/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem13_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:58:52,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:58:52,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:58:52,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:58:52,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:58:52,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:58:52,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:58:52,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:58:52,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:58:52,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:58:52,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:58:52,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:58:52,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:58:52,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:58:52,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:58:52,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:58:52,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:58:52,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:58:52,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:58:52,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:58:52,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:58:52,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:58:52,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:58:52,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:58:52,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:58:52,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:58:52,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:58:52,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:58:52,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:58:52,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:58:52,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:58:52,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:58:52,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:58:52,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:58:52,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:58:52,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:58:52,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:58:52,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:58:52,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:58:52,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:58:52,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:58:52,699 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 02:58:52,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:58:52,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:58:52,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:58:52,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:58:52,747 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:58:52,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:58:52,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:58:52,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:58:52,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:58:52,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:58:52,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:58:52,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:58:52,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:58:52,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:58:52,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:58:52,750 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:58:52,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:58:52,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:58:52,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:58:52,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:58:52,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:58:52,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:58:52,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:58:52,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:58:52,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:58:52,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:58:52,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:58:52,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:58:52,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:58:52,752 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:58:53,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:58:53,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:58:53,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:58:53,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:58:53,098 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:58:53,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label07.c [2020-10-14 02:58:53,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11c0790ba/84b05b4008014ce6b5558a664bd7c51b/FLAGcad0cb7c5 [2020-10-14 02:58:53,902 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:58:53,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem13_label07.c [2020-10-14 02:58:53,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11c0790ba/84b05b4008014ce6b5558a664bd7c51b/FLAGcad0cb7c5 [2020-10-14 02:58:54,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11c0790ba/84b05b4008014ce6b5558a664bd7c51b [2020-10-14 02:58:54,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:58:54,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:58:54,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:58:54,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:58:54,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:58:54,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:58:54" (1/1) ... [2020-10-14 02:58:54,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e827995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:54, skipping insertion in model container [2020-10-14 02:58:54,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:58:54" (1/1) ... [2020-10-14 02:58:54,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:58:54,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:58:56,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:58:56,243 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:58:56,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:58:56,955 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:58:56,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56 WrapperNode [2020-10-14 02:58:56,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:58:56,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:58:56,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:58:56,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:58:56,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:56,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (1/1) ... [2020-10-14 02:58:57,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:58:57,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:58:57,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:58:57,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:58:57,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (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 02:58:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:58:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:58:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:58:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 02:58:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 02:58:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 02:58:57,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:58:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:58:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 02:58:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 02:58:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 02:58:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:58:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:58:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:58:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:58:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:58:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:59:08,763 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:59:08,763 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:59:08,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:59:08 BoogieIcfgContainer [2020-10-14 02:59:08,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:59:08,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:59:08,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:59:08,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:59:08,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:58:54" (1/3) ... [2020-10-14 02:59:08,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526b675c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:59:08, skipping insertion in model container [2020-10-14 02:59:08,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:56" (2/3) ... [2020-10-14 02:59:08,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526b675c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:59:08, skipping insertion in model container [2020-10-14 02:59:08,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:59:08" (3/3) ... [2020-10-14 02:59:08,784 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem13_label07.c [2020-10-14 02:59:08,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:59:08,804 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:59:08,819 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:59:08,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:59:08,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:59:08,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:59:08,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:59:08,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:59:08,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:59:08,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:59:08,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:59:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states. [2020-10-14 02:59:08,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 02:59:08,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:59:08,914 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] [2020-10-14 02:59:08,914 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:59:08,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:59:08,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1124378712, now seen corresponding path program 1 times [2020-10-14 02:59:08,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:59:08,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341844108] [2020-10-14 02:59:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:59:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:09,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:09,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 02:59:09,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:09,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-14 02:59:09,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:09,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:59:09,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:59:09,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 02:59:09,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:59:09,749 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-10-14 02:59:09,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:59:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:09,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:09,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:09,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:59:09,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:09,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 02:59:09,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:09,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:59:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:59:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:59:09,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:59:09,829 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 02:59:09,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341844108] [2020-10-14 02:59:09,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:59:09,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:59:09,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771052399] [2020-10-14 02:59:09,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:59:09,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:59:09,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:59:09,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:59:09,856 INFO L87 Difference]: Start difference. First operand 1119 states. Second operand 4 states. [2020-10-14 02:59:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:59:23,064 INFO L93 Difference]: Finished difference Result 3243 states and 5948 transitions. [2020-10-14 02:59:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:59:23,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-14 02:59:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:59:23,109 INFO L225 Difference]: With dead ends: 3243 [2020-10-14 02:59:23,109 INFO L226 Difference]: Without dead ends: 2045 [2020-10-14 02:59:23,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:59:23,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-10-14 02:59:23,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1988. [2020-10-14 02:59:23,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1988 states. [2020-10-14 02:59:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3533 transitions. [2020-10-14 02:59:23,299 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3533 transitions. Word has length 27 [2020-10-14 02:59:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:59:23,300 INFO L479 AbstractCegarLoop]: Abstraction has 1988 states and 3533 transitions. [2020-10-14 02:59:23,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:59:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3533 transitions. [2020-10-14 02:59:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 02:59:23,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:59:23,310 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:59:23,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:59:23,310 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:59:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:59:23,311 INFO L82 PathProgramCache]: Analyzing trace with hash -2049609055, now seen corresponding path program 1 times [2020-10-14 02:59:23,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:59:23,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374526032] [2020-10-14 02:59:23,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:59:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:23,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:23,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:24,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:24,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:59:24,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:59:24,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-10-14 02:59:24,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:24,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:24,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:59:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 02:59:24,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 02:59:24,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:59:24,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:59:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:24,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:24,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:24,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:59:24,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:24,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:59:24,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:24,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:24,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:59:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:59:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:59:24,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:59:24,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:59:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:24,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:24,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 02:59:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 02:59:24,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:24,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:24,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:59:24,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:59:24,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 02:59:24,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:59:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:59:24,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374526032] [2020-10-14 02:59:24,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:59:24,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:59:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567290873] [2020-10-14 02:59:24,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:59:24,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:59:24,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:59:24,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:59:24,872 INFO L87 Difference]: Start difference. First operand 1988 states and 3533 transitions. Second operand 5 states. [2020-10-14 02:59:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:59:42,788 INFO L93 Difference]: Finished difference Result 5768 states and 10393 transitions. [2020-10-14 02:59:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:59:42,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-14 02:59:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:59:42,814 INFO L225 Difference]: With dead ends: 5768 [2020-10-14 02:59:42,814 INFO L226 Difference]: Without dead ends: 3786 [2020-10-14 02:59:42,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:59:42,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2020-10-14 02:59:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3763. [2020-10-14 02:59:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3763 states. [2020-10-14 02:59:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3763 states to 3763 states and 6157 transitions. [2020-10-14 02:59:42,922 INFO L78 Accepts]: Start accepts. Automaton has 3763 states and 6157 transitions. Word has length 96 [2020-10-14 02:59:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:59:42,923 INFO L479 AbstractCegarLoop]: Abstraction has 3763 states and 6157 transitions. [2020-10-14 02:59:42,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:59:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3763 states and 6157 transitions. [2020-10-14 02:59:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 02:59:42,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:59:42,926 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:59:42,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:59:42,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:59:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:59:42,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1897601325, now seen corresponding path program 1 times [2020-10-14 02:59:42,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:59:42,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102942298] [2020-10-14 02:59:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:59:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:43,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:43,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:43,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 02:59:43,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:59:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-14 02:59:43,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:43,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:59:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 02:59:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 02:59:43,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:59:43,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:59:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:43,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:43,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:59:43,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:43,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:59:43,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:43,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:59:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:59:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:59:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:59:43,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:59:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:44,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:44,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:59:44,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 02:59:44,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:59:44,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 02:59:44,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:59:44,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:59:44,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:59:44,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:59:44,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 02:59:44,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:59:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:59:44,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102942298] [2020-10-14 02:59:44,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:59:44,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:59:44,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559457729] [2020-10-14 02:59:44,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:59:44,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:59:44,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:59:44,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:59:44,224 INFO L87 Difference]: Start difference. First operand 3763 states and 6157 transitions. Second operand 5 states. [2020-10-14 02:59:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:59:57,355 INFO L93 Difference]: Finished difference Result 10823 states and 18034 transitions. [2020-10-14 02:59:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:59:57,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-14 02:59:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:59:57,400 INFO L225 Difference]: With dead ends: 10823 [2020-10-14 02:59:57,400 INFO L226 Difference]: Without dead ends: 7066 [2020-10-14 02:59:57,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:59:57,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7066 states. [2020-10-14 02:59:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7066 to 7049. [2020-10-14 02:59:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-14 02:59:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 10599 transitions. [2020-10-14 02:59:57,604 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 10599 transitions. Word has length 102 [2020-10-14 02:59:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:59:57,605 INFO L479 AbstractCegarLoop]: Abstraction has 7049 states and 10599 transitions. [2020-10-14 02:59:57,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:59:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 10599 transitions. [2020-10-14 02:59:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 02:59:57,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:59:57,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:59:57,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:59:57,612 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:59:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:59:57,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1125472664, now seen corresponding path program 1 times [2020-10-14 02:59:57,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:59:57,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085679814] [2020-10-14 02:59:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:59:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:59:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:57,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:59:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:02,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:02,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 03:00:02,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:00:02,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 03:00:02,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:02,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:00:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:00:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 03:00:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:00:02,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:00:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:02,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:02,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:02,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:00:02,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:02,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:00:02,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:02,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:00:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:00:02,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:00:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:00:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:00:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:02,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:02,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:00:02,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:00:02,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:02,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:00:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:00:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:00:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:00:02,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:00:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:02,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:03,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:03,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:00:03,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:03,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 03:00:03,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:03,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:00:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:00:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 03:00:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:00:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:00:03,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085679814] [2020-10-14 03:00:03,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:00:03,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:00:03,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262579385] [2020-10-14 03:00:03,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:00:03,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:00:03,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:00:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:00:03,207 INFO L87 Difference]: Start difference. First operand 7049 states and 10599 transitions. Second operand 8 states. [2020-10-14 03:00:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:00:34,489 INFO L93 Difference]: Finished difference Result 20974 states and 31802 transitions. [2020-10-14 03:00:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:00:34,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-10-14 03:00:34,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:00:34,566 INFO L225 Difference]: With dead ends: 20974 [2020-10-14 03:00:34,567 INFO L226 Difference]: Without dead ends: 13931 [2020-10-14 03:00:34,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:00:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13931 states. [2020-10-14 03:00:34,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13931 to 13838. [2020-10-14 03:00:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13838 states. [2020-10-14 03:00:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13838 states to 13838 states and 19303 transitions. [2020-10-14 03:00:34,989 INFO L78 Accepts]: Start accepts. Automaton has 13838 states and 19303 transitions. Word has length 178 [2020-10-14 03:00:34,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:00:34,992 INFO L479 AbstractCegarLoop]: Abstraction has 13838 states and 19303 transitions. [2020-10-14 03:00:34,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:00:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13838 states and 19303 transitions. [2020-10-14 03:00:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 03:00:35,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:00:35,007 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 03:00:35,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:00:35,007 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:00:35,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:00:35,008 INFO L82 PathProgramCache]: Analyzing trace with hash -496221332, now seen corresponding path program 1 times [2020-10-14 03:00:35,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:00:35,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246141463] [2020-10-14 03:00:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:00:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:35,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:35,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:38,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:40,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:40,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 03:00:40,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:00:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 03:00:40,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:40,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:00:40,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:00:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 03:00:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:00:40,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:00:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:40,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:40,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:40,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:00:40,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:00:40,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:40,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:00:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:00:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:00:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:00:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:00:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:00:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:00:40,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:40,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:00:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:00:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:00:40,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:00:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:00:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:00:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:00:40,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:00:40,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:00:40,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:00:40,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 03:00:40,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:00:40,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:00:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:00:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:00:40,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 03:00:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:00:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:00:40,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246141463] [2020-10-14 03:00:40,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:00:40,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:00:40,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885500217] [2020-10-14 03:00:40,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:00:40,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:00:40,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:00:40,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:00:40,509 INFO L87 Difference]: Start difference. First operand 13838 states and 19303 transitions. Second operand 7 states. [2020-10-14 03:01:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:01:01,140 INFO L93 Difference]: Finished difference Result 34644 states and 51252 transitions. [2020-10-14 03:01:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:01:01,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-14 03:01:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:01:01,262 INFO L225 Difference]: With dead ends: 34644 [2020-10-14 03:01:01,263 INFO L226 Difference]: Without dead ends: 20816 [2020-10-14 03:01:01,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:01:01,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20816 states. [2020-10-14 03:01:01,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20816 to 20660. [2020-10-14 03:01:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20660 states. [2020-10-14 03:01:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20660 states to 20660 states and 28713 transitions. [2020-10-14 03:01:01,937 INFO L78 Accepts]: Start accepts. Automaton has 20660 states and 28713 transitions. Word has length 195 [2020-10-14 03:01:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:01:01,938 INFO L479 AbstractCegarLoop]: Abstraction has 20660 states and 28713 transitions. [2020-10-14 03:01:01,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:01:01,938 INFO L276 IsEmpty]: Start isEmpty. Operand 20660 states and 28713 transitions. [2020-10-14 03:01:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-14 03:01:01,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:01:01,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 03:01:01,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:01:01,946 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:01:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:01:01,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1678109392, now seen corresponding path program 1 times [2020-10-14 03:01:01,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:01:01,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199861503] [2020-10-14 03:01:01,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:01:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:02,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:02,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:06,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:06,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-14 03:01:06,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:01:06,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:01:06,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:06,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:01:06,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 03:01:06,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:01:07,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:01:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:07,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:07,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:07,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:01:07,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:07,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:01:07,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:07,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:01:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:01:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:01:07,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:01:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:07,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:01:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:01:07,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:07,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:01:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:01:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:07,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:01:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:07,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:07,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:01:07,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 03:01:07,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:07,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:07,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:01:07,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 03:01:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:01:07,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199861503] [2020-10-14 03:01:07,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:01:07,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:01:07,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237982914] [2020-10-14 03:01:07,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:01:07,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:01:07,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:01:07,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:01:07,677 INFO L87 Difference]: Start difference. First operand 20660 states and 28713 transitions. Second operand 7 states. [2020-10-14 03:01:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:01:29,558 INFO L93 Difference]: Finished difference Result 47309 states and 69181 transitions. [2020-10-14 03:01:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:01:29,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-14 03:01:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:01:29,678 INFO L225 Difference]: With dead ends: 47309 [2020-10-14 03:01:29,678 INFO L226 Difference]: Without dead ends: 26659 [2020-10-14 03:01:29,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:01:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2020-10-14 03:01:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 25473. [2020-10-14 03:01:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25473 states. [2020-10-14 03:01:30,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25473 states to 25473 states and 35774 transitions. [2020-10-14 03:01:30,372 INFO L78 Accepts]: Start accepts. Automaton has 25473 states and 35774 transitions. Word has length 197 [2020-10-14 03:01:30,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:01:30,372 INFO L479 AbstractCegarLoop]: Abstraction has 25473 states and 35774 transitions. [2020-10-14 03:01:30,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:01:30,373 INFO L276 IsEmpty]: Start isEmpty. Operand 25473 states and 35774 transitions. [2020-10-14 03:01:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-14 03:01:30,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:01:30,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:30,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:01:30,380 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:01:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:01:30,381 INFO L82 PathProgramCache]: Analyzing trace with hash 873161756, now seen corresponding path program 1 times [2020-10-14 03:01:30,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:01:30,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760415147] [2020-10-14 03:01:30,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:01:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:30,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:30,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:31,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:32,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:34,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4520 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-14 03:01:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 03:01:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:01:34,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:01:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:34,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:34,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:01:34,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:34,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:01:34,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:34,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:01:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:01:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:01:35,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:01:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:35,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:35,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:01:35,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:01:35,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:35,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:01:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:35,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 03:01:35,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:35,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 03:01:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:35,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:35,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:35,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:01:35,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:35,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 03:01:35,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:35,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:35,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:35,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:01:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 