/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 SingleStatement --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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:03:53,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:03:53,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:03:53,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:03:53,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:03:53,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:03:53,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:03:53,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:03:53,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:03:53,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:03:53,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:03:53,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:03:53,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:03:53,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:03:53,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:03:53,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:03:53,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:03:53,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:03:53,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:03:53,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:03:53,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:03:53,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:03:53,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:03:53,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:03:53,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:03:53,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:03:53,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:03:53,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:03:53,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:03:53,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:03:53,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:03:53,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:03:53,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:03:53,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:03:53,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:03:53,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:03:53,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:03:53,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:03:53,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:03:53,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:03:53,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:03:53,963 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 [2020-09-25 09:03:54,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:03:54,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:03:54,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:03:54,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:03:54,015 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:03:54,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:03:54,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:03:54,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:03:54,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:03:54,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:03:54,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:03:54,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:03:54,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:03:54,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:03:54,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:03:54,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:03:54,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:03:54,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:03:54,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:03:54,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:03:54,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:03:54,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:03:54,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:03:54,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:03:54,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:03:54,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:03:54,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:03:54,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:03:54,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:03:54,021 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 -> SingleStatement 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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=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=1.0;log-additional-information=true; [2020-09-25 09:03:54,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:03:54,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:03:54,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:03:54,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:03:54,484 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:03:54,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 09:03:54,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232658e1/136eadcfb46f40d89dc448ce4ea26eb4/FLAG75bb64f62 [2020-09-25 09:03:55,189 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:03:55,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 09:03:55,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232658e1/136eadcfb46f40d89dc448ce4ea26eb4/FLAG75bb64f62 [2020-09-25 09:03:55,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a232658e1/136eadcfb46f40d89dc448ce4ea26eb4 [2020-09-25 09:03:55,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:03:55,472 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:03:55,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:03:55,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:03:55,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:03:55,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:03:55" (1/1) ... [2020-09-25 09:03:55,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fbba0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:55, skipping insertion in model container [2020-09-25 09:03:55,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:03:55" (1/1) ... [2020-09-25 09:03:55,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:03:55,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:03:56,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:03:56,115 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:03:56,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:03:56,283 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:03:56,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56 WrapperNode [2020-09-25 09:03:56,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:03:56,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:03:56,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:03:56,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:03:56,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (1/1) ... [2020-09-25 09:03:56,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:03:56,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:03:56,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:03:56,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:03:56,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (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 [2020-09-25 09:03:56,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:03:56,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:03:56,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 09:03:56,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:03:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 09:03:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:03:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:03:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 09:03:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:03:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:03:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:03:57,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:03:57,909 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 09:03:57,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:03:57 BoogieIcfgContainer [2020-09-25 09:03:57,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:03:57,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:03:57,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:03:57,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:03:57,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:03:55" (1/3) ... [2020-09-25 09:03:57,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711a80c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:03:57, skipping insertion in model container [2020-09-25 09:03:57,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:03:56" (2/3) ... [2020-09-25 09:03:57,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711a80c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:03:57, skipping insertion in model container [2020-09-25 09:03:57,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:03:57" (3/3) ... [2020-09-25 09:03:57,929 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label50.c [2020-09-25 09:03:57,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:03:57,952 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:03:57,975 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:03:58,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:03:58,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:03:58,013 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:03:58,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:03:58,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:03:58,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:03:58,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:03:58,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:03:58,051 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 09:03:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 09:03:58,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:03:58,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:03:58,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:03:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:03:58,080 INFO L82 PathProgramCache]: Analyzing trace with hash -593885342, now seen corresponding path program 1 times [2020-09-25 09:03:58,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:03:58,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86157807] [2020-09-25 09:03:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:03:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:03:58,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:03:58,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:03:59,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:02,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:02,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 09:04:02,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:04:02,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4349 [2020-09-25 09:04:02,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:02,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:04:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:04:02,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 09:04:02,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:04:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:02,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:02,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:02,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:02,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 09:04:02,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:02,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:04:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:04:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:04:03,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86157807] [2020-09-25 09:04:03,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:04:03,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:04:03,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270914872] [2020-09-25 