/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:53:18,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:53:18,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:53:18,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:53:18,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:53:18,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:53:18,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:53:18,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:53:18,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:53:18,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:53:18,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:53:18,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:53:18,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:53:18,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:53:18,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:53:18,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:53:18,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:53:18,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:53:18,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:53:18,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:53:18,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:53:18,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:53:18,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:53:18,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:53:18,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:53:18,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:53:18,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:53:18,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:53:18,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:53:18,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:53:18,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:53:18,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:53:18,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:53:18,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:53:18,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:53:18,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:53:18,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:53:18,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:53:18,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:53:18,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:53:18,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:53:18,583 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 [2020-10-14 22:53:18,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:53:18,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:53:18,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:53:18,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:53:18,623 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:53:18,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:53:18,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:53:18,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:53:18,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:53:18,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:53:18,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:53:18,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:53:18,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:53:18,626 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:53:18,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:53:18,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:53:18,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:53:18,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:53:18,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:53:18,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:53:18,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:53:18,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:53:18,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:53:18,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:53:18,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:53:18,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:53:18,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:53:18,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:53:18,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:53:18,629 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:53:18,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:53:18,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:53:18,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:53:18,923 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:53:18,923 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:53:18,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label51.c [2020-10-14 22:53:18,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c4891ac0/9f6ea2bd35804265942c69c8c68106cd/FLAG81ab49cae [2020-10-14 22:53:19,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:53:19,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label51.c [2020-10-14 22:53:19,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c4891ac0/9f6ea2bd35804265942c69c8c68106cd/FLAG81ab49cae [2020-10-14 22:53:19,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c4891ac0/9f6ea2bd35804265942c69c8c68106cd [2020-10-14 22:53:19,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:53:19,880 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:53:19,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:53:19,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:53:19,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:53:19,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:53:19" (1/1) ... [2020-10-14 22:53:19,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c5926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:19, skipping insertion in model container [2020-10-14 22:53:19,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:53:19" (1/1) ... [2020-10-14 22:53:19,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:53:20,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:53:21,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:53:21,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:53:21,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:53:21,699 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:53:21,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21 WrapperNode [2020-10-14 22:53:21,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:53:21,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:53:21,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:53:21,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:53:21,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (1/1) ... [2020-10-14 22:53:21,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:53:21,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:53:21,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:53:21,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:53:21,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (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 [2020-10-14 22:53:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:53:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:53:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:53:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:53:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:53:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:53:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:53:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:53:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:53:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:53:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:53:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:53:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:53:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:53:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:53:27,881 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:53:27,881 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:53:27,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:53:27 BoogieIcfgContainer [2020-10-14 22:53:27,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:53:27,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:53:27,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:53:27,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:53:27,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:53:19" (1/3) ... [2020-10-14 22:53:27,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5874cee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:53:27, skipping insertion in model container [2020-10-14 22:53:27,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:53:21" (2/3) ... [2020-10-14 22:53:27,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5874cee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:53:27, skipping insertion in model container [2020-10-14 22:53:27,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:53:27" (3/3) ... [2020-10-14 22:53:27,910 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label51.c [2020-10-14 22:53:27,921 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:53:27,932 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:53:27,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:53:27,974 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:53:27,974 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:53:27,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:53:27,975 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:53:27,975 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:53:27,975 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:53:27,975 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:53:27,975 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:53:28,020 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:53:28,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 22:53:28,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:28,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:53:28,038 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:28,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1085163511, now seen corresponding path program 1 times [2020-10-14 22:53:28,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:28,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839147157] [2020-10-14 22:53:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:28,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:28,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:28,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:53:28,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:28,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-14 22:53:28,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:28,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:28,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:53:28,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:53:28,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 22:53:28,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:53:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:28,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:28,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:28,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:53:28,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:28,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:53:28,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:53:28,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839147157] [2020-10-14 22:53:28,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:53:28,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:53:28,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992036863] [2020-10-14 22:53:28,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:53:28,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:28,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:53:28,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:53:28,890 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 22:53:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:35,469 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:53:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:53:35,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-14 22:53:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:35,498 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:53:35,499 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:53:35,509 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 [2020-10-14 22:53:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:53:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:53:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:53:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-14 22:53:35,643 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 66 [2020-10-14 22:53:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:35,644 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-14 22:53:35,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:53:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-14 22:53:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-14 22:53:35,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:35,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:53:35,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:53:35,651 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:35,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash -549348988, now seen corresponding path program 1 times [2020-10-14 22:53:35,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:35,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922452458] [2020-10-14 22:53:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:35,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:36,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 22:53:37,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:53:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1818 [2020-10-14 22:53:37,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:37,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 22:53:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:53:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:53:37,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:37,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:53:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:53:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:53:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:37,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:37,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:37,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:53:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:37,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:53:37,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:37,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:53:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:53:37,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922452458] [2020-10-14 22:53:37,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:53:37,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:53:37,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749247954] [2020-10-14 22:53:37,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:53:37,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:37,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:53:37,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:53:37,767 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 6 states. [2020-10-14 22:53:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:48,220 INFO L93 Difference]: Finished difference Result 4271 states and 7385 transitions. [2020-10-14 22:53:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:53:48,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-10-14 22:53:48,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:48,236 INFO L225 Difference]: With dead ends: 4271 [2020-10-14 22:53:48,237 INFO L226 Difference]: Without dead ends: 2852 [2020-10-14 22:53:48,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:53:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-14 22:53:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2848. [2020-10-14 22:53:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 22:53:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4431 transitions. [2020-10-14 22:53:48,317 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4431 transitions. Word has length 136 [2020-10-14 22:53:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:48,318 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 4431 transitions. [2020-10-14 22:53:48,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:53:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4431 transitions. [2020-10-14 22:53:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 22:53:48,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:48,322 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:53:48,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:53:48,323 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:48,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:48,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1242748544, now seen corresponding path program 1 times [2020-10-14 22:53:48,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:48,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683573818] [2020-10-14 22:53:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:48,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:48,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:49,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:49,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:53:49,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:53:49,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-10-14 22:53:49,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:49,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:53:49,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:53:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 22:53:49,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:49,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:53:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:49,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:49,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:53:49,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:53:49,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:49,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:53:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:53:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:53:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:49,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:53:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:49,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:49,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:53:49,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:53:49,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:53:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 22:53:49,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:53:49,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:53:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:53:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:53:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:53:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:53:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:53:49,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683573818] [2020-10-14 22:53:49,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:53:49,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:53:49,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761058648] [2020-10-14 22:53:49,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:53:49,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:53:49,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:53:49,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:53:49,744 INFO L87 Difference]: Start difference. First operand 2848 states and 4431 transitions. Second operand 7 states. [2020-10-14 22:53:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:53:57,916 INFO L93 Difference]: Finished difference Result 8634 states and 13564 transitions. [2020-10-14 22:53:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:53:57,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-10-14 22:53:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:53:57,944 INFO L225 Difference]: With dead ends: 8634 [2020-10-14 22:53:57,944 INFO L226 Difference]: Without dead ends: 5070 [2020-10-14 22:53:57,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:53:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2020-10-14 22:53:58,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 4348. [2020-10-14 22:53:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4348 states. [2020-10-14 22:53:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4348 states to 4348 states and 5269 transitions. [2020-10-14 22:53:58,105 INFO L78 Accepts]: Start accepts. Automaton has 4348 states and 5269 transitions. Word has length 154 [2020-10-14 22:53:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:53:58,106 INFO L479 AbstractCegarLoop]: Abstraction has 4348 states and 5269 transitions. [2020-10-14 22:53:58,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:53:58,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4348 states and 5269 transitions. [2020-10-14 22:53:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-14 22:53:58,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:53:58,116 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:53:58,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:53:58,117 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:53:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:53:58,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2080008136, now seen corresponding path program 1 times [2020-10-14 22:53:58,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:53:58,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355873982] [2020-10-14 22:53:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:53:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:53:58,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:58,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:53:58,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:00,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:02,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 22:54:02,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4165 [2020-10-14 22:54:02,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:02,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:02,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:54:02,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:54:02,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:02,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:02,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:02,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:02,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:02,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:54:02,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:02,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:02,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:02,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:02,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:02,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:54:02,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:02,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:02,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:54:02,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:02,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:54:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:02,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:02,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:02,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:02,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:02,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 22:54:02,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:02,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:02,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:54:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:54:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:54:02,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355873982] [2020-10-14 22:54:02,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:02,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:02,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274594518] [2020-10-14 22:54:02,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:02,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:02,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:02,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:02,735 INFO L87 Difference]: Start difference. First operand 4348 states and 5269 transitions. Second operand 7 states. [2020-10-14 22:54:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:09,327 INFO L93 Difference]: Finished difference Result 9551 states and 11577 transitions. [2020-10-14 22:54:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:54:09,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-14 22:54:09,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:09,348 INFO L225 Difference]: With dead ends: 9551 [2020-10-14 22:54:09,349 INFO L226 Difference]: Without dead ends: 4481 [2020-10-14 22:54:09,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:54:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2020-10-14 22:54:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4392. [2020-10-14 22:54:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4392 states. [2020-10-14 22:54:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 5156 transitions. [2020-10-14 22:54:09,474 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 5156 transitions. Word has length 225 [2020-10-14 22:54:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:09,475 INFO L479 AbstractCegarLoop]: Abstraction has 4392 states and 5156 transitions. [2020-10-14 22:54:09,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 5156 transitions. [2020-10-14 22:54:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-14 22:54:09,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:09,479 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:54:09,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:54:09,480 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:09,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:09,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2076241689, now seen corresponding path program 1 times [2020-10-14 22:54:09,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:09,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286883958] [2020-10-14 22:54:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:09,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:09,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:12,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-14 22:54:12,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2802 [2020-10-14 22:54:12,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:12,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:54:12,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-14 22:54:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:12,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:12,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:12,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:12,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:12,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:12,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:12,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:12,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:12,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:54:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:12,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:54:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:54:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:12,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:12,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:12,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 22:54:12,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:12,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 22:54:12,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:12,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:12,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:12,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:12,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:54:12,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:12,775 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:54:12,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286883958] [2020-10-14 22:54:12,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:12,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:12,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848064346] [2020-10-14 22:54:12,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:12,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:12,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:12,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:12,778 INFO L87 Difference]: Start difference. First operand 4392 states and 5156 transitions. Second operand 7 states. [2020-10-14 22:54:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:20,900 INFO L93 Difference]: Finished difference Result 11670 states and 14028 transitions. [2020-10-14 22:54:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:54:20,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2020-10-14 22:54:20,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:20,926 INFO L225 Difference]: With dead ends: 11670 [2020-10-14 22:54:20,926 INFO L226 Difference]: Without dead ends: 7284 [2020-10-14 22:54:20,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:54:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2020-10-14 22:54:21,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 7270. [2020-10-14 22:54:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7270 states. [2020-10-14 22:54:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7270 states to 7270 states and 8308 transitions. [2020-10-14 22:54:21,057 INFO L78 Accepts]: Start accepts. Automaton has 7270 states and 8308 transitions. Word has length 264 [2020-10-14 22:54:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:21,057 INFO L479 AbstractCegarLoop]: Abstraction has 7270 states and 8308 transitions. [2020-10-14 22:54:21,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 7270 states and 8308 transitions. [2020-10-14 22:54:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-14 22:54:21,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:21,065 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:54:21,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:54:21,065 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:21,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:21,065 INFO L82 PathProgramCache]: Analyzing trace with hash 389765407, now seen corresponding path program 1 times [2020-10-14 22:54:21,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:21,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167549610] [2020-10-14 22:54:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:21,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:21,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:21,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:22,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:26,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 22:54:26,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:54:26,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:54:26,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:26,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:26,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:54:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:54:26,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 