03:01:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:01:35,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760415147] [2020-10-14 03:01:35,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:01:35,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:01:35,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591078189] [2020-10-14 03:01:35,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:01:35,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:01:35,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:01:35,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:01:35,365 INFO L87 Difference]: Start difference. First operand 25473 states and 35774 transitions. Second operand 7 states. [2020-10-14 03:01:55,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:01:55,471 INFO L93 Difference]: Finished difference Result 76073 states and 117816 transitions. [2020-10-14 03:01:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:01:55,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-14 03:01:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:01:55,643 INFO L225 Difference]: With dead ends: 76073 [2020-10-14 03:01:55,644 INFO L226 Difference]: Without dead ends: 50610 [2020-10-14 03:01:55,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:01:55,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50610 states. [2020-10-14 03:01:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50610 to 50287. [2020-10-14 03:01:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50287 states. [2020-10-14 03:01:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50287 states to 50287 states and 70161 transitions. [2020-10-14 03:01:56,781 INFO L78 Accepts]: Start accepts. Automaton has 50287 states and 70161 transitions. Word has length 204 [2020-10-14 03:01:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:01:56,782 INFO L479 AbstractCegarLoop]: Abstraction has 50287 states and 70161 transitions. [2020-10-14 03:01:56,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:01:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 50287 states and 70161 transitions. [2020-10-14 03:01:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-14 03:01:56,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:01:56,789 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:01:56,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:01:56,789 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:01:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:01:56,790 INFO L82 PathProgramCache]: Analyzing trace with hash 755442190, now seen corresponding path program 1 times [2020-10-14 03:01:56,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:01:56,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130095106] [2020-10-14 03:01:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:01:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:56,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:57,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:58,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:58,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 03:01:58,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:01:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1948 [2020-10-14 03:01:58,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:58,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 03:01:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:01:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:01:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:58,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:58,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:58,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:01:58,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:58,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:01:58,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:58,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:01:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:58,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:01:58,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:01:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:58,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:59,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:01:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:01:59,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:59,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:01:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:01:59,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:01:59,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:59,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 03:01:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:01:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:01:59,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:01:59,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 03:01:59,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:01:59,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:01:59,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:01:59,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:01:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:01:59,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:01:59,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 03:01:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:01:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:01:59,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130095106] [2020-10-14 03:01:59,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:01:59,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:01:59,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252163817] [2020-10-14 03:01:59,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:01:59,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:01:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:01:59,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:01:59,505 INFO L87 Difference]: Start difference. First operand 50287 states and 70161 transitions. Second operand 7 states. [2020-10-14 03:02:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:02:27,141 INFO L93 Difference]: Finished difference Result 141136 states and 213160 transitions. [2020-10-14 03:02:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:02:27,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-14 03:02:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:02:27,467 INFO L225 Difference]: With dead ends: 141136 [2020-10-14 03:02:27,469 INFO L226 Difference]: Without dead ends: 89176 [2020-10-14 03:02:27,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:02:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89176 states. [2020-10-14 03:02:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89176 to 87908. [2020-10-14 03:02:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87908 states. [2020-10-14 03:02:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87908 states to 87908 states and 120384 transitions. [2020-10-14 03:02:31,512 INFO L78 Accepts]: Start accepts. Automaton has 87908 states and 120384 transitions. Word has length 222 [2020-10-14 03:02:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:02:31,512 INFO L479 AbstractCegarLoop]: Abstraction has 87908 states and 120384 transitions. [2020-10-14 03:02:31,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:02:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 87908 states and 120384 transitions. [2020-10-14 03:02:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-14 03:02:31,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:02:31,525 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:02:31,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:02:31,526 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:02:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:02:31,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1476163340, now seen corresponding path program 1 times [2020-10-14 03:02:31,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:02:31,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386567374] [2020-10-14 03:02:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:02:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:02:31,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:02:31,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:02:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:02:35,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:02:35,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-14 03:02:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:02:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4001 [2020-10-14 03:02:35,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:02:35,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:02:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:02:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-14 03:02:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 03:02:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:02:35,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:02:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:02:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:02:35,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:02:35,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:02:35,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:02:35,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:02:35,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:02:35,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:02:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:02:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:02:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:02:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:02:35,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:02:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:02:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:02:35,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:02:35,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 03:02:35,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:02:35,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:02:35,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:02:35,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:02:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:02:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:02:35,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 03:02:35,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:02:35,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 03:02:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat