlacesAfterwards, 96 TransitionsBefore, 25 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 90 TotalNumberOfCompositions, 2069 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1251 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 8 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 17.7s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 19.9s, 100 PlacesBefore, 32 PlacesAfterwards, 102 TransitionsBefore, 28 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 90 TotalNumberOfCompositions, 3489 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1652 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 20 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 7 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 18.6s, 118 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 20.9s, 107 PlacesBefore, 36 PlacesAfterwards, 108 TransitionsBefore, 31 TransitionsAfterwards, 2480 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 10 ConcurrentYvCompositions, 6 ChoiceCompositions, 93 TotalNumberOfCompositions, 4239 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2249 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 9 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 19.9s, 122 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 22.3s, 114 PlacesBefore, 40 PlacesAfterwards, 114 TransitionsBefore, 34 TransitionsAfterwards, 3144 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 10 ConcurrentYvCompositions, 6 ChoiceCompositions, 96 TotalNumberOfCompositions, 5960 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2693 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 6 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 13.2s, 148 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 16.4s, 121 PlacesBefore, 44 PlacesAfterwards, 120 TransitionsBefore, 37 TransitionsAfterwards, 3864 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 101 TotalNumberOfCompositions, 7691 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3341 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 8 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 18.2s, 208 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 22.6s, 128 PlacesBefore, 48 PlacesAfterwards, 126 TransitionsBefore, 40 TransitionsAfterwards, 4640 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 104 TotalNumberOfCompositions, 9733 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3949 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 7 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 15.3s, 242 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 20.9s, 135 PlacesBefore, 52 PlacesAfterwards, 132 TransitionsBefore, 43 TransitionsAfterwards, 5472 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 104 TotalNumberOfCompositions, 11917 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4529 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 8 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 17.3s, 298 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 27.6s, 142 PlacesBefore, 56 PlacesAfterwards, 138 TransitionsBefore, 46 TransitionsAfterwards, 6360 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 10 ConcurrentYvCompositions, 6 ChoiceCompositions, 109 TotalNumberOfCompositions, 14288 MoverChecksTotal - TimeoutResultAtElement [Line: 1092]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1092). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 10 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 733.9s, OverallIterations: 59, TraceHistogramMax: 10, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 480.6s, HoareTripleCheckerStatistics: 1551 SDtfs, 2826 SDslu, 3357 SDs, 0 SdLazy, 1776 SolverSat, 157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1147 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483649occurred 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: 198.1s AutomataMinimizationTime, 50 MinimizatonAttempts, 9018 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2375 NumberOfCodeBlocks, 2375 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1980 ConstructedInterpolants, 0 QuantifiedInterpolants, 330366 SizeOfPredicates, 31 NumberOfNonLiveVariables, 4780 ConjunctsInSsa, 196 ConjunctsInUnsatCore, 81 InterpolantComputations, 19 PerfectInterpolantSequences, 152/2597 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 could not prove your program: Timeout Completed graceful shutdown