09:04:03,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:04:03,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:03,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:04:03,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:04:03,090 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-09-25 09:04:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:06,143 INFO L93 Difference]: Finished difference Result 1539 states and 2132 transitions. [2020-09-25 09:04:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:04:06,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-09-25 09:04:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:06,180 INFO L225 Difference]: With dead ends: 1539 [2020-09-25 09:04:06,180 INFO L226 Difference]: Without dead ends: 935 [2020-09-25 09:04:06,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:04:06,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-09-25 09:04:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 878. [2020-09-25 09:04:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 09:04:06,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1089 transitions. [2020-09-25 09:04:06,325 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1089 transitions. Word has length 107 [2020-09-25 09:04:06,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:06,326 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1089 transitions. [2020-09-25 09:04:06,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:04:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1089 transitions. [2020-09-25 09:04:06,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 09:04:06,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:06,339 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:06,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:04:06,339 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:06,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1658093710, now seen corresponding path program 1 times [2020-09-25 09:04:06,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:06,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859936382] [2020-09-25 09:04:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:06,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:06,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:06,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:09,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:09,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 09:04:09,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:04:09,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3057 [2020-09-25 09:04:09,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:09,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:04:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 09:04:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 09:04:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:09,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:09,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:09,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 09:04:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:09,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:09,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:09,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 09:04:09,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:09,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:09,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:09,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:09,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:09,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:04:09,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:04:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 09:04:09,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:09,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:04:09,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 09:04:09,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859936382] [2020-09-25 09:04:09,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:09,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:04:09,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122156988] [2020-09-25 09:04:09,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:04:09,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:09,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:04:09,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:04:09,876 INFO L87 Difference]: Start difference. First operand 878 states and 1089 transitions. Second operand 6 states. [2020-09-25 09:04:11,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:11,979 INFO L93 Difference]: Finished difference Result 2241 states and 2931 transitions. [2020-09-25 09:04:11,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:04:11,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2020-09-25 09:04:11,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:11,997 INFO L225 Difference]: With dead ends: 2241 [2020-09-25 09:04:11,997 INFO L226 Difference]: Without dead ends: 1385 [2020-09-25 09:04:12,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:04:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2020-09-25 09:04:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1339. [2020-09-25 09:04:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2020-09-25 09:04:12,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1694 transitions. [2020-09-25 09:04:12,097 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1694 transitions. Word has length 125 [2020-09-25 09:04:12,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:12,098 INFO L479 AbstractCegarLoop]: Abstraction has 1339 states and 1694 transitions. [2020-09-25 09:04:12,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:04:12,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1694 transitions. [2020-09-25 09:04:12,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-25 09:04:12,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:12,112 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:12,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:04:12,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:12,114 INFO L82 PathProgramCache]: Analyzing trace with hash -125182521, now seen corresponding path program 1 times [2020-09-25 09:04:12,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:12,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163203124] [2020-09-25 09:04:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:12,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:12,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:14,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:14,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 09:04:14,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:04:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-09-25 09:04:14,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:14,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 09:04:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 09:04:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:14,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:14,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:04:14,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:14,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:14,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 09:04:14,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 09:04:14,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:14,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:04:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:04:14,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163203124] [2020-09-25 09:04:14,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:14,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 09:04:14,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089306885] [2020-09-25 09:04:14,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:04:14,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:14,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:04:14,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:04:14,505 INFO L87 Difference]: Start difference. First operand 1339 states and 1694 transitions. Second operand 5 states. [2020-09-25 09:04:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:16,526 INFO L93 Difference]: Finished difference Result 3438 states and 4495 transitions. [2020-09-25 09:04:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:04:16,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-09-25 09:04:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:16,542 INFO L225 Difference]: With dead ends: 3438 [2020-09-25 09:04:16,543 INFO L226 Difference]: Without dead ends: 1282 [2020-09-25 09:04:16,553 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 [2020-09-25 09:04:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2020-09-25 09:04:16,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1266. [2020-09-25 09:04:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-09-25 09:04:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1577 transitions. [2020-09-25 09:04:16,609 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1577 transitions. Word has length 141 [2020-09-25 09:04:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:16,611 INFO L479 AbstractCegarLoop]: Abstraction has 1266 states and 1577 transitions. [2020-09-25 09:04:16,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:04:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1577 transitions. [2020-09-25 09:04:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-25 09:04:16,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:16,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:16,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:04:16,621 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1712229635, now seen corresponding path program 1 times [2020-09-25 09:04:16,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:16,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762349562] [2020-09-25 09:04:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:17,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:17,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 09:04:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 09:04:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:17,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:04:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 09:04:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 09:04:17,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:17,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:17,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:17,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:17,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:17,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:04:17,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:17,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:17,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:17,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:17,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:04:17,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:17,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:17,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:17,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:17,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:04:17,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:17,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 09:04:17,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:17,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:17,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:04:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:17,392 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:04:17,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762349562] [2020-09-25 09:04:17,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:04:17,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:04:17,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570330755] [2020-09-25 09:04:17,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:04:17,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:17,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:04:17,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:04:17,397 INFO L87 Difference]: Start difference. First operand 1266 states and 1577 transitions. Second operand 7 states. [2020-09-25 09:04:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:19,229 INFO L93 Difference]: Finished difference Result 3520 states and 4532 transitions. [2020-09-25 09:04:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:04:19,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-09-25 09:04:19,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:19,246 INFO L225 Difference]: With dead ends: 3520 [2020-09-25 09:04:19,247 INFO L226 Difference]: Without dead ends: 2276 [2020-09-25 09:04:19,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:04:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2020-09-25 09:04:19,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2218. [2020-09-25 09:04:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2218 states. [2020-09-25 09:04:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2630 transitions. [2020-09-25 09:04:19,341 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2630 transitions. Word has length 145 [2020-09-25 09:04:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:19,341 INFO L479 AbstractCegarLoop]: Abstraction has 2218 states and 2630 transitions. [2020-09-25 09:04:19,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:04:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2630 transitions. [2020-09-25 09:04:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 09:04:19,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:19,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:19,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:04:19,349 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:19,350 INFO L82 PathProgramCache]: Analyzing trace with hash 740847210, now seen corresponding path program 1 times [2020-09-25 09:04:19,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:19,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773481961] [2020-09-25 09:04:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:19,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:19,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 09:04:19,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 09:04:19,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:19,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 09:04:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 09:04:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:19,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:19,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:19,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:19,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:04:19,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:19,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:19,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:19,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:19,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:19,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:19,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:19,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:04:19,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:04:19,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:19,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:19,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:19,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:04:19,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:19,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 09:04:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:19,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:19,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:19,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:04:19,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 09:04:19,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:19,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:19,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:04:19,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:04:20,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773481961] [2020-09-25 09:04:20,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:20,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 09:04:20,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507077953] [2020-09-25 09:04:20,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:04:20,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:20,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:04:20,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:04:20,050 INFO L87 Difference]: Start difference. First operand 2218 states and 2630 transitions. Second operand 8 states. [2020-09-25 09:04:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:22,326 INFO L93 Difference]: Finished difference Result 4924 states and 5960 transitions. [2020-09-25 09:04:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:04:22,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-09-25 09:04:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:22,348 INFO L225 Difference]: With dead ends: 4924 [2020-09-25 09:04:22,348 INFO L226 Difference]: Without dead ends: 2728 [2020-09-25 09:04:22,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:04:22,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2020-09-25 09:04:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2692. [2020-09-25 09:04:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-09-25 09:04:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3222 transitions. [2020-09-25 09:04:22,439 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3222 transitions. Word has length 162 [2020-09-25 09:04:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:22,440 INFO L479 AbstractCegarLoop]: Abstraction has 2692 states and 3222 transitions. [2020-09-25 09:04:22,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:04:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3222 transitions. [2020-09-25 09:04:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 09:04:22,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:22,452 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:22,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:04:22,452 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:22,453 INFO L82 PathProgramCache]: Analyzing trace with hash -451289247, now seen corresponding path program 1 times [2020-09-25 09:04:22,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:22,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568240484] [2020-09-25 09:04:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:22,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:23,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:23,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 09:04:23,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:04:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-09-25 09:04:23,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:23,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:04:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 09:04:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 09:04:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:23,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:23,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:04:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:23,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:23,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:04:23,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 09:04:23,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:23,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:04:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:23,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 09:04:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:23,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:04:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:04:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 09:04:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:23,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:04:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 47 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 09:04:23,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568240484] [2020-09-25 09:04:23,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:23,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:04:23,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421953910] [2020-09-25 09:04:23,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:04:23,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:23,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:04:23,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:04:23,736 INFO L87 Difference]: Start difference. First operand 2692 states and 3222 transitions. Second operand 6 states. [2020-09-25 09:04:25,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:25,679 INFO L93 Difference]: Finished difference Result 6875 states and 8378 transitions. [2020-09-25 09:04:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:04:25,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 09:04:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:25,698 INFO L225 Difference]: With dead ends: 6875 [2020-09-25 09:04:25,698 INFO L226 Difference]: Without dead ends: 3868 [2020-09-25 09:04:25,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:04:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2020-09-25 09:04:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 3750. [2020-09-25 09:04:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3750 states. [2020-09-25 09:04:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4436 transitions. [2020-09-25 09:04:25,800 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4436 transitions. Word has length 167 [2020-09-25 09:04:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:25,801 INFO L479 AbstractCegarLoop]: Abstraction has 3750 states and 4436 transitions. [2020-09-25 09:04:25,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:04:25,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4436 transitions. [2020-09-25 09:04:25,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 09:04:25,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:25,812 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:25,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:04:25,812 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:25,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1319203817, now seen corresponding path program 1 times [2020-09-25 09:04:25,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:25,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392361197] [2020-09-25 09:04:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:25,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:26,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:30,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:30,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 09:04:30,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:04:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:04:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:04:30,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:30,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:30,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:30,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:30,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 09:04:30,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:30,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:04:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:04:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:31,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:31,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:31,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:04:31,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:31,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 09:04:31,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:31,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:31,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:04:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:31,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 09:04:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:31,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:31,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:31,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 09:04:31,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 09:04:31,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:31,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:31,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 09:04:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:31,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:04:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:31,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:31,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:31,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 09:04:31,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:31,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:04:31,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:31,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 09:04:31,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 75 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:04:31,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392361197] [2020-09-25 09:04:31,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:31,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:04:31,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404459936] [2020-09-25 09:04:31,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:04:31,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:31,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:04:31,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:04:31,223 INFO L87 Difference]: Start difference. First operand 3750 states and 4436 transitions. Second operand 7 states. [2020-09-25 09:04:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:33,312 INFO L93 Difference]: Finished difference Result 7600 states and 9026 transitions. [2020-09-25 09:04:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:04:33,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-09-25 09:04:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:33,334 INFO L225 Difference]: With dead ends: 7600 [2020-09-25 09:04:33,334 INFO L226 Difference]: Without dead ends: 3871 [2020-09-25 09:04:33,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:04:33,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2020-09-25 09:04:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3754. [2020-09-25 09:04:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3754 states. [2020-09-25 09:04:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 4350 transitions. [2020-09-25 09:04:33,442 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 4350 transitions. Word has length 193 [2020-09-25 09:04:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:33,443 INFO L479 AbstractCegarLoop]: Abstraction has 3754 states and 4350 transitions. [2020-09-25 09:04:33,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:04:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 4350 transitions. [2020-09-25 09:04:33,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 09:04:33,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:33,456 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:33,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:04:33,457 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:33,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:33,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1664304064, now seen corresponding path program 1 times [2020-09-25 09:04:33,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:33,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130932332] [2020-09-25 09:04:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:33,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:35,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:35,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 09:04:35,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:04:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1630 [2020-09-25 09:04:35,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:35,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 09:04:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 09:04:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:04:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:35,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:35,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:35,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:04:35,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:35,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:35,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:35,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:35,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:35,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:35,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:04:35,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:35,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:04:35,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:35,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:35,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:35,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:35,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:04:35,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:04:35,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 09:04:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:35,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:35,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:04:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:04:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 09:04:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:04:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 09:04:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:35,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:35,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 09:04:35,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:04:35,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:35,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 09:04:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:35,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 09:04:35,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130932332] [2020-09-25 09:04:35,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:04:35,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:04:35,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644074513] [2020-09-25 09:04:35,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:04:35,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:04:35,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:04:35,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:04:35,420 INFO L87 Difference]: Start difference. First operand 3754 states and 4350 transitions. Second operand 7 states. [2020-09-25 09:04:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:04:37,534 INFO L93 Difference]: Finished difference Result 7520 states and 8739 transitions. [2020-09-25 09:04:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:04:37,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-25 09:04:37,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:04:37,557 INFO L225 Difference]: With dead ends: 7520 [2020-09-25 09:04:37,557 INFO L226 Difference]: Without dead ends: 3788 [2020-09-25 09:04:37,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:04:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2020-09-25 09:04:37,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3754. [2020-09-25 09:04:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3754 states. [2020-09-25 09:04:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 4237 transitions. [2020-09-25 09:04:37,644 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 4237 transitions. Word has length 198 [2020-09-25 09:04:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:04:37,644 INFO L479 AbstractCegarLoop]: Abstraction has 3754 states and 4237 transitions. [2020-09-25 09:04:37,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:04:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 4237 transitions. [2020-09-25 09:04:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 09:04:37,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:04:37,655 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:04:37,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 09:04:37,655 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:04:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:04:37,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1117172267, now seen corresponding path program 1 times [2020-09-25 09:04:37,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:04:37,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438696952] [2020-09-25 09:04:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:04:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:37,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:38,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:42,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:42,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 09:04:42,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:04:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 09:04:42,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:42,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:42,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:04:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 09:04:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 09:04:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:04:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:42,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:42,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:42,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:04:42,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:42,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:04:42,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:42,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:42,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:42,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:04:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:42,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:42,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 09:04:42,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:04:42,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:42,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:04:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:04:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:42,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 09:04:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:04:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:04:42,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:04:42,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:04:42,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:04:42,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:04:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:04:42,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:04:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:04:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:04:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:04:42,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:04:42,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 09:04:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat