/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 0.1.25-7bb8cbd [2020-10-15 16:28:17,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 16:28:17,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 16:28:17,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 16:28:17,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 16:28:17,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 16:28:17,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 16:28:17,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 16:28:17,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 16:28:17,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 16:28:17,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 16:28:17,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 16:28:17,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 16:28:17,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 16:28:17,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 16:28:17,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 16:28:17,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 16:28:17,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 16:28:17,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 16:28:17,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 16:28:17,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 16:28:17,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 16:28:17,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 16:28:17,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 16:28:17,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 16:28:17,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 16:28:17,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 16:28:17,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 16:28:17,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 16:28:17,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 16:28:17,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 16:28:17,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 16:28:17,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 16:28:17,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 16:28:17,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 16:28:17,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 16:28:17,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 16:28:17,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 16:28:17,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 16:28:17,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 16:28:17,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 16:28:17,278 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 [2020-10-15 16:28:17,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 16:28:17,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 16:28:17,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 16:28:17,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 16:28:17,303 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 16:28:17,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 16:28:17,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 16:28:17,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 16:28:17,305 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 16:28:17,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 16:28:17,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 16:28:17,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 16:28:17,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 16:28:17,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 16:28:17,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 16:28:17,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 16:28:17,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:28:17,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 16:28:17,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 16:28:17,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 16:28:17,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 16:28:17,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 16:28:17,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 16:28:17,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 16:28:17,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 16:28:17,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 16:28:17,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 16:28:17,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 16:28:17,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 16:28:17,645 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 16:28:17,646 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2020-10-15 16:28:17,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d168c2f0/7e602bbfceeb42f2ac70e59d71f08e59/FLAGe0ec65bb1 [2020-10-15 16:28:18,262 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 16:28:18,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2020-10-15 16:28:18,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d168c2f0/7e602bbfceeb42f2ac70e59d71f08e59/FLAGe0ec65bb1 [2020-10-15 16:28:18,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d168c2f0/7e602bbfceeb42f2ac70e59d71f08e59 [2020-10-15 16:28:18,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 16:28:18,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 16:28:18,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 16:28:18,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 16:28:18,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 16:28:18,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:18" (1/1) ... [2020-10-15 16:28:18,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a3155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:18, skipping insertion in model container [2020-10-15 16:28:18,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:18" (1/1) ... [2020-10-15 16:28:18,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 16:28:18,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 16:28:19,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:28:19,186 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 16:28:19,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:28:19,421 INFO L208 MainTranslator]: Completed translation [2020-10-15 16:28:19,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19 WrapperNode [2020-10-15 16:28:19,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 16:28:19,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 16:28:19,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 16:28:19,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 16:28:19,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 16:28:19,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 16:28:19,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 16:28:19,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 16:28:19,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (1/1) ... [2020-10-15 16:28:19,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 16:28:19,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 16:28:19,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 16:28:19,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 16:28:19,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (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 [2020-10-15 16:28:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 16:28:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 16:28:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 16:28:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 16:28:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 16:28:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 16:28:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 16:28:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-10-15 16:28:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-10-15 16:28:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 16:28:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 16:28:19,581 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 16:28:19,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 16:28:19,986 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-15 16:28:19,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:19 BoogieIcfgContainer [2020-10-15 16:28:19,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 16:28:19,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 16:28:19,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 16:28:19,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 16:28:19,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:28:18" (1/3) ... [2020-10-15 16:28:19,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1922110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:19, skipping insertion in model container [2020-10-15 16:28:19,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:19" (2/3) ... [2020-10-15 16:28:19,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1922110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:19, skipping insertion in model container [2020-10-15 16:28:19,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:19" (3/3) ... [2020-10-15 16:28:19,998 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2020-10-15 16:28:20,010 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 16:28:20,010 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 16:28:20,019 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 16:28:20,020 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 16:28:20,046 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,046 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,046 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,047 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,047 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,048 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,052 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,052 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,052 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,053 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:20,074 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:28:20,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:28:20,094 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:28:20,094 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:28:20,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:28:20,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:28:20,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:28:20,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:28:20,095 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:28:20,109 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:28:20,112 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 84 transitions, 176 flow [2020-10-15 16:28:20,115 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 84 transitions, 176 flow [2020-10-15 16:28:20,117 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 84 transitions, 176 flow [2020-10-15 16:28:20,177 INFO L129 PetriNetUnfolder]: 13/121 cut-off events. [2020-10-15 16:28:20,177 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-15 16:28:20,182 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. [2020-10-15 16:28:20,185 INFO L117 LiptonReduction]: Number of co-enabled transitions 344 [2020-10-15 16:28:20,314 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,345 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:20,352 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:20,377 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,378 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:20,397 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:20,441 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,465 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:20,467 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:20,467 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:22,696 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,721 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:22,727 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,748 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:22,749 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,750 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:22,765 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,789 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:22,794 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,814 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:22,816 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:22,816 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:25,235 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,268 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:25,272 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,300 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:25,302 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,302 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:25,317 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,352 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:25,358 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,383 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:25,384 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:25,385 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:27,553 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,589 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:27,593 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:27,625 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,625 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:27,641 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:27,673 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:27,696 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:27,697 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:29,895 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:29,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:29,938 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:29,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:29,973 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:29,974 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:29,990 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:30,028 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:30,037 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:30,070 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:30,072 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:30,072 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:32,349 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:32,396 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:32,435 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,435 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:32,448 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:32,489 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:32,526 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:32,526 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:35,113 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-15 16:28:35,452 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-15 16:28:35,560 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-15 16:28:35,576 INFO L132 LiptonReduction]: Checked pairs total: 432 [2020-10-15 16:28:35,577 INFO L134 LiptonReduction]: Total number of compositions: 83 [2020-10-15 16:28:35,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 17 transitions, 42 flow [2020-10-15 16:28:35,609 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36 states. [2020-10-15 16:28:35,611 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-15 16:28:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:28:35,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:35,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:28:35,622 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:35,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:35,627 INFO L82 PathProgramCache]: Analyzing trace with hash 10051566, now seen corresponding path program 1 times [2020-10-15 16:28:35,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:35,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448017482] [2020-10-15 16:28:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:35,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:35,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448017482] [2020-10-15 16:28:35,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:35,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:28:35,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613528235] [2020-10-15 16:28:35,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:28:35,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:35,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:28:35,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:35,829 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-10-15 16:28:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:35,902 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2020-10-15 16:28:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:28:35,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:28:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:35,916 INFO L225 Difference]: With dead ends: 36 [2020-10-15 16:28:35,916 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 16:28:35,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 16:28:35,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 16:28:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 16:28:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-15 16:28:35,972 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 4 [2020-10-15 16:28:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:35,973 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-15 16:28:35,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:28:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-15 16:28:35,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 16:28:35,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:35,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:35,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 16:28:35,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:35,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:35,975 INFO L82 PathProgramCache]: Analyzing trace with hash -352775593, now seen corresponding path program 1 times [2020-10-15 16:28:35,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:35,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453747693] [2020-10-15 16:28:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:28:36,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453747693] [2020-10-15 16:28:36,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:36,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:28:36,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423172205] [2020-10-15 16:28:36,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:28:36,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:36,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:28:36,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:28:36,074 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 4 states. [2020-10-15 16:28:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:36,111 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-10-15 16:28:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:28:36,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 16:28:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:36,113 INFO L225 Difference]: With dead ends: 28 [2020-10-15 16:28:36,113 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 16:28:36,114 INFO L677 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 [2020-10-15 16:28:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 16:28:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-15 16:28:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 16:28:36,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-15 16:28:36,119 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 9 [2020-10-15 16:28:36,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:36,120 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-15 16:28:36,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:28:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-15 16:28:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:28:36,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:36,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-15 16:28:36,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 16:28:36,121 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:36,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1949275916, now seen corresponding path program 1 times [2020-10-15 16:28:36,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:36,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768104355] [2020-10-15 16:28:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:36,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:36,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:36,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:28:36,227 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:28:36,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 16:28:36,227 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:28:36,228 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:28:36,229 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 16:28:36,236 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,236 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,236 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,236 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,236 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,237 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,237 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,237 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,237 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,238 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,238 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,238 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,239 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,239 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,239 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,239 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,242 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,243 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,243 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,243 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:36,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:28:36,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:28:36,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:28:36,247 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:28:36,247 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:28:36,247 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:28:36,247 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:28:36,247 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:28:36,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:28:36,250 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:28:36,250 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 90 transitions, 198 flow [2020-10-15 16:28:36,250 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 90 transitions, 198 flow [2020-10-15 16:28:36,250 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 90 transitions, 198 flow [2020-10-15 16:28:36,290 INFO L129 PetriNetUnfolder]: 24/209 cut-off events. [2020-10-15 16:28:36,290 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-15 16:28:36,292 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. [2020-10-15 16:28:36,295 INFO L117 LiptonReduction]: Number of co-enabled transitions 824 [2020-10-15 16:28:36,509 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:36,540 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,561 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:36,563 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,563 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:36,579 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:36,611 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,631 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:36,632 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:36,633 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:38,826 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,850 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:38,853 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:38,869 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,870 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:38,879 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,898 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:38,904 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,918 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:38,919 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:38,920 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:41,016 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,047 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:41,054 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:41,083 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,084 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:41,093 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:41,128 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,153 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:41,154 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:41,155 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:43,539 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,565 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:43,569 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:43,595 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,596 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:43,614 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,647 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:43,651 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:43,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:43,686 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:46,028 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,077 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:46,081 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:46,113 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,116 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:46,129 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,164 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:46,169 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:46,199 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:46,200 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:48,290 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,324 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,328 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,354 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,355 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,355 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:28:48,370 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,405 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,432 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,433 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,434 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:28:48,501 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,538 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,542 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,569 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,570 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,570 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:28:48,582 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,621 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,649 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,649 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:28:48,650 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:28:48,700 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,750 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,797 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,798 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,799 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:48,816 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,862 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:48,902 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:48,903 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:28:51,240 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:28:51,539 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:28:51,848 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 16:28:51,964 INFO L132 LiptonReduction]: Checked pairs total: 1197 [2020-10-15 16:28:51,964 INFO L134 LiptonReduction]: Total number of compositions: 85 [2020-10-15 16:28:51,964 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 22 transitions, 62 flow [2020-10-15 16:28:51,970 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 109 states. [2020-10-15 16:28:51,970 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2020-10-15 16:28:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:28:51,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:51,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:28:51,971 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:51,972 INFO L82 PathProgramCache]: Analyzing trace with hash 15623651, now seen corresponding path program 1 times [2020-10-15 16:28:51,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:51,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500782413] [2020-10-15 16:28:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:28:52,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500782413] [2020-10-15 16:28:52,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:52,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:28:52,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498035951] [2020-10-15 16:28:52,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:28:52,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:52,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:28:52,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:52,032 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-10-15 16:28:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:52,071 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-15 16:28:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:28:52,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:28:52,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:52,077 INFO L225 Difference]: With dead ends: 109 [2020-10-15 16:28:52,077 INFO L226 Difference]: Without dead ends: 98 [2020-10-15 16:28:52,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:28:52,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-15 16:28:52,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-15 16:28:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-15 16:28:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 174 transitions. [2020-10-15 16:28:52,091 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 174 transitions. Word has length 4 [2020-10-15 16:28:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:52,092 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 174 transitions. [2020-10-15 16:28:52,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:28:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 174 transitions. [2020-10-15 16:28:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:28:52,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:52,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:52,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 16:28:52,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:52,094 INFO L82 PathProgramCache]: Analyzing trace with hash 125559316, now seen corresponding path program 1 times [2020-10-15 16:28:52,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:52,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545748842] [2020-10-15 16:28:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:28:52,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545748842] [2020-10-15 16:28:52,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:28:52,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:28:52,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41320361] [2020-10-15 16:28:52,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:28:52,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:52,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:28:52,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:28:52,148 INFO L87 Difference]: Start difference. First operand 98 states and 174 transitions. Second operand 4 states. [2020-10-15 16:28:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:52,196 INFO L93 Difference]: Finished difference Result 103 states and 171 transitions. [2020-10-15 16:28:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:28:52,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:28:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:52,199 INFO L225 Difference]: With dead ends: 103 [2020-10-15 16:28:52,199 INFO L226 Difference]: Without dead ends: 103 [2020-10-15 16:28:52,200 INFO L677 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 [2020-10-15 16:28:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-15 16:28:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2020-10-15 16:28:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-15 16:28:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 164 transitions. [2020-10-15 16:28:52,209 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 164 transitions. Word has length 10 [2020-10-15 16:28:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:52,210 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 164 transitions. [2020-10-15 16:28:52,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:28:52,210 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 164 transitions. [2020-10-15 16:28:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:28:52,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:52,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:28:52,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 16:28:52,212 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:52,212 INFO L82 PathProgramCache]: Analyzing trace with hash 823605760, now seen corresponding path program 1 times [2020-10-15 16:28:52,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:52,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746987299] [2020-10-15 16:28:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:52,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:28:52,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746987299] [2020-10-15 16:28:52,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260211325] [2020-10-15 16:28:52,282 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 [2020-10-15 16:28:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:28:52,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:28:52,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:28:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:28:52,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:28:52,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-15 16:28:52,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147704788] [2020-10-15 16:28:52,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 16:28:52,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:28:52,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 16:28:52,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:28:52,413 INFO L87 Difference]: Start difference. First operand 97 states and 164 transitions. Second operand 7 states. [2020-10-15 16:28:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:28:52,474 INFO L93 Difference]: Finished difference Result 84 states and 138 transitions. [2020-10-15 16:28:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:28:52,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-15 16:28:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:28:52,475 INFO L225 Difference]: With dead ends: 84 [2020-10-15 16:28:52,476 INFO L226 Difference]: Without dead ends: 84 [2020-10-15 16:28:52,476 INFO L677 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 [2020-10-15 16:28:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-15 16:28:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-15 16:28:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-15 16:28:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 138 transitions. [2020-10-15 16:28:52,484 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 138 transitions. Word has length 17 [2020-10-15 16:28:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:28:52,484 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 138 transitions. [2020-10-15 16:28:52,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 16:28:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 138 transitions. [2020-10-15 16:28:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:28:52,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:28:52,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1] [2020-10-15 16:28:52,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-15 16:28:52,700 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:28:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:28:52,700 INFO L82 PathProgramCache]: Analyzing trace with hash 26114190, now seen corresponding path program 1 times [2020-10-15 16:28:52,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:28:52,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146810540] [2020-10-15 16:28:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:28:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:52,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:28:52,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:28:52,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:28:52,756 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:28:52,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 16:28:52,757 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:28:52,757 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:28:52,759 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 16:28:52,765 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,765 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,765 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,765 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,766 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,766 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,766 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,766 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,766 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,767 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,767 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,767 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,767 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,767 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,768 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,768 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,768 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,768 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,768 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,769 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,769 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,769 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,770 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,771 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,771 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,771 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,772 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,772 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,773 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,773 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:28:52,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:28:52,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:28:52,776 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:28:52,776 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:28:52,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:28:52,777 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:28:52,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:28:52,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:28:52,777 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:28:52,779 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:28:52,779 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 96 transitions, 222 flow [2020-10-15 16:28:52,779 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 96 transitions, 222 flow [2020-10-15 16:28:52,779 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 96 transitions, 222 flow [2020-10-15 16:28:52,831 INFO L129 PetriNetUnfolder]: 46/368 cut-off events. [2020-10-15 16:28:52,832 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-15 16:28:52,833 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. [2020-10-15 16:28:52,838 INFO L117 LiptonReduction]: Number of co-enabled transitions 1320 [2020-10-15 16:28:53,004 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,034 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:53,038 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,057 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:53,058 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,059 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:53,071 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,099 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:53,103 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:53,125 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:53,126 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:55,234 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:55,263 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:55,280 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,280 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:55,294 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,313 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:55,317 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:55,333 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:55,333 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:28:57,851 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:57,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:57,893 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:57,921 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:57,922 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:57,923 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:28:57,933 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:57,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:57,978 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:58,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:28:58,015 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:28:58,016 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:00,292 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,318 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:00,323 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:00,354 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,355 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:00,364 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,389 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:00,392 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,414 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:00,415 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:00,416 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:02,446 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,480 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,487 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,520 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,521 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,535 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,568 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,572 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,602 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,603 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,603 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,614 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,656 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,687 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,688 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,688 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,698 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,732 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,735 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,766 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,766 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,767 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,807 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,842 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,846 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,872 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,872 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,873 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,891 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,924 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,928 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:02,958 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:02,959 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:02,990 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,026 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,065 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,065 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:03,075 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,106 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,109 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,136 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:03,136 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:03,375 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,408 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,412 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,444 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,444 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:03,459 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,502 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,507 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,557 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:03,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:03,559 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:05,648 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,682 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:05,685 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,718 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:05,719 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,719 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:05,729 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,759 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:05,763 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,796 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:05,797 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:05,797 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:08,461 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-15 16:29:08,756 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-15 16:29:08,863 INFO L132 LiptonReduction]: Checked pairs total: 2069 [2020-10-15 16:29:08,863 INFO L134 LiptonReduction]: Total number of compositions: 90 [2020-10-15 16:29:08,864 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 25 transitions, 80 flow [2020-10-15 16:29:08,875 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 297 states. [2020-10-15 16:29:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-10-15 16:29:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:29:08,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:08,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:29:08,876 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:08,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:08,877 INFO L82 PathProgramCache]: Analyzing trace with hash 21531642, now seen corresponding path program 1 times [2020-10-15 16:29:08,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:08,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714948933] [2020-10-15 16:29:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:29:08,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714948933] [2020-10-15 16:29:08,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:08,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:29:08,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908315510] [2020-10-15 16:29:08,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:29:08,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:08,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:29:08,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:08,917 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-10-15 16:29:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:08,947 INFO L93 Difference]: Finished difference Result 297 states and 636 transitions. [2020-10-15 16:29:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:29:08,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:29:08,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:08,951 INFO L225 Difference]: With dead ends: 297 [2020-10-15 16:29:08,952 INFO L226 Difference]: Without dead ends: 268 [2020-10-15 16:29:08,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-15 16:29:08,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2020-10-15 16:29:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-15 16:29:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 580 transitions. [2020-10-15 16:29:08,985 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 580 transitions. Word has length 4 [2020-10-15 16:29:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:08,985 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 580 transitions. [2020-10-15 16:29:08,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:29:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 580 transitions. [2020-10-15 16:29:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:29:08,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:08,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:08,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 16:29:08,987 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:08,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:08,987 INFO L82 PathProgramCache]: Analyzing trace with hash 656916489, now seen corresponding path program 1 times [2020-10-15 16:29:08,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:08,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018744443] [2020-10-15 16:29:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:29:09,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018744443] [2020-10-15 16:29:09,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:09,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:29:09,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774795000] [2020-10-15 16:29:09,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:29:09,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:09,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:29:09,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:29:09,055 INFO L87 Difference]: Start difference. First operand 268 states and 580 transitions. Second operand 4 states. [2020-10-15 16:29:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:09,093 INFO L93 Difference]: Finished difference Result 299 states and 612 transitions. [2020-10-15 16:29:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:29:09,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:29:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:09,096 INFO L225 Difference]: With dead ends: 299 [2020-10-15 16:29:09,096 INFO L226 Difference]: Without dead ends: 299 [2020-10-15 16:29:09,097 INFO L677 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 [2020-10-15 16:29:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-15 16:29:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 277. [2020-10-15 16:29:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-15 16:29:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 577 transitions. [2020-10-15 16:29:09,131 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 577 transitions. Word has length 10 [2020-10-15 16:29:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:09,131 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 577 transitions. [2020-10-15 16:29:09,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:29:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 577 transitions. [2020-10-15 16:29:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:29:09,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:09,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:09,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 16:29:09,135 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1586347520, now seen corresponding path program 1 times [2020-10-15 16:29:09,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:09,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886778502] [2020-10-15 16:29:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:09,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886778502] [2020-10-15 16:29:09,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097753664] [2020-10-15 16:29:09,214 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 [2020-10-15 16:29:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:09,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:29:09,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:09,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:09,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-15 16:29:09,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508413467] [2020-10-15 16:29:09,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:29:09,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:09,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:29:09,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:29:09,317 INFO L87 Difference]: Start difference. First operand 277 states and 577 transitions. Second operand 6 states. [2020-10-15 16:29:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:09,357 INFO L93 Difference]: Finished difference Result 275 states and 572 transitions. [2020-10-15 16:29:09,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:29:09,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 16:29:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:09,361 INFO L225 Difference]: With dead ends: 275 [2020-10-15 16:29:09,361 INFO L226 Difference]: Without dead ends: 275 [2020-10-15 16:29:09,361 INFO L677 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 [2020-10-15 16:29:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-15 16:29:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-10-15 16:29:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-15 16:29:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 572 transitions. [2020-10-15 16:29:09,377 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 572 transitions. Word has length 17 [2020-10-15 16:29:09,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:09,377 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 572 transitions. [2020-10-15 16:29:09,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:29:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 572 transitions. [2020-10-15 16:29:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:29:09,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:09,385 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:09,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-15 16:29:09,599 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:09,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1691264658, now seen corresponding path program 1 times [2020-10-15 16:29:09,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:09,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97929173] [2020-10-15 16:29:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:09,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97929173] [2020-10-15 16:29:09,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856429035] [2020-10-15 16:29:09,649 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 [2020-10-15 16:29:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:09,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:29:09,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:09,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:09,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-15 16:29:09,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217483584] [2020-10-15 16:29:09,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:29:09,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:09,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:29:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-15 16:29:09,784 INFO L87 Difference]: Start difference. First operand 275 states and 572 transitions. Second operand 8 states. [2020-10-15 16:29:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:09,840 INFO L93 Difference]: Finished difference Result 271 states and 560 transitions. [2020-10-15 16:29:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:29:09,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-15 16:29:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:09,842 INFO L225 Difference]: With dead ends: 271 [2020-10-15 16:29:09,842 INFO L226 Difference]: Without dead ends: 271 [2020-10-15 16:29:09,843 INFO L677 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 [2020-10-15 16:29:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-15 16:29:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-15 16:29:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-15 16:29:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 560 transitions. [2020-10-15 16:29:09,854 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 560 transitions. Word has length 23 [2020-10-15 16:29:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:09,854 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 560 transitions. [2020-10-15 16:29:09,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:29:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 560 transitions. [2020-10-15 16:29:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:29:09,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:09,857 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1] [2020-10-15 16:29:10,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-15 16:29:10,071 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:10,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:10,071 INFO L82 PathProgramCache]: Analyzing trace with hash 539631963, now seen corresponding path program 1 times [2020-10-15 16:29:10,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:10,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868854961] [2020-10-15 16:29:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:10,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:10,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:10,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:29:10,162 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:29:10,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 16:29:10,162 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:29:10,163 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:29:10,164 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 16:29:10,174 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,175 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,176 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,177 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,178 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,179 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,179 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,179 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,179 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,180 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,180 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,180 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,180 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,181 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,181 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:10,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:29:10,185 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:29:10,186 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:29:10,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:29:10,186 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:29:10,186 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:29:10,186 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:29:10,186 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:29:10,186 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:29:10,189 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:29:10,189 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 102 transitions, 248 flow [2020-10-15 16:29:10,189 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 102 transitions, 248 flow [2020-10-15 16:29:10,189 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 102 transitions, 248 flow [2020-10-15 16:29:10,310 INFO L129 PetriNetUnfolder]: 92/671 cut-off events. [2020-10-15 16:29:10,310 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-15 16:29:10,313 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. [2020-10-15 16:29:10,322 INFO L117 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-15 16:29:10,509 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,526 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,529 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,539 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,540 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-15 16:29:10,548 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,566 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,577 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:10,578 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-15 16:29:10,638 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,660 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,664 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,684 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,684 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:10,696 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,718 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,721 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:10,736 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:10,736 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:12,819 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,841 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:12,847 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:12,869 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,869 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:12,877 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:12,902 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,916 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:12,917 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:12,918 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:15,016 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,029 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,038 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,047 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,047 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,048 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-15 16:29:15,054 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,067 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,069 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,077 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,077 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:15,078 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:62 [2020-10-15 16:29:15,488 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,523 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,527 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,560 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,561 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:15,575 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,610 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,640 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:15,641 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:15,641 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:17,744 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:17,771 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:17,794 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,794 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:17,811 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,834 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:17,838 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:17,859 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:17,860 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:20,338 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:20,388 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:20,427 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,427 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:20,458 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:20,502 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,530 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:20,531 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:20,531 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:22,583 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,612 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:22,618 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,655 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:22,656 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,656 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:22,669 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:22,707 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,736 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:22,737 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:22,737 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:24,966 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,007 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:25,012 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,042 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:25,043 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,044 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:25,060 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,102 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:25,105 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,132 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:25,133 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:25,133 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:27,192 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,231 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:27,234 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,261 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:27,262 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,262 