/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:46:05,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:46:05,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:46:05,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:46:05,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:46:05,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:46:05,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:46:05,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:46:05,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:46:05,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:46:05,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:46:05,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:46:05,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:46:05,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:46:05,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:46:05,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:46:05,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:46:05,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:46:05,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:46:05,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:46:05,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:46:05,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:46:05,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:46:05,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:46:05,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:46:05,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:46:05,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:46:05,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:46:05,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:46:05,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:46:05,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:46:05,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:46:05,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:46:05,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:46:05,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:46:05,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:46:05,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:46:05,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:46:05,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:46:05,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:46:05,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:46:05,624 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 [2020-09-24 23:46:05,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:46:05,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:46:05,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:46:05,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:46:05,683 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:46:05,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:46:05,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:46:05,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:46:05,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:46:05,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:46:05,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:46:05,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:46:05,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:46:05,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:46:05,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:46:05,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:46:05,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:46:05,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:46:05,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:46:05,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:46:05,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:46:05,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:05,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:46:05,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:46:05,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:46:05,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:46:05,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:46:05,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:46:05,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:46:05,690 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:46:06,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:46:06,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:46:06,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:46:06,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:46:06,190 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:46:06,191 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_25-1.c [2020-09-24 23:46:06,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caa0cb260/a54a112278f24b3c98788b29c2247528/FLAGc950a8f4b [2020-09-24 23:46:06,814 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:46:06,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_25-1.c [2020-09-24 23:46:06,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caa0cb260/a54a112278f24b3c98788b29c2247528/FLAGc950a8f4b [2020-09-24 23:46:07,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caa0cb260/a54a112278f24b3c98788b29c2247528 [2020-09-24 23:46:07,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:46:07,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:46:07,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:07,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:46:07,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:46:07,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07, skipping insertion in model container [2020-09-24 23:46:07,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:46:07,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:46:07,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:07,441 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:46:07,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:07,478 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:46:07,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07 WrapperNode [2020-09-24 23:46:07,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:07,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:46:07,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:46:07,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:46:07,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (1/1) ... [2020-09-24 23:46:07,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:46:07,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:46:07,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:46:07,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:46:07,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (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 [2020-09-24 23:46:07,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:46:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:46:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:46:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:46:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:46:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:46:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:46:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:46:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:46:07,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:46:07,889 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:46:07,889 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:46:07,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:07 BoogieIcfgContainer [2020-09-24 23:46:07,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:46:07,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:46:07,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:46:07,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:46:07,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:46:07" (1/3) ... [2020-09-24 23:46:07,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779bdc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:07, skipping insertion in model container [2020-09-24 23:46:07,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:07" (2/3) ... [2020-09-24 23:46:07,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779bdc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:07, skipping insertion in model container [2020-09-24 23:46:07,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:07" (3/3) ... [2020-09-24 23:46:07,931 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_25-1.c [2020-09-24 23:46:07,956 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:46:07,966 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:46:07,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:46:08,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:46:08,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:46:08,022 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:46:08,022 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:46:08,022 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:46:08,022 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:46:08,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:46:08,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:46:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:46:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:46:08,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:08,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:08,052 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:08,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:08,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:46:08,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:08,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177071083] [2020-09-24 23:46:08,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:46:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 23:46:08,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:46:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 23:46:08,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:08,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:08,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:08,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:08,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:08,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:08,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:46:08,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:08,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:08,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177071083] [2020-09-24 23:46:08,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:08,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:08,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410294304] [2020-09-24 23:46:08,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:08,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:08,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:08,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:08,552 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:46:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:08,679 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:46:08,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:08,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:46:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:08,692 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:08,693 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:46:08,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:46:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:46:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:08,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:08,746 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:46:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:08,747 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:08,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:08,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:46:08,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:08,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:08,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:46:08,751 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:08,751 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:46:08,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:08,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480341537] [2020-09-24 23:46:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:46:08,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 23:46:08,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:08,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:08,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:08,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:08,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:08,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:08,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:08,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:08,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:09,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:09,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:09,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:46:09,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:09,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480341537] [2020-09-24 23:46:09,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:09,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:09,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611612938] [2020-09-24 23:46:09,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:09,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:09,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:09,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:09,062 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:46:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:09,126 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:46:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:09,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:46:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:09,129 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:46:09,129 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:46:09,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:46:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:46:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:09,139 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:46:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:09,140 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:09,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:46:09,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:09,142 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-24 23:46:09,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:46:09,143 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:09,144 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:46:09,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:09,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214986434] [2020-09-24 23:46:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:09,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:09,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:46:11,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:11,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1903 [2020-09-24 23:46:11,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:46:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:11,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:11,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:11,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:11,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 23:46:11,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:11,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:11,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:11,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:11,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:11,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:11,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:11,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:11,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:11,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:11,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214986434] [2020-09-24 23:46:11,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:11,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:11,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220098757] [2020-09-24 23:46:11,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:11,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:11,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:11,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:11,397 