22:54:26,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:26,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:26,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:26,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:26,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:26,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:26,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:26,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:26,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:26,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:54:26,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:26,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:26,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:54:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:54:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:26,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:54:26,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:54:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:54:26,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:26,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:26,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 22:54:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:26,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-14 22:54:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:26,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:54:26,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:26,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 22:54:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 330 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-14 22:54:26,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167549610] [2020-10-14 22:54:26,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:26,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:54:26,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14901624] [2020-10-14 22:54:26,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:54:26,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:26,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:54:26,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:54:26,804 INFO L87 Difference]: Start difference. First operand 7270 states and 8308 transitions. Second operand 8 states. [2020-10-14 22:54:33,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:33,007 INFO L93 Difference]: Finished difference Result 14585 states and 16683 transitions. [2020-10-14 22:54:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:54:33,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 321 [2020-10-14 22:54:33,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:33,035 INFO L225 Difference]: With dead ends: 14585 [2020-10-14 22:54:33,036 INFO L226 Difference]: Without dead ends: 7321 [2020-10-14 22:54:33,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:54:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2020-10-14 22:54:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 7295. [2020-10-14 22:54:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7295 states. [2020-10-14 22:54:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 8028 transitions. [2020-10-14 22:54:33,173 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 8028 transitions. Word has length 321 [2020-10-14 22:54:33,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:33,174 INFO L479 AbstractCegarLoop]: Abstraction has 7295 states and 8028 transitions. [2020-10-14 22:54:33,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:54:33,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 8028 transitions. [2020-10-14 22:54:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 22:54:33,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:33,181 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:54:33,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:54:33,182 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:33,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1067481771, now seen corresponding path program 1 times [2020-10-14 22:54:33,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:33,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364084763] [2020-10-14 22:54:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:33,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:33,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:38,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:38,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:54:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:54:38,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:38,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:38,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:38,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:38,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:38,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:54:38,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:38,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:38,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:38,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:38,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:38,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:54:38,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:54:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:54:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:38,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:54:38,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:38,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:54:38,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:38,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:54:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:38,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-14 22:54:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:38,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:38,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:38,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:38,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:54:38,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:38,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:54:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:54:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 249 proven. 87 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 22:54:38,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364084763] [2020-10-14 22:54:38,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:38,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:38,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39922433] [2020-10-14 22:54:38,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:38,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:38,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:38,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:38,918 INFO L87 Difference]: Start difference. First operand 7295 states and 8028 transitions. Second operand 7 states. [2020-10-14 22:54:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:54:48,457 INFO L93 Difference]: Finished difference Result 16207 states and 18303 transitions. [2020-10-14 22:54:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:54:48,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-14 22:54:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:54:48,484 INFO L225 Difference]: With dead ends: 16207 [2020-10-14 22:54:48,485 INFO L226 Difference]: Without dead ends: 8918 [2020-10-14 22:54:48,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:54:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2020-10-14 22:54:48,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8786. [2020-10-14 22:54:48,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8786 states. [2020-10-14 22:54:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8786 states to 8786 states and 9669 transitions. [2020-10-14 22:54:48,651 INFO L78 Accepts]: Start accepts. Automaton has 8786 states and 9669 transitions. Word has length 331 [2020-10-14 22:54:48,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:54:48,651 INFO L479 AbstractCegarLoop]: Abstraction has 8786 states and 9669 transitions. [2020-10-14 22:54:48,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:54:48,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8786 states and 9669 transitions. [2020-10-14 22:54:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 22:54:48,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:54:48,660 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:54:48,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:54:48,661 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:54:48,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:54:48,661 INFO L82 PathProgramCache]: Analyzing trace with hash -77610521, now seen corresponding path program 1 times [2020-10-14 22:54:48,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:54:48,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143674107] [2020-10-14 22:54:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:54:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:48,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:48,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 22:54:53,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:54:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:53,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:54:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:54:53,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:54:53,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:53,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:54:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:54:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:54:53,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:54:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:54:53,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 22:54:53,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:53,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 22:54:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:53,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:53,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:53,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:54:53,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:54:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:54:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 22:54:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:54:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:54:54,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:54:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:54:54,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:54:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:54:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 267 proven. 87 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:54:54,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143674107] [2020-10-14 22:54:54,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:54:54,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:54:54,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148108382] [2020-10-14 22:54:54,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:54:54,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:54:54,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:54:54,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:54:54,173 INFO L87 Difference]: Start difference. First operand 8786 states and 9669 transitions. Second operand 7 states. [2020-10-14 22:55:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:05,342 INFO L93 Difference]: Finished difference Result 26404 states and 29942 transitions. [2020-10-14 22:55:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:05,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-14 22:55:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:05,392 INFO L225 Difference]: With dead ends: 26404 [2020-10-14 22:55:05,392 INFO L226 Difference]: Without dead ends: 17624 [2020-10-14 22:55:05,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17624 states. [2020-10-14 22:55:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17624 to 16786. [2020-10-14 22:55:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16786 states. [2020-10-14 22:55:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16786 states to 16786 states and 18439 transitions. [2020-10-14 22:55:05,709 INFO L78 Accepts]: Start accepts. Automaton has 16786 states and 18439 transitions. Word has length 349 [2020-10-14 22:55:05,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:05,709 INFO L479 AbstractCegarLoop]: Abstraction has 16786 states and 18439 transitions. [2020-10-14 22:55:05,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 16786 states and 18439 transitions. [2020-10-14 22:55:05,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-14 22:55:05,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:05,727 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:05,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:55:05,727 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:05,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1274868930, now seen corresponding path program 1 times [2020-10-14 22:55:05,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:05,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883906827] [2020-10-14 22:55:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:05,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:05,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:09,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-14 22:55:10,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:55:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 22:55:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:10,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:10,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:10,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:10,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:10,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:10,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:10,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:55:10,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:55:10,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:10,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 22:55:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:10,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:10,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:55:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:11,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-14 22:55:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:11,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:11,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 22:55:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:11,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 249 proven. 95 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 22:55:11,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883906827] [2020-10-14 22:55:11,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:11,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:11,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320658484] [2020-10-14 22:55:11,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:11,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:11,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:11,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:11,149 INFO L87 Difference]: Start difference. First operand 16786 states and 18439 transitions. Second operand 7 states. [2020-10-14 22:55:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:18,168 INFO L93 Difference]: Finished difference Result 43045 states and 47997 transitions. [2020-10-14 22:55:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:55:18,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-14 22:55:18,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:18,240 INFO L225 Difference]: With dead ends: 43045 [2020-10-14 22:55:18,240 INFO L226 Difference]: Without dead ends: 26269 [2020-10-14 22:55:18,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:55:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26269 states. [2020-10-14 22:55:18,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26269 to 26204. [2020-10-14 22:55:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26204 states. [2020-10-14 22:55:18,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26204 states to 26204 states and 28708 transitions. [2020-10-14 22:55:18,648 INFO L78 Accepts]: Start accepts. Automaton has 26204 states and 28708 transitions. Word has length 368 [2020-10-14 22:55:18,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:18,649 INFO L479 AbstractCegarLoop]: Abstraction has 26204 states and 28708 transitions. [2020-10-14 22:55:18,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:18,649 INFO L276 IsEmpty]: Start isEmpty. Operand 26204 states and 28708 transitions. [2020-10-14 22:55:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 22:55:18,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:18,662 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:18,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:55:18,663 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:18,663 INFO L82 PathProgramCache]: Analyzing trace with hash -666022397, now seen corresponding path program 1 times [2020-10-14 22:55:18,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:18,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992526425] [2020-10-14 22:55:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:18,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:21,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:23,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:23,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 22:55:23,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:55:23,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 22:55:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:23,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:23,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:23,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:23,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:23,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:23,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:23,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:55:23,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:55:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:23,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:23,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:55:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:55:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:23,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:55:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:55:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 22:55:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:23,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:24,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:24,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:55:24,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 319 proven. 6 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 22:55:24,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992526425] [2020-10-14 22:55:24,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:24,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:55:24,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379074116] [2020-10-14 22:55:24,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:55:24,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:24,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:55:24,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:55:24,159 INFO L87 Difference]: Start difference. First operand 26204 states and 28708 transitions. Second operand 9 states. [2020-10-14 22:55:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:37,378 INFO L93 Difference]: Finished difference Result 63583 states and 73704 transitions. [2020-10-14 22:55:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 22:55:37,379 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 369 [2020-10-14 22:55:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:37,499 INFO L225 Difference]: With dead ends: 63583 [2020-10-14 22:55:37,499 INFO L226 Difference]: Without dead ends: 45181 [2020-10-14 22:55:37,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-14 22:55:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45181 states. [2020-10-14 22:55:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45181 to 43315. [2020-10-14 22:55:38,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43315 states. [2020-10-14 22:55:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43315 states to 43315 states and 47937 transitions. [2020-10-14 22:55:38,225 INFO L78 Accepts]: Start accepts. Automaton has 43315 states and 47937 transitions. Word has length 369 [2020-10-14 22:55:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:38,225 INFO L479 AbstractCegarLoop]: Abstraction has 43315 states and 47937 transitions. [2020-10-14 22:55:38,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:55:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 43315 states and 47937 transitions. [2020-10-14 22:55:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-14 22:55:38,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:38,238 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:38,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:55:38,239 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:38,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1331118982, now seen corresponding path program 1 times [2020-10-14 22:55:38,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:38,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435244807] [2020-10-14 22:55:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:38,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:40,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 22:55:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 22:55:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:43,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:43,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:43,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:43,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:43,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:55:43,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:43,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:55:43,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:43,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:43,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:55:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:55:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:55:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:43,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:43,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 22:55:43,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:55:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:43,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 22:55:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:43,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:55:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 284 proven. 87 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:55:43,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435244807] [2020-10-14 22:55:43,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:55:43,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:55:43,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484503517] [2020-10-14 22:55:43,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:55:43,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:55:43,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:55:43,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:55:43,799 INFO L87 Difference]: Start difference. First operand 43315 states and 47937 transitions. Second operand 7 states. [2020-10-14 22:55:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:55:52,110 INFO L93 Difference]: Finished difference Result 100959 states and 113136 transitions. [2020-10-14 22:55:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:55:52,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 382 [2020-10-14 22:55:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:55:52,249 INFO L225 Difference]: With dead ends: 100959 [2020-10-14 22:55:52,250 INFO L226 Difference]: Without dead ends: 57658 [2020-10-14 22:55:52,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:55:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57658 states. [2020-10-14 22:55:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57658 to 56913. [2020-10-14 22:55:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56913 states. [2020-10-14 22:55:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56913 states to 56913 states and 62936 transitions. [2020-10-14 22:55:54,673 INFO L78 Accepts]: Start accepts. Automaton has 56913 states and 62936 transitions. Word has length 382 [2020-10-14 22:55:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:55:54,674 INFO L479 AbstractCegarLoop]: Abstraction has 56913 states and 62936 transitions. [2020-10-14 22:55:54,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:55:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 56913 states and 62936 transitions. [2020-10-14 22:55:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2020-10-14 22:55:54,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:55:54,688 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:55:54,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:55:54,688 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:55:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:55:54,689 INFO L82 PathProgramCache]: Analyzing trace with hash -694508418, now seen corresponding path program 1 times [2020-10-14 22:55:54,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:55:54,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947419007] [2020-10-14 22:55:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:55:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:54,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:54,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:55,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:58,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:59,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 22:55:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 22:55:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:59,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:55:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:59,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:55:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:55:59,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:55:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:59,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:55:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 22:55:59,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 22:55:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:55:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:55:59,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:55:59,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:55:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 22:55:59,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:55:59,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:56:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:00,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:00,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:00,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:56:00,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:56:00,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:00,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 22:56:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 267 proven. 123 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-14 22:56:00,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947419007] [2020-10-14 22:56:00,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:00,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:00,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63382542] [2020-10-14 22:56:00,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:00,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:00,125 INFO L87 Difference]: Start difference. First operand 56913 states and 62936 transitions. Second operand 7 states. [2020-10-14 22:56:07,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:07,532 INFO L93 Difference]: Finished difference Result 108183 states and 119592 transitions. [2020-10-14 22:56:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:07,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 414 [2020-10-14 22:56:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:07,659 INFO L225 Difference]: With dead ends: 108183 [2020-10-14 22:56:07,659 INFO L226 Difference]: Without dead ends: 51284 [2020-10-14 22:56:07,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:07,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51284 states. [2020-10-14 22:56:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51284 to 50503. [2020-10-14 22:56:08,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50503 states. [2020-10-14 22:56:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50503 states to 50503 states and 55091 transitions. [2020-10-14 22:56:08,726 INFO L78 Accepts]: Start accepts. Automaton has 50503 states and 55091 transitions. Word has length 414 [2020-10-14 22:56:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:08,726 INFO L479 AbstractCegarLoop]: Abstraction has 50503 states and 55091 transitions. [2020-10-14 22:56:08,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 50503 states and 55091 transitions. [2020-10-14 22:56:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-14 22:56:08,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:08,746 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:56:08,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:56:08,746 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:08,747 INFO L82 PathProgramCache]: Analyzing trace with hash -107875884, now seen corresponding path program 1 times [2020-10-14 22:56:08,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:08,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717674565] [2020-10-14 22:56:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:08,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:08,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:08,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:09,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:13,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 528 [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-14 22:56:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:13,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:13,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:13,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:13,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:13,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:56:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:13,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 22:56:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:13,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 22:56:13,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:56:13,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:13,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-14 22:56:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:13,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:13,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:13,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 22:56:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:13,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-14 22:56:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:14,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 22:56:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:14,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2020-10-14 22:56:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:14,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 22:56:14,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:14,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 550 proven. 