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:27,273 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:27,307 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,331 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:27,332 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:27,332 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:29,641 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-15 16:29:29,962 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 16:29:30,068 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-15 16:29:30,075 INFO L132 LiptonReduction]: Checked pairs total: 3489 [2020-10-15 16:29:30,075 INFO L134 LiptonReduction]: Total number of compositions: 90 [2020-10-15 16:29:30,076 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 100 flow [2020-10-15 16:29:30,102 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 817 states. [2020-10-15 16:29:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states. [2020-10-15 16:29:30,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:29:30,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:30,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:29:30,103 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:30,104 INFO L82 PathProgramCache]: Analyzing trace with hash 27625699, now seen corresponding path program 1 times [2020-10-15 16:29:30,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:30,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592797633] [2020-10-15 16:29:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:29:30,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592797633] [2020-10-15 16:29:30,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:30,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:29:30,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515082875] [2020-10-15 16:29:30,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:29:30,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:30,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:29:30,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:30,128 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 3 states. [2020-10-15 16:29:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:30,164 INFO L93 Difference]: Finished difference Result 817 states and 2065 transitions. [2020-10-15 16:29:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:29:30,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:29:30,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:30,171 INFO L225 Difference]: With dead ends: 817 [2020-10-15 16:29:30,172 INFO L226 Difference]: Without dead ends: 734 [2020-10-15 16:29:30,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2020-10-15 16:29:30,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2020-10-15 16:29:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-15 16:29:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1874 transitions. [2020-10-15 16:29:30,208 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1874 transitions. Word has length 4 [2020-10-15 16:29:30,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:30,208 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1874 transitions. [2020-10-15 16:29:30,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:29:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1874 transitions. [2020-10-15 16:29:30,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:29:30,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:30,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:30,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 16:29:30,209 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:30,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:30,210 INFO L82 PathProgramCache]: Analyzing trace with hash -399158139, now seen corresponding path program 1 times [2020-10-15 16:29:30,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:30,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463246189] [2020-10-15 16:29:30,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:29:30,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463246189] [2020-10-15 16:29:30,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:30,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:29:30,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034076750] [2020-10-15 16:29:30,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:29:30,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:30,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:29:30,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:29:30,254 INFO L87 Difference]: Start difference. First operand 734 states and 1874 transitions. Second operand 4 states. [2020-10-15 16:29:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:30,298 INFO L93 Difference]: Finished difference Result 843 states and 2061 transitions. [2020-10-15 16:29:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:29:30,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:29:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:30,304 INFO L225 Difference]: With dead ends: 843 [2020-10-15 16:29:30,304 INFO L226 Difference]: Without dead ends: 843 [2020-10-15 16:29:30,304 INFO L677 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 [2020-10-15 16:29:30,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-10-15 16:29:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 781. [2020-10-15 16:29:30,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2020-10-15 16:29:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1934 transitions. [2020-10-15 16:29:30,333 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1934 transitions. Word has length 10 [2020-10-15 16:29:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:30,333 INFO L481 AbstractCegarLoop]: Abstraction has 781 states and 1934 transitions. [2020-10-15 16:29:30,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:29:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1934 transitions. [2020-10-15 16:29:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:29:30,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:30,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:30,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 16:29:30,335 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:30,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2066968861, now seen corresponding path program 1 times [2020-10-15 16:29:30,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:30,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143132657] [2020-10-15 16:29:30,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:30,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143132657] [2020-10-15 16:29:30,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91673648] [2020-10-15 16:29:30,392 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 [2020-10-15 16:29:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:30,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:29:30,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:30,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:30,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-15 16:29:30,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633099652] [2020-10-15 16:29:30,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 16:29:30,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:30,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 16:29:30,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:29:30,507 INFO L87 Difference]: Start difference. First operand 781 states and 1934 transitions. Second operand 7 states. [2020-10-15 16:29:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:30,600 INFO L93 Difference]: Finished difference Result 834 states and 1946 transitions. [2020-10-15 16:29:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:29:30,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-15 16:29:30,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:30,607 INFO L225 Difference]: With dead ends: 834 [2020-10-15 16:29:30,607 INFO L226 Difference]: Without dead ends: 834 [2020-10-15 16:29:30,608 INFO L677 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 [2020-10-15 16:29:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-15 16:29:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 788. [2020-10-15 16:29:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-15 16:29:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1868 transitions. [2020-10-15 16:29:30,674 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1868 transitions. Word has length 17 [2020-10-15 16:29:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:30,675 INFO L481 AbstractCegarLoop]: Abstraction has 788 states and 1868 transitions. [2020-10-15 16:29:30,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 16:29:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1868 transitions. [2020-10-15 16:29:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 16:29:30,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:30,677 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:30,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:29:30,890 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:30,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1728417408, now seen corresponding path program 1 times [2020-10-15 16:29:30,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:30,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74030814] [2020-10-15 16:29:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:30,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:30,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:30,980 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:29:30,981 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:29:30,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 16:29:30,981 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:29:30,981 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:29:30,984 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:29:30,984 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,000 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,001 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,002 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,003 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,003 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,003 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,003 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,003 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,004 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,005 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,005 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,005 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,005 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,007 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,007 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,007 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,007 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,008 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,008 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,008 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,008 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,010 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,010 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,010 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,010 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:31,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:29:31,016 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:29:31,016 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:29:31,016 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:29:31,016 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:29:31,016 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:29:31,016 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:29:31,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:29:31,017 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:29:31,018 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:29:31,018 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 108 transitions, 276 flow [2020-10-15 16:29:31,018 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 108 transitions, 276 flow [2020-10-15 16:29:31,018 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 276 flow [2020-10-15 16:29:31,183 INFO L129 PetriNetUnfolder]: 190/1266 cut-off events. [2020-10-15 16:29:31,183 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2020-10-15 16:29:31,190 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. [2020-10-15 16:29:31,217 INFO L117 LiptonReduction]: Number of co-enabled transitions 2480 [2020-10-15 16:29:31,628 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,646 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:31,649 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,665 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:31,665 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,666 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:31,673 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,691 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:31,694 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,707 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:31,708 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:31,708 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:34,038 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,066 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:34,069 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,090 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:34,091 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,092 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:34,101 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:34,131 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,153 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:34,153 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:34,154 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:36,213 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,239 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:36,243 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:36,265 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,265 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:36,272 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,297 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:36,301 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,321 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:36,322 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:36,322 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:38,422 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:38,453 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,474 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:38,475 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,475 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:38,482 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:38,512 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,534 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:38,535 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:38,535 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:40,590 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,616 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:40,620 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:40,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,645 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:40,652 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:40,681 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:40,706 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:40,706 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:42,810 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,842 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:42,845 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,868 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:42,868 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,868 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:42,904 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,941 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:42,945 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,980 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:42,981 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:42,981 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:42,990 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,026 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,029 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,058 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,058 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,059 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,065 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,104 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,131 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,131 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,139 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,172 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,174 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,203 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,203 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,222 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,267 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,295 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,296 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,307 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,343 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,373 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,373 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,386 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,422 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,425 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,454 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,455 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,455 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,478 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,509 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,512 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,538 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,538 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,539 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,551 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,586 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,611 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,611 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,631 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,674 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,703 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,703 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,704 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,713 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,750 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,754 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,780 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,781 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,802 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,845 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,849 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,879 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,879 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,880 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:43,889 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,945 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,949 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:43,988 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:43,988 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:44,003 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,048 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,053 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,095 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,095 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,096 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:44,106 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,161 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,166 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,207 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:44,208 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:44,326 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,394 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,447 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,448 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,448 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:44,468 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,529 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,536 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:44,589 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:44,590 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:46,628 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,673 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,701 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,701 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:46,708 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,746 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,750 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,779 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,779 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:46,787 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,826 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,829 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,856 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,857 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,857 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:46,864 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,900 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,904 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,930 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,930 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:46,945 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:46,979 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:46,982 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,011 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,011 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,012 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,018 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,053 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,056 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,088 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,089 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,089 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,097 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,132 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,136 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,167 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,168 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,168 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,175 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,210 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,213 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,243 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,243 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,298 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,334 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,337 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,399 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,400 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,400 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,408 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,447 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,477 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,478 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,478 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,487 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,525 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,557 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,558 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,566 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,605 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,609 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,640 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,640 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,648 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,682 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,685 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,715 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,716 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,716 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,723 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,758 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,761 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,789 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,790 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,790 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,805 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,840 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,843 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,874 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,874 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,874 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:47,882 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,916 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,920 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,946 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:47,946 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:47,947 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,106 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,139 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,142 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,174 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,174 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,175 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,182 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,217 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,220 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,255 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,255 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-15 16:29:48,265 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,301 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,304 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,334 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,335 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-15 16:29:48,353 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,393 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,397 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,423 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,425 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,425 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:107 [2020-10-15 16:29:48,435 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,487 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,493 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,527 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,528 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,528 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,540 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,598 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,637 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,638 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,638 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,650 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,706 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,748 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,748 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,758 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,805 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,809 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,838 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,839 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:29:48,839 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:29:48,878 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,924 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,963 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:48,964 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:48,965 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:48,977 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:49,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:49,026 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:49,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:49,061 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:49,062 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:29:51,511 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 16:29:51,854 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-15 16:29:51,953 INFO L132 LiptonReduction]: Checked pairs total: 4239 [2020-10-15 16:29:51,954 INFO L134 LiptonReduction]: Total number of compositions: 93 [2020-10-15 16:29:51,954 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 31 transitions, 122 flow [2020-10-15 16:29:52,051 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2289 states. [2020-10-15 16:29:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states. [2020-10-15 16:29:52,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:29:52,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:52,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:29:52,052 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:52,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:52,052 INFO L82 PathProgramCache]: Analyzing trace with hash 33997000, now seen corresponding path program 1 times [2020-10-15 16:29:52,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:52,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111395933] [2020-10-15 16:29:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:29:52,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111395933] [2020-10-15 16:29:52,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:52,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:29:52,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059239621] [2020-10-15 16:29:52,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:29:52,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:29:52,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:52,072 INFO L87 Difference]: Start difference. First operand 2289 states. Second operand 3 states. [2020-10-15 16:29:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:52,108 INFO L93 Difference]: Finished difference Result 2289 states and 6658 transitions. [2020-10-15 16:29:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:29:52,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:29:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:52,124 INFO L225 Difference]: With dead ends: 2289 [2020-10-15 16:29:52,124 INFO L226 Difference]: Without dead ends: 2044 [2020-10-15 16:29:52,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:29:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2020-10-15 16:29:52,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2044. [2020-10-15 16:29:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2020-10-15 16:29:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 6008 transitions. [2020-10-15 16:29:52,197 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 6008 transitions. Word has length 4 [2020-10-15 16:29:52,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:52,197 INFO L481 AbstractCegarLoop]: Abstraction has 2044 states and 6008 transitions. [2020-10-15 16:29:52,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:29:52,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 6008 transitions. [2020-10-15 16:29:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:29:52,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:52,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:52,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 16:29:52,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:52,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:52,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1850212091, now seen corresponding path program 1 times [2020-10-15 16:29:52,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:52,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013438420] [2020-10-15 16:29:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:52,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:29:52,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013438420] [2020-10-15 16:29:52,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:29:52,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:29:52,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659883644] [2020-10-15 16:29:52,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:29:52,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:52,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:29:52,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:29:52,239 INFO L87 Difference]: Start difference. First operand 2044 states and 6008 transitions. Second operand 4 states. [2020-10-15 16:29:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:52,285 INFO L93 Difference]: Finished difference Result 2379 states and 6766 transitions. [2020-10-15 16:29:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:29:52,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:29:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:52,304 INFO L225 Difference]: With dead ends: 2379 [2020-10-15 16:29:52,304 INFO L226 Difference]: Without dead ends: 2379 [2020-10-15 16:29:52,304 INFO L677 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 [2020-10-15 16:29:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2020-10-15 16:29:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2221. [2020-10-15 16:29:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2020-10-15 16:29:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 6367 transitions. [2020-10-15 16:29:52,376 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 6367 transitions. Word has length 10 [2020-10-15 16:29:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:52,376 INFO L481 AbstractCegarLoop]: Abstraction has 2221 states and 6367 transitions. [2020-10-15 16:29:52,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:29:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 6367 transitions. [2020-10-15 16:29:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:29:52,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:52,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:52,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 16:29:52,378 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:52,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:52,379 INFO L82 PathProgramCache]: Analyzing trace with hash -50306259, now seen corresponding path program 1 times [2020-10-15 16:29:52,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:52,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501818810] [2020-10-15 16:29:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:52,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501818810] [2020-10-15 16:29:52,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296922502] [2020-10-15 16:29:52,416 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 [2020-10-15 16:29:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:52,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:29:52,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:52,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:52,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-15 16:29:52,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885649614] [2020-10-15 16:29:52,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:29:52,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:52,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:29:52,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:29:52,549 INFO L87 Difference]: Start difference. First operand 2221 states and 6367 transitions. Second operand 6 states. [2020-10-15 16:29:52,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:52,605 INFO L93 Difference]: Finished difference Result 2219 states and 6362 transitions. [2020-10-15 16:29:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:29:52,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 16:29:52,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:52,621 INFO L225 Difference]: With dead ends: 2219 [2020-10-15 16:29:52,621 INFO L226 Difference]: Without dead ends: 2219 [2020-10-15 16:29:52,622 INFO L677 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 [2020-10-15 16:29:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2020-10-15 16:29:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2020-10-15 16:29:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-10-15 16:29:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 6362 transitions. [2020-10-15 16:29:52,689 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 6362 transitions. Word has length 17 [2020-10-15 16:29:52,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:52,690 INFO L481 AbstractCegarLoop]: Abstraction has 2219 states and 6362 transitions. [2020-10-15 16:29:52,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:29:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 6362 transitions. [2020-10-15 16:29:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:29:52,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:52,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:52,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:29:52,904 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:52,905 INFO L82 PathProgramCache]: Analyzing trace with hash -811477057, now seen corresponding path program 1 times [2020-10-15 16:29:52,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:52,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445656796] [2020-10-15 16:29:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:52,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445656796] [2020-10-15 16:29:52,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093020927] [2020-10-15 16:29:52,958 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 [2020-10-15 16:29:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:53,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:29:53,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:53,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:53,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-15 16:29:53,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087941488] [2020-10-15 16:29:53,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:29:53,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:53,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:29:53,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-15 16:29:53,076 INFO L87 Difference]: Start difference. First operand 2219 states and 6362 transitions. Second operand 8 states. [2020-10-15 16:29:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:53,122 INFO L93 Difference]: Finished difference Result 2215 states and 6350 transitions. [2020-10-15 16:29:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:29:53,123 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-15 16:29:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:53,139 INFO L225 Difference]: With dead ends: 2215 [2020-10-15 16:29:53,140 INFO L226 Difference]: Without dead ends: 2215 [2020-10-15 16:29:53,140 INFO L677 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 [2020-10-15 16:29:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2020-10-15 16:29:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2020-10-15 16:29:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2215 states. [2020-10-15 16:29:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 6350 transitions. [2020-10-15 16:29:53,209 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 6350 transitions. Word has length 23 [2020-10-15 16:29:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:53,210 INFO L481 AbstractCegarLoop]: Abstraction has 2215 states and 6350 transitions. [2020-10-15 16:29:53,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:29:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 6350 transitions. [2020-10-15 16:29:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 16:29:53,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:53,211 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:53,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:29:53,424 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:53,425 INFO L82 PathProgramCache]: Analyzing trace with hash -346309584, now seen corresponding path program 1 times [2020-10-15 16:29:53,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:53,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53563842] [2020-10-15 16:29:53,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:53,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53563842] [2020-10-15 16:29:53,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616950309] [2020-10-15 16:29:53,475 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 [2020-10-15 16:29:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:53,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 16:29:53,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:53,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:53,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-15 16:29:53,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264496861] [2020-10-15 16:29:53,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 16:29:53,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:53,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 16:29:53,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-15 16:29:53,632 INFO L87 Difference]: Start difference. First operand 2215 states and 6350 transitions. Second operand 10 states. [2020-10-15 16:29:53,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:53,803 INFO L93 Difference]: Finished difference Result 2207 states and 6322 transitions. [2020-10-15 16:29:53,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:29:53,803 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-15 16:29:53,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:53,825 INFO L225 Difference]: With dead ends: 2207 [2020-10-15 16:29:53,825 INFO L226 Difference]: Without dead ends: 2207 [2020-10-15 16:29:53,825 INFO L677 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 [2020-10-15 16:29:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-10-15 16:29:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2020-10-15 16:29:53,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2020-10-15 16:29:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 6322 transitions. [2020-10-15 16:29:53,911 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 6322 transitions. Word has length 29 [2020-10-15 16:29:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:53,911 INFO L481 AbstractCegarLoop]: Abstraction has 2207 states and 6322 transitions. [2020-10-15 16:29:53,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 16:29:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 6322 transitions. [2020-10-15 16:29:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-15 16:29:53,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:53,915 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:54,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:29:54,128 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:54,129 INFO L82 PathProgramCache]: Analyzing trace with hash 107769152, now seen corresponding path program 1 times [2020-10-15 16:29:54,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:54,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935363138] [2020-10-15 16:29:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:54,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935363138] [2020-10-15 16:29:54,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252604376] [2020-10-15 16:29:54,189 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 [2020-10-15 16:29:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:29:54,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-15 16:29:54,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:29:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:29:54,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:29:54,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-15 16:29:54,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336634463] [2020-10-15 16:29:54,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:29:54,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:29:54,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:29:54,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:29:54,328 INFO L87 Difference]: Start difference. First operand 2207 states and 6322 transitions. Second operand 12 states. [2020-10-15 16:29:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:29:54,423 INFO L93 Difference]: Finished difference Result 2191 states and 6258 transitions. [2020-10-15 16:29:54,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 16:29:54,424 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-15 16:29:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:29:54,450 INFO L225 Difference]: With dead ends: 2191 [2020-10-15 16:29:54,450 INFO L226 Difference]: Without dead ends: 2191 [2020-10-15 16:29:54,451 INFO L677 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 [2020-10-15 16:29:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2020-10-15 16:29:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2191. [2020-10-15 16:29:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2191 states. [2020-10-15 16:29:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 6258 transitions. [2020-10-15 16:29:54,516 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 6258 transitions. Word has length 35 [2020-10-15 16:29:54,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:29:54,518 INFO L481 AbstractCegarLoop]: Abstraction has 2191 states and 6258 transitions. [2020-10-15 16:29:54,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:29:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 6258 transitions. [2020-10-15 16:29:54,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-15 16:29:54,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:29:54,520 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:29:54,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-15 16:29:54,734 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:29:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:29:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash -793168517, now seen corresponding path program 1 times [2020-10-15 16:29:54,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:29:54,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268922493] [2020-10-15 16:29:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:29:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:54,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:29:54,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:29:54,782 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:29:54,783 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:29:54,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 16:29:54,783 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:29:54,783 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:29:54,784 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:29:54,784 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,795 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,796 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,797 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,798 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,798 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,798 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,798 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,798 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,799 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,800 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,800 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,800 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,800 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,802 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,802 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,802 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,802 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,803 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,803 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,804 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,804 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,805 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,805 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,805 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,805 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,806 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,806 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,806 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,807 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:29:54,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:29:54,812 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:29:54,812 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:29:54,812 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:29:54,812 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:29:54,812 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:29:54,812 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:29:54,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:29:54,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:29:54,814 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:29:54,814 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 114 transitions, 306 flow [2020-10-15 16:29:54,814 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 114 transitions, 306 flow [2020-10-15 16:29:54,814 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 114 transitions, 306 flow [2020-10-15 16:29:55,105 INFO L129 PetriNetUnfolder]: 400/2453 cut-off events. [2020-10-15 16:29:55,106 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2020-10-15 16:29:55,120 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. [2020-10-15 16:29:55,172 INFO L117 LiptonReduction]: Number of co-enabled transitions 3144 [2020-10-15 16:29:55,201 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,230 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:55,235 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,261 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:55,262 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,263 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:55,273 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:55,315 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:55,343 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:55,344 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:29:57,907 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:57,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:57,933 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:57,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:57,955 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:57,956 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:29:57,962 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:57,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:57,991 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:58,011 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:29:58,012 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:29:58,012 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:00,022 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,049 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:00,052 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,072 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:00,073 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,074 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:00,093 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,116 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:00,126 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,148 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:00,149 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:00,149 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:02,198 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,222 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:02,225 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,247 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:02,248 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,248 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:02,258 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,282 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:02,285 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,309 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:02,309 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:02,310 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:04,384 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:04,414 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,436 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:04,437 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,438 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:04,449 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,473 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:04,476 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:04,497 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:04,498 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:06,601 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,630 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:06,636 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,658 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:06,659 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,659 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:06,667 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:06,696 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:06,720 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:06,720 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:09,034 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:09,063 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,084 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:09,084 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,085 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:09,091 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:09,119 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:09,140 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:09,140 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:11,198 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:11,236 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:11,266 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,266 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:11,275 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,306 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:11,309 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,337 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:11,338 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:11,338 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:13,430 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,464 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:13,469 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,502 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:13,502 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,503 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:13,510 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,542 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:13,546 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,573 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:13,574 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:13,574 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:16,011 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,054 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,083 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,083 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,091 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,125 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,128 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,155 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,155 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,165 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,203 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,206 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,233 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,233 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,241 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,281 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,309 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,310 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,310 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,320 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,358 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,389 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,390 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,390 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,398 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,430 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,433 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,464 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:16,464 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:16,465 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:16,835 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-15 16:30:17,125 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-15 16:30:17,218 INFO L132 LiptonReduction]: Checked pairs total: 5960 [2020-10-15 16:30:17,218 INFO L134 LiptonReduction]: Total number of compositions: 96 [2020-10-15 16:30:17,218 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 34 transitions, 146 flow [2020-10-15 16:30:17,504 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6529 states. [2020-10-15 16:30:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6529 states. [2020-10-15 16:30:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:30:17,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:17,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:30:17,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:17,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:17,505 INFO L82 PathProgramCache]: Analyzing trace with hash 40649002, now seen corresponding path program 1 times [2020-10-15 16:30:17,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:17,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132705586] [2020-10-15 16:30:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:30:17,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132705586] [2020-10-15 16:30:17,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:30:17,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:30:17,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917309450] [2020-10-15 16:30:17,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:30:17,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:17,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:30:17,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:30:17,525 INFO L87 Difference]: Start difference. First operand 6529 states. Second operand 3 states. [2020-10-15 16:30:17,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:17,580 INFO L93 Difference]: Finished difference Result 6529 states and 21447 transitions. [2020-10-15 16:30:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:30:17,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:30:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:17,607 INFO L225 Difference]: With dead ends: 6529 [2020-10-15 16:30:17,607 INFO L226 Difference]: Without dead ends: 5798 [2020-10-15 16:30:17,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:30:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2020-10-15 16:30:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 5798. [2020-10-15 16:30:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5798 states. [2020-10-15 16:30:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 19258 transitions. [2020-10-15 16:30:17,784 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 19258 transitions. Word has length 4 [2020-10-15 16:30:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:17,785 INFO L481 AbstractCegarLoop]: Abstraction has 5798 states and 19258 transitions. [2020-10-15 16:30:17,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:30:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 19258 transitions. [2020-10-15 16:30:17,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:30:17,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:17,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:17,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 16:30:17,786 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:17,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:17,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1545227554, now seen corresponding path program 1 times [2020-10-15 16:30:17,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:17,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987292253] [2020-10-15 16:30:17,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:30:17,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987292253] [2020-10-15 16:30:17,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:30:17,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:30:17,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854803079] [2020-10-15 16:30:17,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:30:17,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:17,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:30:17,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:30:17,817 INFO L87 Difference]: Start difference. First operand 5798 states and 19258 transitions. Second operand 4 states. [2020-10-15 16:30:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:17,884 INFO L93 Difference]: Finished difference Result 6779 states and 21955 transitions. [2020-10-15 16:30:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:30:17,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:30:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:17,911 INFO L225 Difference]: With dead ends: 6779 [2020-10-15 16:30:17,911 INFO L226 Difference]: Without dead ends: 6779 [2020-10-15 16:30:17,912 INFO L677 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 [2020-10-15 16:30:17,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2020-10-15 16:30:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6397. [2020-10-15 16:30:18,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6397 states. [2020-10-15 16:30:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 20804 transitions. [2020-10-15 16:30:18,335 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 20804 transitions. Word has length 10 [2020-10-15 16:30:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:18,335 INFO L481 AbstractCegarLoop]: Abstraction has 6397 states and 20804 transitions. [2020-10-15 16:30:18,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:30:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 20804 transitions. [2020-10-15 16:30:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:30:18,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:18,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:18,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 16:30:18,337 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:18,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash 2077640958, now seen corresponding path program 1 times [2020-10-15 16:30:18,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:18,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348350989] [2020-10-15 16:30:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:18,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348350989] [2020-10-15 16:30:18,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566000128] [2020-10-15 16:30:18,387 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 [2020-10-15 16:30:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:18,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:30:18,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:18,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:18,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-15 16:30:18,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791975661] [2020-10-15 16:30:18,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 16:30:18,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:18,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 16:30:18,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:30:18,482 INFO L87 Difference]: Start difference. First operand 6397 states and 20804 transitions. Second operand 7 states. [2020-10-15 16:30:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:18,580 INFO L93 Difference]: Finished difference Result 7274 states and 22654 transitions. [2020-10-15 16:30:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:30:18,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-15 16:30:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:18,604 INFO L225 Difference]: With dead ends: 7274 [2020-10-15 16:30:18,604 INFO L226 Difference]: Without dead ends: 7274 [2020-10-15 16:30:18,604 INFO L677 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 [2020-10-15 16:30:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2020-10-15 16:30:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 6796. [2020-10-15 16:30:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6796 states. [2020-10-15 16:30:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6796 states to 6796 states and 21344 transitions. [2020-10-15 16:30:18,777 INFO L78 Accepts]: Start accepts. Automaton has 6796 states and 21344 transitions. Word has length 17 [2020-10-15 16:30:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:18,777 INFO L481 AbstractCegarLoop]: Abstraction has 6796 states and 21344 transitions. [2020-10-15 16:30:18,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 16:30:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6796 states and 21344 transitions. [2020-10-15 16:30:18,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 16:30:18,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:18,779 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:18,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-10-15 16:30:18,992 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:18,992 INFO L82 PathProgramCache]: Analyzing trace with hash -592214146, now seen corresponding path program 1 times [2020-10-15 16:30:18,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:18,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780170703] [2020-10-15 16:30:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-15 16:30:19,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780170703] [2020-10-15 16:30:19,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138534015] [2020-10-15 16:30:19,043 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 [2020-10-15 16:30:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:19,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:30:19,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-15 16:30:19,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:19,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-15 16:30:19,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904913962] [2020-10-15 16:30:19,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 16:30:19,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:19,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 16:30:19,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2020-10-15 16:30:19,191 INFO L87 Difference]: Start difference. First operand 6796 states and 21344 transitions. Second operand 9 states. [2020-10-15 16:30:19,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:19,287 INFO L93 Difference]: Finished difference Result 6941 states and 21009 transitions. [2020-10-15 16:30:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:30:19,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-15 16:30:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:19,307 INFO L225 Difference]: With dead ends: 6941 [2020-10-15 16:30:19,307 INFO L226 Difference]: Without dead ends: 6941 [2020-10-15 16:30:19,308 INFO L677 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 [2020-10-15 16:30:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6941 states. [2020-10-15 16:30:19,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6941 to 6623. [2020-10-15 16:30:19,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6623 states. [2020-10-15 16:30:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 20272 transitions. [2020-10-15 16:30:19,499 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 20272 transitions. Word has length 30 [2020-10-15 16:30:19,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:19,499 INFO L481 AbstractCegarLoop]: Abstraction has 6623 states and 20272 transitions. [2020-10-15 16:30:19,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 16:30:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 20272 transitions. [2020-10-15 16:30:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 16:30:19,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:19,505 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:19,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-15 16:30:19,722 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash -431266190, now seen corresponding path program 1 times [2020-10-15 16:30:19,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:19,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208692072] [2020-10-15 16:30:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:30:19,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:30:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:30:19,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:30:19,777 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:30:19,777 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:30:19,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 16:30:19,778 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:30:19,778 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:30:19,778 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 16:30:19,787 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,788 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,789 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,790 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,791 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,791 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,791 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,791 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,791 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,792 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,793 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,794 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,794 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,794 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,796 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,796 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,796 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,797 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,797 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,798 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,799 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,799 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,799 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,799 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,800 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,801 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,801 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,801 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,802 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,802 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,802 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,802 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,803 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,804 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,804 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,804 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:19,809 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:30:19,809 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:30:19,810 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:30:19,810 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:30:19,810 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:30:19,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:30:19,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:30:19,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:30:19,810 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:30:19,811 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:30:19,812 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 120 transitions, 338 flow [2020-10-15 16:30:19,812 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 120 transitions, 338 flow [2020-10-15 16:30:19,812 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 121 places, 120 transitions, 338 flow [2020-10-15 16:30:20,642 INFO L129 PetriNetUnfolder]: 850/4840 cut-off events. [2020-10-15 16:30:20,642 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2020-10-15 16:30:20,666 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. [2020-10-15 16:30:20,776 INFO L117 LiptonReduction]: Number of co-enabled transitions 3864 [2020-10-15 16:30:21,294 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,318 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:21,322 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:21,341 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,341 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:21,350 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:21,376 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,395 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:21,396 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:21,396 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:23,447 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,466 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:23,472 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,495 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:23,495 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,496 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:23,505 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:23,526 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,540 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:23,541 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:23,541 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:25,742 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,766 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:25,770 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,792 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:25,792 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,793 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:25,800 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:25,833 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,854 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:25,855 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:25,855 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:28,071 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,152 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:28,158 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,177 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:28,178 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,178 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:28,184 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,208 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:28,211 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,235 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:28,235 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:28,236 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:30,847 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:30,888 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,918 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:30,919 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,919 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:30,929 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:30,964 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:30,992 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:30,992 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:33,075 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:33,111 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,141 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:33,141 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,142 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:33,149 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,180 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:33,184 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,212 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:33,213 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:33,213 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:35,584 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,617 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:35,619 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,645 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:35,646 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,646 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:35,652 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,690 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:35,694 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,723 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:35,724 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:30:35,724 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:30:35,851 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 16:30:36,246 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-15 16:30:36,349 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-15 16:30:36,352 INFO L132 LiptonReduction]: Checked pairs total: 7691 [2020-10-15 16:30:36,353 INFO L134 LiptonReduction]: Total number of compositions: 101 [2020-10-15 16:30:36,353 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 37 transitions, 172 flow [2020-10-15 16:30:37,408 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18897 states. [2020-10-15 16:30:37,409 INFO L276 IsEmpty]: Start isEmpty. Operand 18897 states. [2020-10-15 16:30:37,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:30:37,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:37,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:30:37,409 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:37,410 INFO L82 PathProgramCache]: Analyzing trace with hash 47630986, now seen corresponding path program 1 times [2020-10-15 16:30:37,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:37,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053189375] [2020-10-15 16:30:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:30:37,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053189375] [2020-10-15 16:30:37,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:30:37,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:30:37,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780773824] [2020-10-15 16:30:37,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:30:37,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:37,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:30:37,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:30:37,427 INFO L87 Difference]: Start difference. First operand 18897 states. Second operand 3 states. [2020-10-15 16:30:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:37,530 INFO L93 Difference]: Finished difference Result 18897 states and 69116 transitions. [2020-10-15 16:30:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:30:37,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:30:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:37,581 INFO L225 Difference]: With dead ends: 18897 [2020-10-15 16:30:37,581 INFO L226 Difference]: Without dead ends: 16708 [2020-10-15 16:30:37,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:30:37,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16708 states. [2020-10-15 16:30:38,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16708 to 16708. [2020-10-15 16:30:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16708 states. [2020-10-15 16:30:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16708 states to 16708 states and 61824 transitions. [2020-10-15 16:30:39,027 INFO L78 Accepts]: Start accepts. Automaton has 16708 states and 61824 transitions. Word has length 4 [2020-10-15 16:30:39,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:39,028 INFO L481 AbstractCegarLoop]: Abstraction has 16708 states and 61824 transitions. [2020-10-15 16:30:39,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:30:39,028 INFO L276 IsEmpty]: Start isEmpty. Operand 16708 states and 61824 transitions. [2020-10-15 16:30:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:30:39,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:39,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:39,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 16:30:39,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:39,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1252214789, now seen corresponding path program 1 times [2020-10-15 16:30:39,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:39,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806987889] [2020-10-15 16:30:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:30:39,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806987889] [2020-10-15 16:30:39,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:30:39,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:30:39,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364833319] [2020-10-15 16:30:39,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:30:39,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:39,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:30:39,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:30:39,056 INFO L87 Difference]: Start difference. First operand 16708 states and 61824 transitions. Second operand 4 states. [2020-10-15 16:30:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:39,179 INFO L93 Difference]: Finished difference Result 19531 states and 70840 transitions. [2020-10-15 16:30:39,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:30:39,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:30:39,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:39,225 INFO L225 Difference]: With dead ends: 19531 [2020-10-15 16:30:39,226 INFO L226 Difference]: Without dead ends: 19531 [2020-10-15 16:30:39,226 INFO L677 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 [2020-10-15 16:30:39,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19531 states. [2020-10-15 16:30:39,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19531 to 18637. [2020-10-15 16:30:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18637 states. [2020-10-15 16:30:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18637 states to 18637 states and 67705 transitions. [2020-10-15 16:30:39,857 INFO L78 Accepts]: Start accepts. Automaton has 18637 states and 67705 transitions. Word has length 10 [2020-10-15 16:30:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:39,858 INFO L481 AbstractCegarLoop]: Abstraction has 18637 states and 67705 transitions. [2020-10-15 16:30:39,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:30:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 18637 states and 67705 transitions. [2020-10-15 16:30:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:30:39,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:39,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:39,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 16:30:39,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:39,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:39,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1432879296, now seen corresponding path program 1 times [2020-10-15 16:30:39,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:39,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870352210] [2020-10-15 16:30:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:39,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870352210] [2020-10-15 16:30:39,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464555767] [2020-10-15 16:30:39,885 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 [2020-10-15 16:30:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:39,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:30:39,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:39,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:39,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-15 16:30:39,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621583146] [2020-10-15 16:30:39,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:30:39,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:39,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:30:39,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:30:39,991 INFO L87 Difference]: Start difference. First operand 18637 states and 67705 transitions. Second operand 6 states. [2020-10-15 16:30:40,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:40,305 INFO L93 Difference]: Finished difference Result 18635 states and 67700 transitions. [2020-10-15 16:30:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:30:40,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 16:30:40,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:40,344 INFO L225 Difference]: With dead ends: 18635 [2020-10-15 16:30:40,344 INFO L226 Difference]: Without dead ends: 18635 [2020-10-15 16:30:40,344 INFO L677 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 [2020-10-15 16:30:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18635 states. [2020-10-15 16:30:40,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18635 to 18635. [2020-10-15 16:30:40,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18635 states. [2020-10-15 16:30:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18635 states to 18635 states and 67700 transitions. [2020-10-15 16:30:40,774 INFO L78 Accepts]: Start accepts. Automaton has 18635 states and 67700 transitions. Word has length 17 [2020-10-15 16:30:40,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:40,774 INFO L481 AbstractCegarLoop]: Abstraction has 18635 states and 67700 transitions. [2020-10-15 16:30:40,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:30:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 18635 states and 67700 transitions. [2020-10-15 16:30:40,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:30:40,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:40,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:40,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-10-15 16:30:40,991 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:40,991 INFO L82 PathProgramCache]: Analyzing trace with hash -619616742, now seen corresponding path program 1 times [2020-10-15 16:30:40,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:40,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183299933] [2020-10-15 16:30:40,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:41,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183299933] [2020-10-15 16:30:41,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088175486] [2020-10-15 16:30:41,032 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 [2020-10-15 16:30:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:41,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:30:41,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:41,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:41,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-15 16:30:41,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096366272] [2020-10-15 16:30:41,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:30:41,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:30:41,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-10-15 16:30:41,167 INFO L87 Difference]: Start difference. First operand 18635 states and 67700 transitions. Second operand 8 states. [2020-10-15 16:30:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:41,315 INFO L93 Difference]: Finished difference Result 18631 states and 67688 transitions. [2020-10-15 16:30:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:30:41,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-15 16:30:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:41,368 INFO L225 Difference]: With dead ends: 18631 [2020-10-15 16:30:41,368 INFO L226 Difference]: Without dead ends: 18631 [2020-10-15 16:30:41,369 INFO L677 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 [2020-10-15 16:30:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18631 states. [2020-10-15 16:30:42,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18631 to 18631. [2020-10-15 16:30:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18631 states. [2020-10-15 16:30:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18631 states to 18631 states and 67688 transitions. [2020-10-15 16:30:42,069 INFO L78 Accepts]: Start accepts. Automaton has 18631 states and 67688 transitions. Word has length 23 [2020-10-15 16:30:42,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:42,069 INFO L481 AbstractCegarLoop]: Abstraction has 18631 states and 67688 transitions. [2020-10-15 16:30:42,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:30:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 18631 states and 67688 transitions. [2020-10-15 16:30:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 16:30:42,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:42,070 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:42,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:30:42,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:42,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:42,272 INFO L82 PathProgramCache]: Analyzing trace with hash 872252755, now seen corresponding path program 1 times [2020-10-15 16:30:42,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:42,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332932689] [2020-10-15 16:30:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:42,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332932689] [2020-10-15 16:30:42,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878598128] [2020-10-15 16:30:42,320 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 [2020-10-15 16:30:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:42,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 16:30:42,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:42,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:42,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-15 16:30:42,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929787025] [2020-10-15 16:30:42,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 16:30:42,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:42,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 16:30:42,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-10-15 16:30:42,448 INFO L87 Difference]: Start difference. First operand 18631 states and 67688 transitions. Second operand 10 states. [2020-10-15 16:30:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:42,572 INFO L93 Difference]: Finished difference Result 18623 states and 67660 transitions. [2020-10-15 16:30:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:30:42,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-15 16:30:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:42,608 INFO L225 Difference]: With dead ends: 18623 [2020-10-15 16:30:42,608 INFO L226 Difference]: Without dead ends: 18623 [2020-10-15 16:30:42,609 INFO L677 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 [2020-10-15 16:30:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18623 states. [2020-10-15 16:30:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18623 to 18623. [2020-10-15 16:30:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18623 states. [2020-10-15 16:30:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18623 states to 18623 states and 67660 transitions. [2020-10-15 16:30:43,002 INFO L78 Accepts]: Start accepts. Automaton has 18623 states and 67660 transitions. Word has length 29 [2020-10-15 16:30:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:43,002 INFO L481 AbstractCegarLoop]: Abstraction has 18623 states and 67660 transitions. [2020-10-15 16:30:43,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 16:30:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 18623 states and 67660 transitions. [2020-10-15 16:30:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-15 16:30:43,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:43,004 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:43,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-10-15 16:30:43,205 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash -603243733, now seen corresponding path program 1 times [2020-10-15 16:30:43,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:43,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200291713] [2020-10-15 16:30:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:44,381 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 7 [2020-10-15 16:30:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:44,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200291713] [2020-10-15 16:30:44,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619985489] [2020-10-15 16:30:44,406 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 [2020-10-15 16:30:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:44,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-15 16:30:44,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:44,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:44,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-15 16:30:44,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619144058] [2020-10-15 16:30:44,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:30:44,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:30:44,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:30:44,550 INFO L87 Difference]: Start difference. First operand 18623 states and 67660 transitions. Second operand 12 states. [2020-10-15 16:30:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:44,699 INFO L93 Difference]: Finished difference Result 18607 states and 67596 transitions. [2020-10-15 16:30:44,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 16:30:44,699 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-15 16:30:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:44,735 INFO L225 Difference]: With dead ends: 18607 [2020-10-15 16:30:44,735 INFO L226 Difference]: Without dead ends: 18607 [2020-10-15 16:30:44,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:30:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18607 states. [2020-10-15 16:30:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18607 to 18607. [2020-10-15 16:30:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18607 states. [2020-10-15 16:30:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18607 states to 18607 states and 67596 transitions. [2020-10-15 16:30:45,099 INFO L78 Accepts]: Start accepts. Automaton has 18607 states and 67596 transitions. Word has length 35 [2020-10-15 16:30:45,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:45,099 INFO L481 AbstractCegarLoop]: Abstraction has 18607 states and 67596 transitions. [2020-10-15 16:30:45,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:30:45,099 INFO L276 IsEmpty]: Start isEmpty. Operand 18607 states and 67596 transitions. [2020-10-15 16:30:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 16:30:45,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:45,102 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:45,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:30:45,303 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:45,304 INFO L82 PathProgramCache]: Analyzing trace with hash -131017630, now seen corresponding path program 1 times [2020-10-15 16:30:45,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:45,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540006013] [2020-10-15 16:30:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:45,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540006013] [2020-10-15 16:30:45,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326205353] [2020-10-15 16:30:45,366 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 [2020-10-15 16:30:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:45,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 16:30:45,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:45,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:45,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-15 16:30:45,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208172112] [2020-10-15 16:30:45,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 16:30:45,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:45,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 16:30:45,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:30:45,540 INFO L87 Difference]: Start difference. First operand 18607 states and 67596 transitions. Second operand 14 states. [2020-10-15 16:30:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:45,695 INFO L93 Difference]: Finished difference Result 18575 states and 67452 transitions. [2020-10-15 16:30:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 16:30:45,695 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-15 16:30:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:45,731 INFO L225 Difference]: With dead ends: 18575 [2020-10-15 16:30:45,731 INFO L226 Difference]: Without dead ends: 18575 [2020-10-15 16:30:45,732 INFO L677 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 [2020-10-15 16:30:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18575 states. [2020-10-15 16:30:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18575 to 18575. [2020-10-15 16:30:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18575 states. [2020-10-15 16:30:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18575 states to 18575 states and 67452 transitions. [2020-10-15 16:30:46,277 INFO L78 Accepts]: Start accepts. Automaton has 18575 states and 67452 transitions. Word has length 41 [2020-10-15 16:30:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:46,277 INFO L481 AbstractCegarLoop]: Abstraction has 18575 states and 67452 transitions. [2020-10-15 16:30:46,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 16:30:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18575 states and 67452 transitions. [2020-10-15 16:30:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 16:30:46,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:46,284 INFO L422 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] [2020-10-15 16:30:46,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-10-15 16:30:46,493 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:46,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:46,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1557656136, now seen corresponding path program 1 times [2020-10-15 16:30:46,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:46,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520525289] [2020-10-15 16:30:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:46,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520525289] [2020-10-15 16:30:46,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279399607] [2020-10-15 16:30:46,573 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 [2020-10-15 16:30:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:30:46,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-15 16:30:46,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:30:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:30:46,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:30:46,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-15 16:30:46,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065199441] [2020-10-15 16:30:46,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 16:30:46,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:30:46,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 16:30:46,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-10-15 16:30:46,769 INFO L87 Difference]: Start difference. First operand 18575 states and 67452 transitions. Second operand 16 states. [2020-10-15 16:30:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:30:46,909 INFO L93 Difference]: Finished difference Result 18511 states and 67132 transitions. [2020-10-15 16:30:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 16:30:46,910 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-15 16:30:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:30:46,959 INFO L225 Difference]: With dead ends: 18511 [2020-10-15 16:30:46,959 INFO L226 Difference]: Without dead ends: 18511 [2020-10-15 16:30:46,959 INFO L677 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 [2020-10-15 16:30:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18511 states. [2020-10-15 16:30:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18511 to 18511. [2020-10-15 16:30:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18511 states. [2020-10-15 16:30:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18511 states to 18511 states and 67132 transitions. [2020-10-15 16:30:47,313 INFO L78 Accepts]: Start accepts. Automaton has 18511 states and 67132 transitions. Word has length 47 [2020-10-15 16:30:47,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:30:47,314 INFO L481 AbstractCegarLoop]: Abstraction has 18511 states and 67132 transitions. [2020-10-15 16:30:47,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 16:30:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 18511 states and 67132 transitions. [2020-10-15 16:30:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 16:30:47,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:30:47,318 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:30:47,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:30:47,533 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:30:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:30:47,533 INFO L82 PathProgramCache]: Analyzing trace with hash 230242214, now seen corresponding path program 1 times [2020-10-15 16:30:47,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:30:47,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969512960] [2020-10-15 16:30:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:30:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:30:47,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:30:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:30:47,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:30:47,578 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:30:47,578 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:30:47,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 16:30:47,579 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:30:47,579 WARN L371 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:30:47,579 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,589 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,590 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,591 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,592 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,593 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,594 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,595 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,596 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,597 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,597 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,597 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,598 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,598 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,598 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,599 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,600 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,600 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,600 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,600 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,601 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,601 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,601 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,601 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,602 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,603 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,603 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,603 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,604 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,604 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,604 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,604 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,605 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,605 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,605 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,606 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:30:47,611 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:30:47,611 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:30:47,611 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:30:47,611 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:30:47,611 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:30:47,612 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:30:47,612 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:30:47,612 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:30:47,612 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:30:47,613 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:30:47,613 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 126 transitions, 372 flow [2020-10-15 16:30:47,613 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 126 transitions, 372 flow [2020-10-15 16:30:47,614 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 128 places, 126 transitions, 372 flow [2020-10-15 16:30:48,807 INFO L129 PetriNetUnfolder]: 1812/9659 cut-off events. [2020-10-15 16:30:48,807 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2020-10-15 16:30:48,871 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. [2020-10-15 16:30:49,074 INFO L117 LiptonReduction]: Number of co-enabled transitions 4640 [2020-10-15 16:30:49,237 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:49,267 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,281 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:49,281 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,282 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:49,289 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,307 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:49,311 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:49,326 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:49,327 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:51,464 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,483 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:51,487 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,502 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:51,503 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,503 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:51,509 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,528 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:51,531 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:51,547 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:51,547 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:30:54,299 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,323 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:54,327 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:54,348 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,348 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:54,356 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,382 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:54,385 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:54,416 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:54,416 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:56,575 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,599 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:56,603 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:56,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,624 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:56,634 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:56,664 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,683 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:56,684 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:56,684 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:30:59,130 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:59,175 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,208 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:59,208 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,208 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:30:59,217 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:59,253 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,280 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:30:59,281 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:30:59,281 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:01,380 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:01,419 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:01,449 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,450 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:01,456 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:01,494 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:01,525 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:01,525 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:03,754 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,803 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:03,808 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,844 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:03,845 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,845 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:03,855 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,890 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:03,894 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:03,921 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:03,921 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:05,956 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:05,986 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:05,990 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:06,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:06,019 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:06,019 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:06,027 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:06,057 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:06,061 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:06,092 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:06,093 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:06,093 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:08,524 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-15 16:31:08,626 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-15 16:31:08,755 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,791 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,793 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,823 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,823 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:08,835 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,874 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,903 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,903 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,903 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:08,914 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,951 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,955 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,982 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:08,982 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:08,983 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:08,990 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,025 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,028 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,060 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,061 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,061 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:09,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,122 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,151 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,152 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:09,158 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,195 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,202 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,233 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,234 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,234 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:09,248 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,279 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,282 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,308 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,308 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,309 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:09,317 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,355 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:09,385 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:31:09,385 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:86 [2020-10-15 16:31:09,657 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-15 16:31:09,771 INFO L132 LiptonReduction]: Checked pairs total: 9733 [2020-10-15 16:31:09,771 INFO L134 LiptonReduction]: Total number of compositions: 104 [2020-10-15 16:31:09,772 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 40 transitions, 200 flow [2020-10-15 16:31:16,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 55297 states. [2020-10-15 16:31:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 55297 states. [2020-10-15 16:31:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:31:16,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:16,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:31:16,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:16,228 INFO L82 PathProgramCache]: Analyzing trace with hash 54894463, now seen corresponding path program 1 times [2020-10-15 16:31:16,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:16,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930191124] [2020-10-15 16:31:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:31:16,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930191124] [2020-10-15 16:31:16,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:31:16,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:31:16,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463571074] [2020-10-15 16:31:16,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:31:16,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:16,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:31:16,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:31:16,245 INFO L87 Difference]: Start difference. First operand 55297 states. Second operand 3 states. [2020-10-15 16:31:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:16,518 INFO L93 Difference]: Finished difference Result 55297 states and 222749 transitions. [2020-10-15 16:31:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:31:16,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:31:16,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:16,642 INFO L225 Difference]: With dead ends: 55297 [2020-10-15 16:31:16,642 INFO L226 Difference]: Without dead ends: 48734 [2020-10-15 16:31:16,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:31:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48734 states. [2020-10-15 16:31:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48734 to 48734. [2020-10-15 16:31:18,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48734 states. [2020-10-15 16:31:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48734 states to 48734 states and 198690 transitions. [2020-10-15 16:31:18,427 INFO L78 Accepts]: Start accepts. Automaton has 48734 states and 198690 transitions. Word has length 4 [2020-10-15 16:31:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:18,427 INFO L481 AbstractCegarLoop]: Abstraction has 48734 states and 198690 transitions. [2020-10-15 16:31:18,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:31:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 48734 states and 198690 transitions. [2020-10-15 16:31:18,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:31:18,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:18,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:18,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 16:31:18,430 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:18,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1411257051, now seen corresponding path program 1 times [2020-10-15 16:31:18,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:18,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118886015] [2020-10-15 16:31:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:31:18,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118886015] [2020-10-15 16:31:18,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:31:18,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:31:18,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530806215] [2020-10-15 16:31:18,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:31:18,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:18,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:31:18,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:31:18,453 INFO L87 Difference]: Start difference. First operand 48734 states and 198690 transitions. Second operand 4 states. [2020-10-15 16:31:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:18,708 INFO L93 Difference]: Finished difference Result 56827 states and 227865 transitions. [2020-10-15 16:31:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:31:18,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:31:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:18,841 INFO L225 Difference]: With dead ends: 56827 [2020-10-15 16:31:18,841 INFO L226 Difference]: Without dead ends: 56827 [2020-10-15 16:31:18,841 INFO L677 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 [2020-10-15 16:31:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56827 states. [2020-10-15 16:31:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56827 to 54781. [2020-10-15 16:31:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54781 states. [2020-10-15 16:31:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54781 states to 54781 states and 219674 transitions. [2020-10-15 16:31:23,511 INFO L78 Accepts]: Start accepts. Automaton has 54781 states and 219674 transitions. Word has length 10 [2020-10-15 16:31:23,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:23,511 INFO L481 AbstractCegarLoop]: Abstraction has 54781 states and 219674 transitions. [2020-10-15 16:31:23,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:31:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 54781 states and 219674 transitions. [2020-10-15 16:31:23,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:31:23,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:23,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:23,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-15 16:31:23,511 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:23,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:23,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1775097937, now seen corresponding path program 1 times [2020-10-15 16:31:23,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:23,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427406573] [2020-10-15 16:31:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:23,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427406573] [2020-10-15 16:31:23,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755604567] [2020-10-15 16:31:23,537 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 [2020-10-15 16:31:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:23,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:31:23,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:23,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:23,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-15 16:31:23,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299648977] [2020-10-15 16:31:23,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:31:23,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:23,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:31:23,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:31:23,661 INFO L87 Difference]: Start difference. First operand 54781 states and 219674 transitions. Second operand 6 states. [2020-10-15 16:31:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:24,100 INFO L93 Difference]: Finished difference Result 54779 states and 219669 transitions. [2020-10-15 16:31:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:31:24,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 16:31:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:24,851 INFO L225 Difference]: With dead ends: 54779 [2020-10-15 16:31:24,851 INFO L226 Difference]: Without dead ends: 54779 [2020-10-15 16:31:24,852 INFO L677 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 [2020-10-15 16:31:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54779 states. [2020-10-15 16:31:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54779 to 54779. [2020-10-15 16:31:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54779 states. [2020-10-15 16:31:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54779 states to 54779 states and 219669 transitions. [2020-10-15 16:31:27,164 INFO L78 Accepts]: Start accepts. Automaton has 54779 states and 219669 transitions. Word has length 17 [2020-10-15 16:31:27,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:27,164 INFO L481 AbstractCegarLoop]: Abstraction has 54779 states and 219669 transitions. [2020-10-15 16:31:27,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:31:27,164 INFO L276 IsEmpty]: Start isEmpty. Operand 54779 states and 219669 transitions. [2020-10-15 16:31:27,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:31:27,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:27,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:27,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-10-15 16:31:27,366 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash 911691700, now seen corresponding path program 1 times [2020-10-15 16:31:27,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:27,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102729239] [2020-10-15 16:31:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:27,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102729239] [2020-10-15 16:31:27,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284090996] [2020-10-15 16:31:27,396 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 [2020-10-15 16:31:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:27,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:31:27,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:27,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:27,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-15 16:31:27,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705446737] [2020-10-15 16:31:27,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:31:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:27,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:31:27,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-10-15 16:31:27,512 INFO L87 Difference]: Start difference. First operand 54779 states and 219669 transitions. Second operand 8 states. [2020-10-15 16:31:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:27,772 INFO L93 Difference]: Finished difference Result 54775 states and 219657 transitions. [2020-10-15 16:31:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:31:27,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-15 16:31:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:27,900 INFO L225 Difference]: With dead ends: 54775 [2020-10-15 16:31:27,900 INFO L226 Difference]: Without dead ends: 54775 [2020-10-15 16:31:27,900 INFO L677 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 [2020-10-15 16:31:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54775 states. [2020-10-15 16:31:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54775 to 54775. [2020-10-15 16:31:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54775 states. [2020-10-15 16:31:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54775 states to 54775 states and 219657 transitions. [2020-10-15 16:31:32,383 INFO L78 Accepts]: Start accepts. Automaton has 54775 states and 219657 transitions. Word has length 23 [2020-10-15 16:31:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:32,383 INFO L481 AbstractCegarLoop]: Abstraction has 54775 states and 219657 transitions. [2020-10-15 16:31:32,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:31:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 54775 states and 219657 transitions. [2020-10-15 16:31:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 16:31:32,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:32,384 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:32,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2020-10-15 16:31:32,585 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:32,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1882146136, now seen corresponding path program 1 times [2020-10-15 16:31:32,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:32,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909309235] [2020-10-15 16:31:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:32,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909309235] [2020-10-15 16:31:32,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137927343] [2020-10-15 16:31:32,634 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 [2020-10-15 16:31:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:32,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 16:31:32,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:32,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:32,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-15 16:31:32,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726526226] [2020-10-15 16:31:32,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 16:31:32,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:32,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 16:31:32,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-10-15 16:31:32,771 INFO L87 Difference]: Start difference. First operand 54775 states and 219657 transitions. Second operand 10 states. [2020-10-15 16:31:33,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:33,032 INFO L93 Difference]: Finished difference Result 54767 states and 219629 transitions. [2020-10-15 16:31:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:31:33,032 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-15 16:31:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:33,160 INFO L225 Difference]: With dead ends: 54767 [2020-10-15 16:31:33,160 INFO L226 Difference]: Without dead ends: 54767 [2020-10-15 16:31:33,160 INFO L677 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 [2020-10-15 16:31:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54767 states. [2020-10-15 16:31:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54767 to 54767. [2020-10-15 16:31:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54767 states. [2020-10-15 16:31:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54767 states to 54767 states and 219629 transitions. [2020-10-15 16:31:35,089 INFO L78 Accepts]: Start accepts. Automaton has 54767 states and 219629 transitions. Word has length 29 [2020-10-15 16:31:35,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:35,089 INFO L481 AbstractCegarLoop]: Abstraction has 54767 states and 219629 transitions. [2020-10-15 16:31:35,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 16:31:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 54767 states and 219629 transitions. [2020-10-15 16:31:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-15 16:31:35,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:35,090 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:35,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:31:35,291 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:35,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:35,292 INFO L82 PathProgramCache]: Analyzing trace with hash -290777765, now seen corresponding path program 1 times [2020-10-15 16:31:35,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:35,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893725038] [2020-10-15 16:31:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:35,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893725038] [2020-10-15 16:31:35,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835193184] [2020-10-15 16:31:35,339 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 [2020-10-15 16:31:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:35,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-15 16:31:35,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:35,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:35,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-15 16:31:35,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631983616] [2020-10-15 16:31:35,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:31:35,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:35,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:31:35,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:31:35,487 INFO L87 Difference]: Start difference. First operand 54767 states and 219629 transitions. Second operand 12 states. [2020-10-15 16:31:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:35,762 INFO L93 Difference]: Finished difference Result 54751 states and 219565 transitions. [2020-10-15 16:31:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 16:31:35,762 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-15 16:31:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:35,891 INFO L225 Difference]: With dead ends: 54751 [2020-10-15 16:31:35,891 INFO L226 Difference]: Without dead ends: 54751 [2020-10-15 16:31:35,891 INFO L677 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 [2020-10-15 16:31:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54751 states. [2020-10-15 16:31:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54751 to 54751. [2020-10-15 16:31:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54751 states. [2020-10-15 16:31:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54751 states to 54751 states and 219565 transitions. [2020-10-15 16:31:38,064 INFO L78 Accepts]: Start accepts. Automaton has 54751 states and 219565 transitions. Word has length 35 [2020-10-15 16:31:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:38,065 INFO L481 AbstractCegarLoop]: Abstraction has 54751 states and 219565 transitions. [2020-10-15 16:31:38,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:31:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 54751 states and 219565 transitions. [2020-10-15 16:31:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 16:31:38,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:38,067 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:38,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-10-15 16:31:38,268 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:38,268 INFO L82 PathProgramCache]: Analyzing trace with hash 460274813, now seen corresponding path program 1 times [2020-10-15 16:31:38,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:38,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681884647] [2020-10-15 16:31:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:38,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681884647] [2020-10-15 16:31:38,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177883436] [2020-10-15 16:31:38,333 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 [2020-10-15 16:31:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:38,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 16:31:38,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:38,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:38,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-15 16:31:38,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477103414] [2020-10-15 16:31:38,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 16:31:38,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:38,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 16:31:38,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:31:38,506 INFO L87 Difference]: Start difference. First operand 54751 states and 219565 transitions. Second operand 14 states. [2020-10-15 16:31:38,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:38,797 INFO L93 Difference]: Finished difference Result 54719 states and 219421 transitions. [2020-10-15 16:31:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 16:31:38,798 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-15 16:31:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:38,931 INFO L225 Difference]: With dead ends: 54719 [2020-10-15 16:31:38,931 INFO L226 Difference]: Without dead ends: 54719 [2020-10-15 16:31:38,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:31:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54719 states. [2020-10-15 16:31:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54719 to 54719. [2020-10-15 16:31:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54719 states. [2020-10-15 16:31:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54719 states to 54719 states and 219421 transitions. [2020-10-15 16:31:40,877 INFO L78 Accepts]: Start accepts. Automaton has 54719 states and 219421 transitions. Word has length 41 [2020-10-15 16:31:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:40,877 INFO L481 AbstractCegarLoop]: Abstraction has 54719 states and 219421 transitions. [2020-10-15 16:31:40,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 16:31:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 54719 states and 219421 transitions. [2020-10-15 16:31:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 16:31:40,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:40,882 INFO L422 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] [2020-10-15 16:31:41,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-10-15 16:31:41,083 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:41,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:41,083 INFO L82 PathProgramCache]: Analyzing trace with hash -964712578, now seen corresponding path program 1 times [2020-10-15 16:31:41,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:41,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449300269] [2020-10-15 16:31:41,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:41,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449300269] [2020-10-15 16:31:41,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100881491] [2020-10-15 16:31:41,154 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 [2020-10-15 16:31:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:41,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-15 16:31:41,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:41,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:41,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-15 16:31:41,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971216918] [2020-10-15 16:31:41,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 16:31:41,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:41,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 16:31:41,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-10-15 16:31:41,353 INFO L87 Difference]: Start difference. First operand 54719 states and 219421 transitions. Second operand 16 states. [2020-10-15 16:31:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:41,653 INFO L93 Difference]: Finished difference Result 54655 states and 219101 transitions. [2020-10-15 16:31:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 16:31:41,654 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-15 16:31:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:41,780 INFO L225 Difference]: With dead ends: 54655 [2020-10-15 16:31:41,780 INFO L226 Difference]: Without dead ends: 54655 [2020-10-15 16:31:41,780 INFO L677 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 [2020-10-15 16:31:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54655 states. [2020-10-15 16:31:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54655 to 54655. [2020-10-15 16:31:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54655 states. [2020-10-15 16:31:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54655 states to 54655 states and 219101 transitions. [2020-10-15 16:31:43,730 INFO L78 Accepts]: Start accepts. Automaton has 54655 states and 219101 transitions. Word has length 47 [2020-10-15 16:31:43,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:43,730 INFO L481 AbstractCegarLoop]: Abstraction has 54655 states and 219101 transitions. [2020-10-15 16:31:43,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 16:31:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 54655 states and 219101 transitions. [2020-10-15 16:31:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-15 16:31:43,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:43,739 INFO L422 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] [2020-10-15 16:31:43,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:31:43,946 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:43,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1558950686, now seen corresponding path program 1 times [2020-10-15 16:31:43,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:43,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641776098] [2020-10-15 16:31:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:44,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641776098] [2020-10-15 16:31:44,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763252584] [2020-10-15 16:31:44,030 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 [2020-10-15 16:31:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:31:44,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 16:31:44,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:31:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:31:44,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:31:44,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-15 16:31:44,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307123287] [2020-10-15 16:31:44,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 16:31:44,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:31:44,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 16:31:44,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-10-15 16:31:44,235 INFO L87 Difference]: Start difference. First operand 54655 states and 219101 transitions. Second operand 18 states. [2020-10-15 16:31:44,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:31:44,567 INFO L93 Difference]: Finished difference Result 54527 states and 218397 transitions. [2020-10-15 16:31:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 16:31:44,567 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2020-10-15 16:31:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:31:44,703 INFO L225 Difference]: With dead ends: 54527 [2020-10-15 16:31:44,703 INFO L226 Difference]: Without dead ends: 54527 [2020-10-15 16:31:44,704 INFO L677 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 [2020-10-15 16:31:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54527 states. [2020-10-15 16:31:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54527 to 54527. [2020-10-15 16:31:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54527 states. [2020-10-15 16:31:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54527 states to 54527 states and 218397 transitions. [2020-10-15 16:31:46,643 INFO L78 Accepts]: Start accepts. Automaton has 54527 states and 218397 transitions. Word has length 53 [2020-10-15 16:31:46,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:31:46,643 INFO L481 AbstractCegarLoop]: Abstraction has 54527 states and 218397 transitions. [2020-10-15 16:31:46,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 16:31:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand 54527 states and 218397 transitions. [2020-10-15 16:31:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-15 16:31:46,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:31:46,649 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:31:46,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-10-15 16:31:46,856 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:31:46,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:31:46,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1378182391, now seen corresponding path program 1 times [2020-10-15 16:31:46,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:31:46,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038451350] [2020-10-15 16:31:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:31:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:31:46,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:31:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:31:46,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:31:46,908 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:31:46,908 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:31:46,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 16:31:46,908 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:31:46,909 WARN L371 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:31:46,909 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,921 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,922 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,923 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,924 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,925 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,926 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,927 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,928 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,928 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,928 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,928 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,928 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,930 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,930 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,930 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,930 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,931 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,931 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,931 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,931 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,932 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,933 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,933 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,933 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,934 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,934 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,934 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,934 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,935 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,935 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,935 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,936 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,937 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,937 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,937 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,937 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,938 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,938 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,938 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,939 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,939 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,940 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,940 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,940 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:31:46,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:31:46,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:31:46,946 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:31:46,947 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:31:46,947 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:31:46,947 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:31:46,947 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:31:46,947 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:31:46,947 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:31:46,948 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:31:46,948 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 132 transitions, 408 flow [2020-10-15 16:31:46,949 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 132 transitions, 408 flow [2020-10-15 16:31:46,949 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 135 places, 132 transitions, 408 flow [2020-10-15 16:31:49,347 INFO L129 PetriNetUnfolder]: 3862/19406 cut-off events. [2020-10-15 16:31:49,348 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2020-10-15 16:31:49,420 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. [2020-10-15 16:31:49,797 INFO L117 LiptonReduction]: Number of co-enabled transitions 5472 [2020-10-15 16:31:49,838 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,856 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:49,859 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:49,877 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,877 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:31:49,884 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,903 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:49,906 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,921 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:49,921 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:49,921 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:31:52,644 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,674 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:52,678 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:52,700 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,700 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:31:52,708 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,734 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:52,737 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,761 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:52,762 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:52,762 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:31:55,087 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,116 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:55,121 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,154 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:55,155 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,155 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:31:55,168 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,195 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:55,198 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:55,225 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:55,225 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:31:57,585 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,636 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:57,640 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,676 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:57,677 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,677 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:31:57,691 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,724 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:57,736 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:31:57,767 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:31:57,768 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:00,063 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:00,106 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:00,136 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,136 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:00,144 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,176 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:00,181 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,213 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:00,214 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:00,214 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:02,626 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-15 16:32:02,707 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,739 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:02,743 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,773 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:02,773 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,774 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:02,783 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,815 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:02,819 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,849 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:02,849 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:02,850 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:04,976 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:05,011 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:05,040 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,040 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:05,050 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,086 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:05,090 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:32:05,120 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:32:05,120 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:32:07,411 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-15 16:32:07,726 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-15 16:32:07,831 INFO L132 LiptonReduction]: Checked pairs total: 11917 [2020-10-15 16:32:07,831 INFO L134 LiptonReduction]: Total number of compositions: 104 [2020-10-15 16:32:07,831 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 43 transitions, 230 flow [2020-10-15 16:32:49,672 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 163089 states. [2020-10-15 16:32:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 163089 states. [2020-10-15 16:32:49,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:32:49,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:32:49,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:32:49,673 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:32:49,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:32:49,674 INFO L82 PathProgramCache]: Analyzing trace with hash 62348159, now seen corresponding path program 1 times [2020-10-15 16:32:49,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:32:49,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445521572] [2020-10-15 16:32:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:32:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:32:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:32:49,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445521572] [2020-10-15 16:32:49,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:32:49,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:32:49,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038413636] [2020-10-15 16:32:49,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:32:49,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:32:49,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:32:49,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:32:49,690 INFO L87 Difference]: Start difference. First operand 163089 states. Second operand 3 states. [2020-10-15 16:32:53,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:32:53,121 INFO L93 Difference]: Finished difference Result 163089 states and 717318 transitions. [2020-10-15 16:32:53,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:32:53,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:32:53,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:32:53,575 INFO L225 Difference]: With dead ends: 163089 [2020-10-15 16:32:53,575 INFO L226 Difference]: Without dead ends: 143404 [2020-10-15 16:32:53,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:32:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143404 states. [2020-10-15 16:32:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143404 to 143404. [2020-10-15 16:32:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143404 states. [2020-10-15 16:33:00,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143404 states to 143404 states and 638584 transitions. [2020-10-15 16:33:00,370 INFO L78 Accepts]: Start accepts. Automaton has 143404 states and 638584 transitions. Word has length 4 [2020-10-15 16:33:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:33:00,370 INFO L481 AbstractCegarLoop]: Abstraction has 143404 states and 638584 transitions. [2020-10-15 16:33:00,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:33:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 143404 states and 638584 transitions. [2020-10-15 16:33:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:33:00,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:33:00,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:33:00,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 16:33:00,371 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:33:00,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:33:00,371 INFO L82 PathProgramCache]: Analyzing trace with hash 288657511, now seen corresponding path program 1 times [2020-10-15 16:33:00,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:33:00,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738085828] [2020-10-15 16:33:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:33:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:33:00,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738085828] [2020-10-15 16:33:00,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:33:00,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:33:00,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555487328] [2020-10-15 16:33:00,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 16:33:00,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:33:00,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 16:33:00,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 16:33:00,394 INFO L87 Difference]: Start difference. First operand 143404 states and 638584 transitions. Second operand 4 states. [2020-10-15 16:33:08,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:33:08,354 INFO L93 Difference]: Finished difference Result 166667 states and 731394 transitions. [2020-10-15 16:33:08,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:33:08,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 16:33:08,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:33:08,871 INFO L225 Difference]: With dead ends: 166667 [2020-10-15 16:33:08,872 INFO L226 Difference]: Without dead ends: 166667 [2020-10-15 16:33:08,872 INFO L677 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 [2020-10-15 16:33:12,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166667 states. [2020-10-15 16:33:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166667 to 162061. [2020-10-15 16:33:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162061 states. [2020-10-15 16:33:16,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162061 states to 162061 states and 710659 transitions. [2020-10-15 16:33:16,592 INFO L78 Accepts]: Start accepts. Automaton has 162061 states and 710659 transitions. Word has length 10 [2020-10-15 16:33:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:33:16,592 INFO L481 AbstractCegarLoop]: Abstraction has 162061 states and 710659 transitions. [2020-10-15 16:33:16,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 16:33:16,592 INFO L276 IsEmpty]: Start isEmpty. Operand 162061 states and 710659 transitions. [2020-10-15 16:33:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:33:16,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:33:16,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:33:16,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 16:33:16,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:33:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:33:16,593 INFO L82 PathProgramCache]: Analyzing trace with hash 941132211, now seen corresponding path program 1 times [2020-10-15 16:33:16,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:33:16,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579220506] [2020-10-15 16:33:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:33:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:16,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579220506] [2020-10-15 16:33:16,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410635511] [2020-10-15 16:33:16,616 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 [2020-10-15 16:33:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:16,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:33:16,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:33:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:16,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:33:16,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-15 16:33:16,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875126998] [2020-10-15 16:33:16,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:33:16,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:33:16,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:33:16,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:33:16,735 INFO L87 Difference]: Start difference. First operand 162061 states and 710659 transitions. Second operand 6 states. [2020-10-15 16:33:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:33:17,556 INFO L93 Difference]: Finished difference Result 162059 states and 710654 transitions. [2020-10-15 16:33:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 16:33:17,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 16:33:17,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:33:25,479 INFO L225 Difference]: With dead ends: 162059 [2020-10-15 16:33:25,479 INFO L226 Difference]: Without dead ends: 162059 [2020-10-15 16:33:25,479 INFO L677 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 [2020-10-15 16:33:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162059 states. [2020-10-15 16:33:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162059 to 162059. [2020-10-15 16:33:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162059 states. [2020-10-15 16:33:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162059 states to 162059 states and 710654 transitions. [2020-10-15 16:33:32,439 INFO L78 Accepts]: Start accepts. Automaton has 162059 states and 710654 transitions. Word has length 17 [2020-10-15 16:33:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:33:32,439 INFO L481 AbstractCegarLoop]: Abstraction has 162059 states and 710654 transitions. [2020-10-15 16:33:32,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:33:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 162059 states and 710654 transitions. [2020-10-15 16:33:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 16:33:32,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:33:32,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:33:32,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:33:32,646 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:33:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:33:32,647 INFO L82 PathProgramCache]: Analyzing trace with hash -220199302, now seen corresponding path program 1 times [2020-10-15 16:33:32,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:33:32,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967288199] [2020-10-15 16:33:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:33:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:32,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967288199] [2020-10-15 16:33:32,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359307570] [2020-10-15 16:33:32,672 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 [2020-10-15 16:33:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:32,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 16:33:32,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:33:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:32,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:33:32,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-15 16:33:32,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555555676] [2020-10-15 16:33:32,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:33:32,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:33:32,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:33:32,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-10-15 16:33:32,800 INFO L87 Difference]: Start difference. First operand 162059 states and 710654 transitions. Second operand 8 states. [2020-10-15 16:33:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:33:33,642 INFO L93 Difference]: Finished difference Result 162055 states and 710642 transitions. [2020-10-15 16:33:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:33:33,642 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-15 16:33:33,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:33:34,105 INFO L225 Difference]: With dead ends: 162055 [2020-10-15 16:33:34,105 INFO L226 Difference]: Without dead ends: 162055 [2020-10-15 16:33:34,105 INFO L677 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 [2020-10-15 16:33:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162055 states. [2020-10-15 16:33:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162055 to 162055. [2020-10-15 16:33:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162055 states. [2020-10-15 16:33:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162055 states to 162055 states and 710642 transitions. [2020-10-15 16:33:53,705 INFO L78 Accepts]: Start accepts. Automaton has 162055 states and 710642 transitions. Word has length 23 [2020-10-15 16:33:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:33:53,706 INFO L481 AbstractCegarLoop]: Abstraction has 162055 states and 710642 transitions. [2020-10-15 16:33:53,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:33:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 162055 states and 710642 transitions. [2020-10-15 16:33:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 16:33:53,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:33:53,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:33:53,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-10-15 16:33:53,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:33:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:33:53,908 INFO L82 PathProgramCache]: Analyzing trace with hash -406571168, now seen corresponding path program 1 times [2020-10-15 16:33:53,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:33:53,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219288820] [2020-10-15 16:33:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:33:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:53,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219288820] [2020-10-15 16:33:53,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856171273] [2020-10-15 16:33:53,949 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 [2020-10-15 16:33:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:33:54,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 16:33:54,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:33:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:33:54,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:33:54,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-15 16:33:54,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903175531] [2020-10-15 16:33:54,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 16:33:54,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:33:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 16:33:54,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-10-15 16:33:54,090 INFO L87 Difference]: Start difference. First operand 162055 states and 710642 transitions. Second operand 10 states. [2020-10-15 16:33:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:33:54,960 INFO L93 Difference]: Finished difference Result 162047 states and 710614 transitions. [2020-10-15 16:33:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:33:54,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-15 16:33:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:33:55,424 INFO L225 Difference]: With dead ends: 162047 [2020-10-15 16:33:55,425 INFO L226 Difference]: Without dead ends: 162047 [2020-10-15 16:33:55,425 INFO L677 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 [2020-10-15 16:33:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162047 states. [2020-10-15 16:34:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162047 to 162047. [2020-10-15 16:34:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162047 states. [2020-10-15 16:34:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162047 states to 162047 states and 710614 transitions. [2020-10-15 16:34:03,060 INFO L78 Accepts]: Start accepts. Automaton has 162047 states and 710614 transitions. Word has length 29 [2020-10-15 16:34:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:34:03,060 INFO L481 AbstractCegarLoop]: Abstraction has 162047 states and 710614 transitions. [2020-10-15 16:34:03,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 16:34:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 162047 states and 710614 transitions. [2020-10-15 16:34:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-15 16:34:03,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:34:03,062 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:34:03,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:34:03,263 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:34:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:34:03,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1531922725, now seen corresponding path program 1 times [2020-10-15 16:34:03,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:34:03,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837880853] [2020-10-15 16:34:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:34:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:03,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837880853] [2020-10-15 16:34:03,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888689090] [2020-10-15 16:34:03,309 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 [2020-10-15 16:34:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:03,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-15 16:34:03,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:34:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:03,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:34:03,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-10-15 16:34:03,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107857877] [2020-10-15 16:34:03,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:34:03,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:34:03,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:34:03,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:34:03,487 INFO L87 Difference]: Start difference. First operand 162047 states and 710614 transitions. Second operand 12 states. [2020-10-15 16:34:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:34:04,352 INFO L93 Difference]: Finished difference Result 162031 states and 710550 transitions. [2020-10-15 16:34:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 16:34:04,353 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-15 16:34:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:34:04,822 INFO L225 Difference]: With dead ends: 162031 [2020-10-15 16:34:04,822 INFO L226 Difference]: Without dead ends: 162031 [2020-10-15 16:34:04,822 INFO L677 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 [2020-10-15 16:34:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162031 states. [2020-10-15 16:34:12,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162031 to 162031. [2020-10-15 16:34:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162031 states. [2020-10-15 16:34:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162031 states to 162031 states and 710550 transitions. [2020-10-15 16:34:23,380 INFO L78 Accepts]: Start accepts. Automaton has 162031 states and 710550 transitions. Word has length 35 [2020-10-15 16:34:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:34:23,380 INFO L481 AbstractCegarLoop]: Abstraction has 162031 states and 710550 transitions. [2020-10-15 16:34:23,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:34:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 162031 states and 710550 transitions. [2020-10-15 16:34:23,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 16:34:23,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:34:23,383 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:34:23,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-10-15 16:34:23,584 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:34:23,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:34:23,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1050224503, now seen corresponding path program 1 times [2020-10-15 16:34:23,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:34:23,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46560069] [2020-10-15 16:34:23,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:34:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:23,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46560069] [2020-10-15 16:34:23,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912111943] [2020-10-15 16:34:23,641 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 [2020-10-15 16:34:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:23,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 16:34:23,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:34:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:23,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:34:23,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-15 16:34:23,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545172015] [2020-10-15 16:34:23,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 16:34:23,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:34:23,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 16:34:23,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:34:23,839 INFO L87 Difference]: Start difference. First operand 162031 states and 710550 transitions. Second operand 14 states. [2020-10-15 16:34:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:34:24,755 INFO L93 Difference]: Finished difference Result 161999 states and 710406 transitions. [2020-10-15 16:34:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 16:34:24,756 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-15 16:34:24,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:34:25,220 INFO L225 Difference]: With dead ends: 161999 [2020-10-15 16:34:25,221 INFO L226 Difference]: Without dead ends: 161999 [2020-10-15 16:34:25,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:34:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161999 states. [2020-10-15 16:34:32,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161999 to 161999. [2020-10-15 16:34:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161999 states. [2020-10-15 16:34:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161999 states to 161999 states and 710406 transitions. [2020-10-15 16:34:32,901 INFO L78 Accepts]: Start accepts. Automaton has 161999 states and 710406 transitions. Word has length 41 [2020-10-15 16:34:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:34:32,902 INFO L481 AbstractCegarLoop]: Abstraction has 161999 states and 710406 transitions. [2020-10-15 16:34:32,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 16:34:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 161999 states and 710406 transitions. [2020-10-15 16:34:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 16:34:32,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:34:32,906 INFO L422 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] [2020-10-15 16:34:33,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:34:33,107 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:34:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:34:33,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1190654540, now seen corresponding path program 1 times [2020-10-15 16:34:33,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:34:33,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757031955] [2020-10-15 16:34:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:34:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:33,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757031955] [2020-10-15 16:34:33,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598899242] [2020-10-15 16:34:33,174 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 [2020-10-15 16:34:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:33,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-15 16:34:33,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:34:33,474 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:33,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:34:33,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-10-15 16:34:33,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627319835] [2020-10-15 16:34:33,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 16:34:33,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:34:33,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 16:34:33,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-10-15 16:34:33,477 INFO L87 Difference]: Start difference. First operand 161999 states and 710406 transitions. Second operand 16 states. [2020-10-15 16:34:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:34:34,641 INFO L93 Difference]: Finished difference Result 161935 states and 710086 transitions. [2020-10-15 16:34:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 16:34:34,641 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2020-10-15 16:34:34,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:34:36,961 INFO L225 Difference]: With dead ends: 161935 [2020-10-15 16:34:36,962 INFO L226 Difference]: Without dead ends: 161935 [2020-10-15 16:34:36,962 INFO L677 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 [2020-10-15 16:34:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161935 states. [2020-10-15 16:34:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161935 to 161935. [2020-10-15 16:34:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161935 states. [2020-10-15 16:34:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161935 states to 161935 states and 710086 transitions. [2020-10-15 16:34:45,592 INFO L78 Accepts]: Start accepts. Automaton has 161935 states and 710086 transitions. Word has length 47 [2020-10-15 16:34:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:34:45,592 INFO L481 AbstractCegarLoop]: Abstraction has 161935 states and 710086 transitions. [2020-10-15 16:34:45,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 16:34:45,593 INFO L276 IsEmpty]: Start isEmpty. Operand 161935 states and 710086 transitions. [2020-10-15 16:34:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-15 16:34:45,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:34:45,601 INFO L422 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] [2020-10-15 16:34:45,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-10-15 16:34:45,813 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:34:45,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:34:45,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1789072174, now seen corresponding path program 1 times [2020-10-15 16:34:45,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:34:45,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276391334] [2020-10-15 16:34:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:34:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:45,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276391334] [2020-10-15 16:34:45,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093703697] [2020-10-15 16:34:45,899 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 [2020-10-15 16:34:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:46,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 16:34:46,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:34:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:46,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:34:46,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-15 16:34:46,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327643544] [2020-10-15 16:34:46,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 16:34:46,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:34:46,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 16:34:46,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-10-15 16:34:46,197 INFO L87 Difference]: Start difference. First operand 161935 states and 710086 transitions. Second operand 18 states. [2020-10-15 16:34:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:34:47,414 INFO L93 Difference]: Finished difference Result 161807 states and 709382 transitions. [2020-10-15 16:34:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 16:34:47,414 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 53 [2020-10-15 16:34:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:34:47,879 INFO L225 Difference]: With dead ends: 161807 [2020-10-15 16:34:47,879 INFO L226 Difference]: Without dead ends: 161807 [2020-10-15 16:34:47,879 INFO L677 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 [2020-10-15 16:34:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161807 states. [2020-10-15 16:34:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161807 to 161807. [2020-10-15 16:34:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161807 states. [2020-10-15 16:34:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161807 states to 161807 states and 709382 transitions. [2020-10-15 16:34:57,578 INFO L78 Accepts]: Start accepts. Automaton has 161807 states and 709382 transitions. Word has length 53 [2020-10-15 16:34:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:34:57,579 INFO L481 AbstractCegarLoop]: Abstraction has 161807 states and 709382 transitions. [2020-10-15 16:34:57,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 16:34:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 161807 states and 709382 transitions. [2020-10-15 16:34:57,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-15 16:34:57,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:34:57,601 INFO L422 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] [2020-10-15 16:34:57,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:34:57,807 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:34:57,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:34:57,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1684547567, now seen corresponding path program 1 times [2020-10-15 16:34:57,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:34:57,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973690249] [2020-10-15 16:34:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:34:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:57,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973690249] [2020-10-15 16:34:57,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947790820] [2020-10-15 16:34:57,906 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 [2020-10-15 16:34:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:34:58,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-15 16:34:58,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:34:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:34:58,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:34:58,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2020-10-15 16:34:58,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578435212] [2020-10-15 16:34:58,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 16:34:58,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:34:58,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 16:34:58,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-10-15 16:34:58,159 INFO L87 Difference]: Start difference. First operand 161807 states and 709382 transitions. Second operand 20 states. [2020-10-15 16:34:59,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:34:59,293 INFO L93 Difference]: Finished difference Result 161551 states and 707846 transitions. [2020-10-15 16:34:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 16:34:59,294 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2020-10-15 16:34:59,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:34:59,741 INFO L225 Difference]: With dead ends: 161551 [2020-10-15 16:34:59,741 INFO L226 Difference]: Without dead ends: 161551 [2020-10-15 16:34:59,742 INFO L677 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 [2020-10-15 16:35:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161551 states. [2020-10-15 16:35:13,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161551 to 161551. [2020-10-15 16:35:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161551 states. [2020-10-15 16:35:13,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161551 states to 161551 states and 707846 transitions. [2020-10-15 16:35:13,689 INFO L78 Accepts]: Start accepts. Automaton has 161551 states and 707846 transitions. Word has length 59 [2020-10-15 16:35:13,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:35:13,690 INFO L481 AbstractCegarLoop]: Abstraction has 161551 states and 707846 transitions. [2020-10-15 16:35:13,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 16:35:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 161551 states and 707846 transitions. [2020-10-15 16:35:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-15 16:35:13,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:35:13,700 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:35:13,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-10-15 16:35:13,901 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:35:13,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:35:13,901 INFO L82 PathProgramCache]: Analyzing trace with hash 58988336, now seen corresponding path program 1 times [2020-10-15 16:35:13,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:35:13,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339711906] [2020-10-15 16:35:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:35:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:35:13,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:35:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 16:35:13,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 16:35:13,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 16:35:13,955 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 16:35:13,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-15 16:35:13,955 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:35:13,955 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 16:35:13,956 WARN L371 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 16:35:13,956 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2020-10-15 16:35:13,968 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,968 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,968 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,968 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,969 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,970 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,971 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,971 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,971 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,971 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,971 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,972 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,973 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,974 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,975 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,976 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,977 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,977 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,977 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,977 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,978 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,978 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,978 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,978 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,979 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,980 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,980 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,980 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,981 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,981 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,981 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,981 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,982 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,983 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,983 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,983 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,984 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,985 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,985 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,985 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,986 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,986 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,986 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,986 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,988 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,988 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,988 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,988 WARN L313 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,989 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,989 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,990 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,990 WARN L313 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,991 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,991 WARN L313 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,991 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,991 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,993 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,993 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,993 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,993 WARN L313 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:35:13,999 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-15 16:35:14,000 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:35:14,000 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:35:14,000 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:35:14,000 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:35:14,000 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:35:14,000 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:35:14,000 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:35:14,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:35:14,002 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:35:14,002 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 138 transitions, 446 flow [2020-10-15 16:35:14,002 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 138 transitions, 446 flow [2020-10-15 16:35:14,002 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 142 places, 138 transitions, 446 flow [2020-10-15 16:35:19,699 INFO L129 PetriNetUnfolder]: 8216/39137 cut-off events. [2020-10-15 16:35:19,700 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2020-10-15 16:35:20,040 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. [2020-10-15 16:35:23,944 INFO L117 LiptonReduction]: Number of co-enabled transitions 6360 [2020-10-15 16:35:24,646 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:24,671 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,690 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:24,691 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,691 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:35:24,698 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,732 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:24,735 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,751 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:24,752 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:24,752 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:35:26,795 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,818 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:26,821 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:26,836 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,837 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:35:26,846 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:26,866 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:26,884 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:26,884 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2020-10-15 16:35:29,506 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,535 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:29,538 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,563 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:29,563 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,564 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:29,571 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:29,604 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,629 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:29,630 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:29,630 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:31,785 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:31,814 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:31,836 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,837 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:31,844 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:31,874 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,897 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:31,898 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:31,898 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:34,266 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:34,299 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:34,323 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,324 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:34,338 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,368 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:34,372 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,395 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:34,395 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:34,396 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:36,502 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,531 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:36,536 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:36,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,563 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:36,571 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,598 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:36,602 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:36,625 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:36,625 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:140 [2020-10-15 16:35:38,878 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:38,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:38,917 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:38,951 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:38,952 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:38,953 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:35:38,962 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:38,999 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:39,002 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:39,038 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:39,039 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:39,039 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:35:41,064 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,104 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:41,113 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:41,145 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,145 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:35:41,154 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,193 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:41,196 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:35:41,230 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:35:41,230 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:144, output treesize:146 [2020-10-15 16:35:43,502 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-15 16:35:43,816 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 16:35:43,920 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-15 16:35:43,925 INFO L132 LiptonReduction]: Checked pairs total: 14288 [2020-10-15 16:35:43,925 INFO L134 LiptonReduction]: Total number of compositions: 109 [2020-10-15 16:35:43,926 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 46 transitions, 262 flow [2020-10-15 16:39:39,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 483649 states. [2020-10-15 16:39:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 483649 states. [2020-10-15 16:39:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 16:39:39,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:39:39,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 16:39:39,682 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:39:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:39:39,683 INFO L82 PathProgramCache]: Analyzing trace with hash 70132824, now seen corresponding path program 1 times [2020-10-15 16:39:39,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:39:39,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925741038] [2020-10-15 16:39:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:39:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:39:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:39:39,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925741038] [2020-10-15 16:39:39,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:39:39,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:39:39,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491853286] [2020-10-15 16:39:39,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:39:39,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:39:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:39:39,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:39:39,698 INFO L87 Difference]: Start difference. First operand 483649 states. Second operand 3 states. [2020-10-15 16:39:44,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:39:44,719 INFO L93 Difference]: Finished difference Result 483649 states and 2306323 transitions. [2020-10-15 16:39:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:39:44,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-15 16:39:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:40:02,111 INFO L225 Difference]: With dead ends: 483649 [2020-10-15 16:40:02,111 INFO L226 Difference]: Without dead ends: 424598 [2020-10-15 16:40:02,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:40:23,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424598 states. Received shutdown request... [2020-10-15 16:40:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424598 to 424598. [2020-10-15 16:40:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424598 states. [2020-10-15 16:40:40,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-15 16:40:40,246 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 16:40:40,248 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 16:40:40,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:40:40 BasicIcfg [2020-10-15 16:40:40,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 16:40:40,250 INFO L168 Benchmark]: Toolchain (without parser) took 741741.03 ms. Allocated memory was 249.0 MB in the beginning and 7.8 GB in the end (delta: 7.5 GB). Free memory was 204.4 MB in the beginning and 3.8 GB in the end (delta: -3.6 GB). Peak memory consumption was 6.4 GB. Max. memory is 14.2 GB. [2020-10-15 16:40:40,250 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:40:40,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.60 ms. Allocated memory was 249.0 MB in the beginning and 308.3 MB in the end (delta: 59.2 MB). Free memory was 204.4 MB in the beginning and 223.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 50.7 MB. Max. memory is 14.2 GB. [2020-10-15 16:40:40,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.75 ms. Allocated memory is still 308.3 MB. Free memory was 223.2 MB in the beginning and 220.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:40:40,251 INFO L168 Benchmark]: Boogie Preprocessor took 30.10 ms. Allocated memory is still 308.3 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:40:40,251 INFO L168 Benchmark]: RCFGBuilder took 478.93 ms. Allocated memory is still 308.3 MB. Free memory was 220.7 MB in the beginning and 193.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 16:40:40,251 INFO L168 Benchmark]: TraceAbstraction took 740258.81 ms. Allocated memory was 308.3 MB in the beginning and 7.8 GB in the end (delta: 7.5 GB). Free memory was 193.8 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 6.3 GB. Max. memory is 14.2 GB. [2020-10-15 16:40:40,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 911.60 ms. Allocated memory was 249.0 MB in the beginning and 308.3 MB in the end (delta: 59.2 MB). Free memory was 204.4 MB in the beginning and 223.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 50.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 55.75 ms. Allocated memory is still 308.3 MB. Free memory was 223.2 MB in the beginning and 220.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 30.10 ms. Allocated memory is still 308.3 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 478.93 ms. Allocated memory is still 308.3 MB. Free memory was 220.7 MB in the beginning and 193.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 740258.81 ms. Allocated memory was 308.3 MB in the beginning and 7.8 GB in the end (delta: 7.5 GB). Free memory was 193.8 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 6.3 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: 15.4s, 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: 13.8s, 41 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 16.0s, 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: 17.6s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 19.8s, 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: 18.7s, 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: 22.4s, 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: 16.5s, 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: 18.1s, 208 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 22.1s, 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: 20.8s, 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: 17.4s, 298 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 29.9s, 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 ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 10 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 739.8s, OverallIterations: 59, TraceHistogramMax: 10, AutomataDifference: 63.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 485.5s, HoareTripleCheckerStatistics: 1551 SDtfs, 2826 SDslu, 3394 SDs, 0 SdLazy, 1792 SolverSat, 157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1147 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 3.4s 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: 175.0s AutomataMinimizationTime, 50 MinimizatonAttempts, 9018 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2375 NumberOfCodeBlocks, 2375 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1980 ConstructedInterpolants, 0 QuantifiedInterpolants, 327028 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