/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:04:45,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:04:45,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:04:45,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:04:45,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:04:45,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:04:45,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:04:45,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:04:45,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:04:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:04:45,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:04:45,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:04:45,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:04:45,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:04:45,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:04:45,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:04:45,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:04:45,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:04:45,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:04:45,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:04:45,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:04:45,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:04:45,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:04:45,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:04:45,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:04:45,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:04:45,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:04:45,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:04:45,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:04:45,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:04:45,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:04:45,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:04:45,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:04:45,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:04:45,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:04:45,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:04:45,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:04:45,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:04:45,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:04:45,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:04:45,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:04:45,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:04:45,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:04:45,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:04:45,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:04:45,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:04:45,694 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:04:45,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:04:45,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:04:45,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:04:45,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:04:45,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:04:45,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:04:45,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:04:45,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:04:45,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:04:45,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:04:45,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:04:45,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:04:45,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:04:45,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:04:45,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:04:46,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:04:46,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:04:46,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:04:46,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:04:46,039 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:04:46,040 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label39.c [2020-10-12 15:04:46,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a26494f7/6b32a90cc1ef442db8be6a2a9554c59f/FLAG93e948b28 [2020-10-12 15:04:46,800 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:04:46,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label39.c [2020-10-12 15:04:46,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a26494f7/6b32a90cc1ef442db8be6a2a9554c59f/FLAG93e948b28 [2020-10-12 15:04:46,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a26494f7/6b32a90cc1ef442db8be6a2a9554c59f [2020-10-12 15:04:46,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:04:46,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:04:46,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:04:46,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:04:46,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:04:46,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:04:46" (1/1) ... [2020-10-12 15:04:46,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cd098f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:46, skipping insertion in model container [2020-10-12 15:04:46,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:04:46" (1/1) ... [2020-10-12 15:04:46,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:04:47,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:04:48,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:04:48,505 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:04:49,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:04:49,087 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:04:49,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49 WrapperNode [2020-10-12 15:04:49,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:04:49,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:04:49,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:04:49,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:04:49,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... [2020-10-12 15:04:49,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:04:49,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:04:49,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:04:49,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:04:49,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:04:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:04:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:04:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:04:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:04:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:04:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:04:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:04:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:04:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:04:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:04:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:04:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:04:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:04:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:04:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:04:56,071 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:04:56,072 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:04:56,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:04:56 BoogieIcfgContainer [2020-10-12 15:04:56,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:04:56,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:04:56,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:04:56,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:04:56,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:04:46" (1/3) ... [2020-10-12 15:04:56,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3160d219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:04:56, skipping insertion in model container [2020-10-12 15:04:56,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:04:49" (2/3) ... [2020-10-12 15:04:56,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3160d219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:04:56, skipping insertion in model container [2020-10-12 15:04:56,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:04:56" (3/3) ... [2020-10-12 15:04:56,097 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label39.c [2020-10-12 15:04:56,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:04:56,121 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:04:56,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:04:56,170 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:04:56,171 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:04:56,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:04:56,171 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:04:56,171 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:04:56,171 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:04:56,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:04:56,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:04:56,212 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:04:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 15:04:56,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:04:56,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:04:56,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:04:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:04:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1436642090, now seen corresponding path program 1 times [2020-10-12 15:04:56,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:04:56,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452555566] [2020-10-12 15:04:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:04:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:56,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:56,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:56,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 15:04:56,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-12 15:04:56,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:04:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:04:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 15:04:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:04:56,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:04:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:04:56,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:04:56,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:04:56,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:04:56,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:04:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:04:56,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:04:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:04:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:04:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:04:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:04:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:04:56,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452555566] [2020-10-12 15:04:56,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:04:56,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:04:56,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754555997] [2020-10-12 15:04:56,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:04:56,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:04:56,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:04:56,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:04:56,833 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 15:05:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:04,150 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 15:05:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:05:04,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-12 15:05:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:04,186 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 15:05:04,186 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 15:05:04,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:05:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 15:05:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 15:05:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 15:05:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-12 15:05:04,361 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 19 [2020-10-12 15:05:04,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:04,362 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-12 15:05:04,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:05:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-12 15:05:04,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 15:05:04,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:04,367 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:04,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:05:04,368 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:04,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:04,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1826688270, now seen corresponding path program 1 times [2020-10-12 15:05:04,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:04,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891616664] [2020-10-12 15:05:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:04,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:05,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:05,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 15:05:05,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:05:05,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-10-12 15:05:05,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:05,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:05:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:05,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:05,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:05,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:05:05,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:05,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:05,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:05,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:05,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:05,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:05:05,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 15:05:05,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:05:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:05,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891616664] [2020-10-12 15:05:05,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:05,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:05:05,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860708925] [2020-10-12 15:05:05,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:05:05,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:05,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:05:05,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:05:05,631 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 8 states. [2020-10-12 15:05:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:18,192 INFO L93 Difference]: Finished difference Result 5730 states and 9449 transitions. [2020-10-12 15:05:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:05:18,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-12 15:05:18,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:18,216 INFO L225 Difference]: With dead ends: 5730 [2020-10-12 15:05:18,217 INFO L226 Difference]: Without dead ends: 4311 [2020-10-12 15:05:18,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:05:18,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2020-10-12 15:05:18,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4305. [2020-10-12 15:05:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4305 states. [2020-10-12 15:05:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 5987 transitions. [2020-10-12 15:05:18,352 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 5987 transitions. Word has length 89 [2020-10-12 15:05:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:18,353 INFO L479 AbstractCegarLoop]: Abstraction has 4305 states and 5987 transitions. [2020-10-12 15:05:18,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:05:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 5987 transitions. [2020-10-12 15:05:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 15:05:18,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:18,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:18,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:05:18,357 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:18,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:18,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1995359571, now seen corresponding path program 1 times [2020-10-12 15:05:18,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:18,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566823112] [2020-10-12 15:05:18,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:18,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:18,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 15:05:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:05:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-12 15:05:18,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 15:05:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:18,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:18,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:18,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:18,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:18,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:18,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:05:18,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:19,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:19,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:05:19,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 15:05:19,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 15:05:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:19,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566823112] [2020-10-12 15:05:19,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:19,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:05:19,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867976788] [2020-10-12 15:05:19,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:19,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:19,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:19,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:19,087 INFO L87 Difference]: Start difference. First operand 4305 states and 5987 transitions. Second operand 7 states. [2020-10-12 15:05:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:30,325 INFO L93 Difference]: Finished difference Result 10242 states and 14480 transitions. [2020-10-12 15:05:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:05:30,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 15:05:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:30,359 INFO L225 Difference]: With dead ends: 10242 [2020-10-12 15:05:30,359 INFO L226 Difference]: Without dead ends: 5943 [2020-10-12 15:05:30,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:05:30,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2020-10-12 15:05:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5848. [2020-10-12 15:05:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5848 states. [2020-10-12 15:05:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 7809 transitions. [2020-10-12 15:05:30,613 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 7809 transitions. Word has length 90 [2020-10-12 15:05:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:30,615 INFO L479 AbstractCegarLoop]: Abstraction has 5848 states and 7809 transitions. [2020-10-12 15:05:30,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 7809 transitions. [2020-10-12 15:05:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 15:05:30,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:30,627 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:30,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:05:30,628 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:30,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1873295385, now seen corresponding path program 1 times [2020-10-12 15:05:30,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:30,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558381096] [2020-10-12 15:05:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:30,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:30,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 15:05:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:05:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1259 [2020-10-12 15:05:31,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:05:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:31,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:32,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:32,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:32,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:32,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:32,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:05:32,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:32,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:32,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:32,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:05:32,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:05:32,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:32,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:32,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:32,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:05:32,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:32,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-12 15:05:32,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:32,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:32,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:05:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:05:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:32,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558381096] [2020-10-12 15:05:32,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:05:32,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:05:32,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755979806] [2020-10-12 15:05:32,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:05:32,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:32,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:05:32,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:05:32,392 INFO L87 Difference]: Start difference. First operand 5848 states and 7809 transitions. Second operand 7 states. [2020-10-12 15:05:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:05:48,155 INFO L93 Difference]: Finished difference Result 16198 states and 22039 transitions. [2020-10-12 15:05:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:05:48,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-12 15:05:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:05:48,199 INFO L225 Difference]: With dead ends: 16198 [2020-10-12 15:05:48,199 INFO L226 Difference]: Without dead ends: 10356 [2020-10-12 15:05:48,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:05:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10356 states. [2020-10-12 15:05:48,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10356 to 10276. [2020-10-12 15:05:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10276 states. [2020-10-12 15:05:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10276 states to 10276 states and 12864 transitions. [2020-10-12 15:05:48,488 INFO L78 Accepts]: Start accepts. Automaton has 10276 states and 12864 transitions. Word has length 116 [2020-10-12 15:05:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:05:48,489 INFO L479 AbstractCegarLoop]: Abstraction has 10276 states and 12864 transitions. [2020-10-12 15:05:48,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:05:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 10276 states and 12864 transitions. [2020-10-12 15:05:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-12 15:05:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:05:48,500 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:05:48,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:05:48,501 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:05:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:05:48,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1079622198, now seen corresponding path program 1 times [2020-10-12 15:05:48,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:05:48,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842001292] [2020-10-12 15:05:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:05:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:48,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:48,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:48,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-12 15:05:48,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-12 15:05:48,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:05:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:05:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:05:48,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:05:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:48,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:48,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:05:48,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:48,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:05:48,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:05:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:48,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:05:48,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:05:48,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:05:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:05:49,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:05:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:05:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:05:49,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:05:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 15:05:49,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:05:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:05:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:05:49,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:05:49,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:05:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:05:49,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842001292] [2020-10-12 15:05:49,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:05:49,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:05:49,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672740570] [2020-10-12 15:05:49,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:05:49,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:05:49,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:05:49,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:05:49,279 INFO L87 Difference]: Start difference. First operand 10276 states and 12864 transitions. Second operand 6 states. [2020-10-12 15:06:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:06,283 INFO L93 Difference]: Finished difference Result 27749 states and 36399 transitions. [2020-10-12 15:06:06,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:06:06,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2020-10-12 15:06:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:06,341 INFO L225 Difference]: With dead ends: 27749 [2020-10-12 15:06:06,342 INFO L226 Difference]: Without dead ends: 15955 [2020-10-12 15:06:06,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:06:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15955 states. [2020-10-12 15:06:06,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15955 to 14523. [2020-10-12 15:06:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14523 states. [2020-10-12 15:06:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14523 states to 14523 states and 16811 transitions. [2020-10-12 15:06:06,761 INFO L78 Accepts]: Start accepts. Automaton has 14523 states and 16811 transitions. Word has length 205 [2020-10-12 15:06:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:06,762 INFO L479 AbstractCegarLoop]: Abstraction has 14523 states and 16811 transitions. [2020-10-12 15:06:06,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:06:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 14523 states and 16811 transitions. [2020-10-12 15:06:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2020-10-12 15:06:06,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:06,777 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:06:06,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:06:06,778 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:06,778 INFO L82 PathProgramCache]: Analyzing trace with hash 952239556, now seen corresponding path program 1 times [2020-10-12 15:06:06,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:06,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720541097] [2020-10-12 15:06:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:07,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:07,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:11,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:11,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 591 [2020-10-12 15:06:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:06:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 15:06:11,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:06:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:06:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:06:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:12,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:12,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:12,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:12,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:06:12,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:06:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:12,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:06:12,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-12 15:06:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:06:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:06:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:12,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:12,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:12,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:06:12,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:12,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 15:06:12,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:12,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:06:12,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:06:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:13,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:06:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:13,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:13,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:13,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:06:13,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-12 15:06:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:13,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-10-12 15:06:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:13,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:13,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:13,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 15:06:13,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 15:06:13,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-12 15:06:13,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 36 proven. 239 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-12 15:06:14,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720541097] [2020-10-12 15:06:14,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:14,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 15:06:14,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169908459] [2020-10-12 15:06:14,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:06:14,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:14,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:06:14,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:06:14,134 INFO L87 Difference]: Start difference. First operand 14523 states and 16811 transitions. Second operand 9 states. [2020-10-12 15:06:24,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:24,939 INFO L93 Difference]: Finished difference Result 42172 states and 50312 transitions. [2020-10-12 15:06:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:06:24,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 575 [2020-10-12 15:06:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:25,035 INFO L225 Difference]: With dead ends: 42172 [2020-10-12 15:06:25,035 INFO L226 Difference]: Without dead ends: 27655 [2020-10-12 15:06:25,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:06:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2020-10-12 15:06:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 27611. [2020-10-12 15:06:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27611 states. [2020-10-12 15:06:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27611 states to 27611 states and 32336 transitions. [2020-10-12 15:06:25,604 INFO L78 Accepts]: Start accepts. Automaton has 27611 states and 32336 transitions. Word has length 575 [2020-10-12 15:06:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:25,605 INFO L479 AbstractCegarLoop]: Abstraction has 27611 states and 32336 transitions. [2020-10-12 15:06:25,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:06:25,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27611 states and 32336 transitions. [2020-10-12 15:06:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1103 [2020-10-12 15:06:25,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:25,663 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:06:25,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:06:25,663 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:25,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:25,664 INFO L82 PathProgramCache]: Analyzing trace with hash -750372243, now seen corresponding path program 1 times [2020-10-12 15:06:25,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:25,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102442420] [2020-10-12 15:06:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:26,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:26,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:30,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:31,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:31,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1124 [2020-10-12 15:06:31,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:06:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-12 15:06:31,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:06:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:06:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 15:06:31,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:31,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:31,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:31,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:31,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:31,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:06:31,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:31,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:31,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:31,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:31,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:31,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:31,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 15:06:31,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:31,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:31,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:31,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:31,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:31,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:31,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:31,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 15:06:31,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:31,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:31,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:31,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:31,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:06:31,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:31,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:06:32,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:32,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:32,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:06:32,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:32,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 15:06:32,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:32,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:32,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:32,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:32,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:32,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:32,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:06:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:06:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:32,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:06:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:32,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:32,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:32,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:06:32,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:32,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:06:32,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:06:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:06:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:32,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:32,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:32,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 15:06:32,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:06:32,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-12 15:06:32,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:32,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:32,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:06:32,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:06:32,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 409 proven. 18 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-12 15:06:33,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102442420] [2020-10-12 15:06:33,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:33,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:06:33,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703855449] [2020-10-12 15:06:33,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:06:33,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:33,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:06:33,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:06:33,964 INFO L87 Difference]: Start difference. First operand 27611 states and 32336 transitions. Second operand 7 states. [2020-10-12 15:06:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:40,196 INFO L93 Difference]: Finished difference Result 55263 states and 64867 transitions. [2020-10-12 15:06:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:06:40,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1102 [2020-10-12 15:06:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:40,282 INFO L225 Difference]: With dead ends: 55263 [2020-10-12 15:06:40,283 INFO L226 Difference]: Without dead ends: 27658 [2020-10-12 15:06:40,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:06:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27658 states. [2020-10-12 15:06:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27658 to 27624. [2020-10-12 15:06:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27624 states. [2020-10-12 15:06:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27624 states to 27624 states and 31607 transitions. [2020-10-12 15:06:40,776 INFO L78 Accepts]: Start accepts. Automaton has 27624 states and 31607 transitions. Word has length 1102 [2020-10-12 15:06:40,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:40,779 INFO L479 AbstractCegarLoop]: Abstraction has 27624 states and 31607 transitions. [2020-10-12 15:06:40,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:06:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 27624 states and 31607 transitions. [2020-10-12 15:06:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2020-10-12 15:06:40,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:40,834 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:06:40,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:06:40,834 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:40,835 INFO L82 PathProgramCache]: Analyzing trace with hash 861734121, now seen corresponding path program 1 times [2020-10-12 15:06:40,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:40,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42501439] [2020-10-12 15:06:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:41,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:42,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:46,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:46,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:46,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1144 [2020-10-12 15:06:46,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:06:46,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5341 [2020-10-12 15:06:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:06:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1125 [2020-10-12 15:06:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:06:46,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:06:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:46,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:46,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:46,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:06:46,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:06:46,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:46,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:06:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:46,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:46,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:46,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:06:46,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:46,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 15:06:46,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:46,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:46,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:46,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:46,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:46,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:06:47,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:06:47,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:06:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:06:47,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:06:47,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:06:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:06:47,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:06:47,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:06:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:06:47,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:06:47,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:06:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:06:47,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:06:47,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:06:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:06:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:06:47,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:06:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:06:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:06:47,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2020-10-12 15:06:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:47,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:47,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:06:47,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:06:47,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:06:47,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 15:06:47,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:06:47,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:06:47,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:06:47,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:06:47,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:06:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 67 proven. 5 refuted. 0 times theorem prover too weak. 1094 trivial. 0 not checked. [2020-10-12 15:06:48,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42501439] [2020-10-12 15:06:48,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:06:48,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:06:48,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152342426] [2020-10-12 15:06:48,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:06:48,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:06:48,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:06:48,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:06:48,414 INFO L87 Difference]: Start difference. First operand 27624 states and 31607 transitions. Second operand 5 states. [2020-10-12 15:06:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:06:55,442 INFO L93 Difference]: Finished difference Result 65207 states and 75886 transitions. [2020-10-12 15:06:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:06:55,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1120 [2020-10-12 15:06:55,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:06:55,566 INFO L225 Difference]: With dead ends: 65207 [2020-10-12 15:06:55,566 INFO L226 Difference]: Without dead ends: 37589 [2020-10-12 15:06:55,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:06:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37589 states. [2020-10-12 15:06:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37589 to 36179. [2020-10-12 15:06:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36179 states. [2020-10-12 15:06:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36179 states to 36179 states and 41816 transitions. [2020-10-12 15:06:56,447 INFO L78 Accepts]: Start accepts. Automaton has 36179 states and 41816 transitions. Word has length 1120 [2020-10-12 15:06:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:06:56,448 INFO L479 AbstractCegarLoop]: Abstraction has 36179 states and 41816 transitions. [2020-10-12 15:06:56,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:06:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 36179 states and 41816 transitions. [2020-10-12 15:06:56,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2020-10-12 15:06:56,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:06:56,486 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:06:56,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:06:56,487 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:06:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:06:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1906315685, now seen corresponding path program 1 times [2020-10-12 15:06:56,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:06:56,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856133704] [2020-10-12 15:06:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:06:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:06:56,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:06:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1246 [2020-10-12 15:07:00,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:07:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3535 [2020-10-12 15:07:00,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:07:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 15:07:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:00,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:07:00,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:00,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:00,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:01,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:01,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:01,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:07:01,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:07:01,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:01,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:01,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:07:01,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:07:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:01,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:01,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:01,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 15:07:01,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 15:07:01,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:07:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 15:07:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1076 [2020-10-12 15:07:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:01,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:01,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:01,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:01,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:07:01,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:07:01,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:01,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1451 backedges. 409 proven. 111 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2020-10-12 15:07:02,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856133704] [2020-10-12 15:07:02,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:02,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:07:02,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565104933] [2020-10-12 15:07:02,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:07:02,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:07:02,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:07:02,364 INFO L87 Difference]: Start difference. First operand 36179 states and 41816 transitions. Second operand 7 states. [2020-10-12 15:07:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:10,794 INFO L93 Difference]: Finished difference Result 83798 states and 97150 transitions. [2020-10-12 15:07:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:07:10,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1222 [2020-10-12 15:07:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:10,924 INFO L225 Difference]: With dead ends: 83798 [2020-10-12 15:07:10,925 INFO L226 Difference]: Without dead ends: 47625 [2020-10-12 15:07:10,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:07:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47625 states. [2020-10-12 15:07:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47625 to 46891. [2020-10-12 15:07:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46891 states. [2020-10-12 15:07:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46891 states to 46891 states and 53316 transitions. [2020-10-12 15:07:11,682 INFO L78 Accepts]: Start accepts. Automaton has 46891 states and 53316 transitions. Word has length 1222 [2020-10-12 15:07:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:11,683 INFO L479 AbstractCegarLoop]: Abstraction has 46891 states and 53316 transitions. [2020-10-12 15:07:11,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:07:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 46891 states and 53316 transitions. [2020-10-12 15:07:11,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2020-10-12 15:07:11,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:11,713 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:07:11,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:07:11,714 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:11,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:11,714 INFO L82 PathProgramCache]: Analyzing trace with hash 707505832, now seen corresponding path program 1 times [2020-10-12 15:07:11,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:11,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907132758] [2020-10-12 15:07:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:12,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:12,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:15,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1271 [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4065 [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:15,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1017 [2020-10-12 15:07:15,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 15:07:15,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:16,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:07:16,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:16,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:07:16,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:16,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:16,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:07:16,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:16,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:07:16,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:16,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:16,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:07:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:17,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:17,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 15:07:17,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 15:07:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:17,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:17,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:17,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 15:07:17,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:07:17,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:07:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 15:07:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:17,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1099 [2020-10-12 15:07:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:17,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1652 backedges. 444 proven. 95 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2020-10-12 15:07:17,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907132758] [2020-10-12 15:07:17,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:17,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:07:17,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432501398] [2020-10-12 15:07:17,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:07:17,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:07:17,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:07:17,789 INFO L87 Difference]: Start difference. First operand 46891 states and 53316 transitions. Second operand 7 states. [2020-10-12 15:07:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:26,857 INFO L93 Difference]: Finished difference Result 101578 states and 115965 transitions. [2020-10-12 15:07:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:07:26,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1245 [2020-10-12 15:07:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:26,973 INFO L225 Difference]: With dead ends: 101578 [2020-10-12 15:07:26,973 INFO L226 Difference]: Without dead ends: 54693 [2020-10-12 15:07:27,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:07:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54693 states. [2020-10-12 15:07:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54693 to 53277. [2020-10-12 15:07:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53277 states. [2020-10-12 15:07:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53277 states to 53277 states and 60757 transitions. [2020-10-12 15:07:27,913 INFO L78 Accepts]: Start accepts. Automaton has 53277 states and 60757 transitions. Word has length 1245 [2020-10-12 15:07:27,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:27,915 INFO L479 AbstractCegarLoop]: Abstraction has 53277 states and 60757 transitions. [2020-10-12 15:07:27,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:07:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 53277 states and 60757 transitions. [2020-10-12 15:07:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1399 [2020-10-12 15:07:27,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:27,985 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:07:27,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:07:27,986 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:27,987 INFO L82 PathProgramCache]: Analyzing trace with hash 755095245, now seen corresponding path program 1 times [2020-10-12 15:07:27,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:27,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861550416] [2020-10-12 15:07:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:28,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:28,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:28,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1424 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 15:07:33,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:33,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:33,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:33,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:34,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:07:34,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:07:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:07:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 15:07:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-12 15:07:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 15:07:34,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:34,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 15:07:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 403 proven. 212 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2020-10-12 15:07:36,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861550416] [2020-10-12 15:07:36,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:07:36,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:07:36,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594390610] [2020-10-12 15:07:36,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:07:36,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:07:36,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:07:36,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:07:36,353 INFO L87 Difference]: Start difference. First operand 53277 states and 60757 transitions. Second operand 7 states. [2020-10-12 15:07:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:07:50,263 INFO L93 Difference]: Finished difference Result 115732 states and 132098 transitions. [2020-10-12 15:07:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:07:50,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1398 [2020-10-12 15:07:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:07:50,439 INFO L225 Difference]: With dead ends: 115732 [2020-10-12 15:07:50,440 INFO L226 Difference]: Without dead ends: 62461 [2020-10-12 15:07:50,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:07:50,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62461 states. [2020-10-12 15:07:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62461 to 62427. [2020-10-12 15:07:51,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62427 states. [2020-10-12 15:07:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62427 states to 62427 states and 70239 transitions. [2020-10-12 15:07:51,394 INFO L78 Accepts]: Start accepts. Automaton has 62427 states and 70239 transitions. Word has length 1398 [2020-10-12 15:07:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:07:51,395 INFO L479 AbstractCegarLoop]: Abstraction has 62427 states and 70239 transitions. [2020-10-12 15:07:51,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:07:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 62427 states and 70239 transitions. [2020-10-12 15:07:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1420 [2020-10-12 15:07:51,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:07:51,452 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:07:51,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:07:51,453 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:07:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:07:51,454 INFO L82 PathProgramCache]: Analyzing trace with hash 968649684, now seen corresponding path program 1 times [2020-10-12 15:07:51,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:07:51,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908864820] [2020-10-12 15:07:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:07:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:52,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:53,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:56,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1445 [2020-10-12 15:07:56,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5166 [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 965 [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 15:07:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:57,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:07:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:57,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:07:57,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:07:57,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:07:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:57,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:57,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:07:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:57,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:57,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:57,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:07:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:57,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:57,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:07:57,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:07:57,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:57,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:57,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:07:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:58,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:58,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:58,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:07:58,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 15:07:58,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:58,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:07:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:58,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:58,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:58,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:07:58,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:58,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:07:58,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:58,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:58,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:58,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:07:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:59,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:59,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:07:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:59,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:07:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:07:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:07:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:07:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:59,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-12 15:07:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:07:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 15:07:59,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:07:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:07:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 15:07:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-12 15:07:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:59,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:59,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:59,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 15:07:59,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 15:07:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-12 15:07:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:07:59,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1273 [2020-10-12 15:07:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:07:59,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:07:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:07:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:07:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:07:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 15:07:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:07:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:07:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:07:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:07:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2192 backedges. 421 proven. 212 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2020-10-12 15:08:00,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908864820] [2020-10-12 15:08:00,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:00,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:08:00,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991485513] [2020-10-12 15:08:00,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:00,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:00,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:00,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:00,628 INFO L87 Difference]: Start difference. First operand 62427 states and 70239 transitions. Second operand 7 states. [2020-10-12 15:08:10,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:10,706 INFO L93 Difference]: Finished difference Result 127003 states and 142882 transitions. [2020-10-12 15:08:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:08:10,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1419 [2020-10-12 15:08:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:10,845 INFO L225 Difference]: With dead ends: 127003 [2020-10-12 15:08:10,845 INFO L226 Difference]: Without dead ends: 64582 [2020-10-12 15:08:10,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:08:10,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64582 states. [2020-10-12 15:08:11,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64582 to 64563. [2020-10-12 15:08:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64563 states. [2020-10-12 15:08:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64563 states to 64563 states and 72474 transitions. [2020-10-12 15:08:11,852 INFO L78 Accepts]: Start accepts. Automaton has 64563 states and 72474 transitions. Word has length 1419 [2020-10-12 15:08:11,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:11,853 INFO L479 AbstractCegarLoop]: Abstraction has 64563 states and 72474 transitions. [2020-10-12 15:08:11,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:08:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 64563 states and 72474 transitions. [2020-10-12 15:08:11,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2020-10-12 15:08:11,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:11,893 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:08:11,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:08:11,894 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:11,895 INFO L82 PathProgramCache]: Analyzing trace with hash 987758457, now seen corresponding path program 1 times [2020-10-12 15:08:11,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:11,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473729244] [2020-10-12 15:08:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:12,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:12,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1450 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-12 15:08:17,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:08:17,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:08:17,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:08:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:08:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:08:17,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:08:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:08:17,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:08:17,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:08:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:17,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:17,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:08:17,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 15:08:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:08:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:08:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:18,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-12 15:08:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1166 [2020-10-12 15:08:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:18,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:18,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:18,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:18,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1278 [2020-10-12 15:08:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:18,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:18,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:08:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 655 proven. 243 refuted. 0 times theorem prover too weak. 1252 trivial. 0 not checked. [2020-10-12 15:08:19,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473729244] [2020-10-12 15:08:19,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:08:19,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:08:19,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586779773] [2020-10-12 15:08:19,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:19,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:19,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:19,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:19,333 INFO L87 Difference]: Start difference. First operand 64563 states and 72474 transitions. Second operand 7 states.