87 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-14 22:56:14,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717674565] [2020-10-14 22:56:14,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:14,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:14,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592080428] [2020-10-14 22:56:14,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:14,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:14,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:14,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:14,433 INFO L87 Difference]: Start difference. First operand 50503 states and 55091 transitions. Second operand 7 states. [2020-10-14 22:56:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:26,857 INFO L93 Difference]: Finished difference Result 119112 states and 132919 transitions. [2020-10-14 22:56:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:26,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 510 [2020-10-14 22:56:26,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:27,393 INFO L225 Difference]: With dead ends: 119112 [2020-10-14 22:56:27,393 INFO L226 Difference]: Without dead ends: 68623 [2020-10-14 22:56:27,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:27,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68623 states. [2020-10-14 22:56:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68623 to 66835. [2020-10-14 22:56:28,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66835 states. [2020-10-14 22:56:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66835 states to 66835 states and 72525 transitions. [2020-10-14 22:56:28,428 INFO L78 Accepts]: Start accepts. Automaton has 66835 states and 72525 transitions. Word has length 510 [2020-10-14 22:56:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:28,429 INFO L479 AbstractCegarLoop]: Abstraction has 66835 states and 72525 transitions. [2020-10-14 22:56:28,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 66835 states and 72525 transitions. [2020-10-14 22:56:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-14 22:56:28,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:28,448 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:28,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:56:28,448 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:28,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1236665312, now seen corresponding path program 1 times [2020-10-14 22:56:28,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:28,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215450401] [2020-10-14 22:56:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:28,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:31,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:32,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 22:56:33,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:33,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:56:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 22:56:33,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:56:33,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:33,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:33,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 22:56:33,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:33,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:56:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:33,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:33,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:56:33,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:33,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:56:33,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:33,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 22:56:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 300 proven. 134 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-14 22:56:34,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215450401] [2020-10-14 22:56:34,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:34,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:56:34,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429977871] [2020-10-14 22:56:34,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:56:34,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:34,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:56:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:56:34,349 INFO L87 Difference]: Start difference. First operand 66835 states and 72525 transitions. Second operand 7 states. [2020-10-14 22:56:43,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:56:43,206 INFO L93 Difference]: Finished difference Result 145683 states and 159163 transitions. [2020-10-14 22:56:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:56:43,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 508 [2020-10-14 22:56:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:56:43,319 INFO L225 Difference]: With dead ends: 145683 [2020-10-14 22:56:43,319 INFO L226 Difference]: Without dead ends: 78858 [2020-10-14 22:56:43,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:56:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78858 states. [2020-10-14 22:56:44,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78858 to 76013. [2020-10-14 22:56:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76013 states. [2020-10-14 22:56:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76013 states to 76013 states and 81970 transitions. [2020-10-14 22:56:46,881 INFO L78 Accepts]: Start accepts. Automaton has 76013 states and 81970 transitions. Word has length 508 [2020-10-14 22:56:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:56:46,882 INFO L479 AbstractCegarLoop]: Abstraction has 76013 states and 81970 transitions. [2020-10-14 22:56:46,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:56:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 76013 states and 81970 transitions. [2020-10-14 22:56:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2020-10-14 22:56:46,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:56:46,891 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:56:46,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:56:46,891 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:56:46,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:56:46,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1228893438, now seen corresponding path program 1 times [2020-10-14 22:56:46,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:56:46,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732230017] [2020-10-14 22:56:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:56:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:47,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:49,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:52,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:52,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 746 [2020-10-14 22:56:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:56:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 613 [2020-10-14 22:56:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:52,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:56:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:52,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:52,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:52,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:56:52,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:56:52,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:52,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:56:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:56:52,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:52,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:56:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:52,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:52,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:56:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:56:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 22:56:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:52,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 22:56:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:52,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:52,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:52,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 410 [2020-10-14 22:56:52,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 22:56:52,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:52,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 22:56:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 410 [2020-10-14 22:56:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:52,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:56:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:52,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:52,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:56:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 22:56:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-10-14 22:56:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:56:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:56:53,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:56:53,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:56:53,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:56:53,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:56:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 302 proven. 119 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-14 22:56:53,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732230017] [2020-10-14 22:56:53,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:56:53,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:56:53,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199857895] [2020-10-14 22:56:53,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:56:53,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:56:53,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:56:53,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:56:53,605 INFO L87 Difference]: Start difference. First operand 76013 states and 81970 transitions. Second operand 9 states.