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:46:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:11,533 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:46:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:11,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:46:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:11,536 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:11,536 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:46:11,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:46:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:46:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:11,548 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:46:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:11,549 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:11,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:46:11,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:11,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:11,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:46:11,552 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:11,553 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:46:11,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:11,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247909640] [2020-09-24 23:46:11,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:11,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:13,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:46:13,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:46:13,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1635 [2020-09-24 23:46:13,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:13,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:13,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:46:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:13,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:13,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:13,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:13,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:13,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:13,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:13,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:13,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:13,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-24 23:46:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:13,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:13,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:13,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:13,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:13,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:46:13,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:13,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:13,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:13,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:13,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:13,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247909640] [2020-09-24 23:46:13,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:13,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:13,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896248102] [2020-09-24 23:46:13,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:13,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:13,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:13,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:13,814 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 23:46:13,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:13,956 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-24 23:46:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:13,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 23:46:13,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:13,959 INFO L225 Difference]: With dead ends: 52 [2020-09-24 23:46:13,959 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:46:13,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:46:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-24 23:46:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:13,970 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-24 23:46:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:13,971 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:13,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 23:46:13,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:13,974 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:13,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:46:13,975 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:13,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-24 23:46:13,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:13,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600247000] [2020-09-24 23:46:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:14,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:18,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:19,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:46:19,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:19,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 23:46:19,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:19,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:46:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:19,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:19,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:19,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:19,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:19,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:19,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:19,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:19,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:19,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:20,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 23:46:24,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:46:24,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:46:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:46:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:24,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 23:46:24,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:24,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:24,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:24,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:24,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:24,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:24,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:24,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:24,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:24,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:24,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:24,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:24,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:46:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:46:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1703 [2020-09-24 23:46:26,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:46:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:26,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:46:26,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:26,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:46:26,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:26,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:26,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:26,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:26,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:46:26,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:26,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:26,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:26,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:26,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 56 proven. 69 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 23:46:26,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600247000] [2020-09-24 23:46:26,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:26,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 23:46:26,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991244605] [2020-09-24 23:46:26,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:46:26,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:26,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:46:26,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:46:26,451 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 14 states. [2020-09-24 23:46:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:26,766 INFO L93 Difference]: Finished difference Result 88 states and 125 transitions. [2020-09-24 23:46:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:46:26,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-09-24 23:46:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:26,770 INFO L225 Difference]: With dead ends: 88 [2020-09-24 23:46:26,772 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 23:46:26,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:46:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 23:46:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-09-24 23:46:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-24 23:46:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2020-09-24 23:46:26,793 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 84 [2020-09-24 23:46:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:26,795 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2020-09-24 23:46:26,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:46:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2020-09-24 23:46:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 23:46:26,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:26,803 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:26,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:46:26,804 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:26,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-24 23:46:26,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:26,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442917489] [2020-09-24 23:46:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:31,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:31,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:31,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:31,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:31,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:31,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:31,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:31,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:31,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:31,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:31,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:32,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:46:36,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:46:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:46:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:46:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:37,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:37,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 23:46:37,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:46:37,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:37,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:37,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:37,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:37,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:46:37,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:37,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:37,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:46:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:46:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:46:42,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:46:42,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:42,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:42,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:42,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:46:42,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 89 proven. 69 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-24 23:46:42,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442917489] [2020-09-24 23:46:42,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:42,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:46:42,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441432143] [2020-09-24 23:46:42,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:46:42,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:42,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:46:42,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:46:42,451 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand 11 states. [2020-09-24 23:46:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:42,790 INFO L93 Difference]: Finished difference Result 110 states and 172 transitions. [2020-09-24 23:46:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:46:42,790 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-09-24 23:46:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:42,793 INFO L225 Difference]: With dead ends: 110 [2020-09-24 23:46:42,794 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 23:46:42,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:46:42,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 23:46:42,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 23:46:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 23:46:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-09-24 23:46:42,818 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 89 [2020-09-24 23:46:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:42,819 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-09-24 23:46:42,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:46:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-09-24 23:46:42,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-24 23:46:42,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:42,827 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:42,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:46:42,828 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:42,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1883319261, now seen corresponding path program 1 times [2020-09-24 23:46:42,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:42,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832838548] [2020-09-24 23:46:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 23:46:47,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-09-24 23:46:47,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 23:46:47,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:46:47,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:47,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:46:47,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:47,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:47,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:47,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 23:46:52,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:52,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:52,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:52,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:53,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:57,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 23:46:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 23:46:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:46:57,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:57,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:46:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:57,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:57,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:57,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:58,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:46:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:58,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:58,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:58,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:46:58,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:46:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:58,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:46:58,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:58,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:58,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:58,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 23:46:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking...