/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_2calls_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:59:42,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:59:42,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:59:42,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:59:42,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:59:42,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:59:42,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:59:42,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:59:42,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:59:42,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:59:42,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:59:42,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:59:42,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:59:42,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:59:42,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:59:42,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:59:42,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:59:42,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:59:42,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:59:42,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:59:42,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:59:42,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:59:42,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:59:42,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:59:42,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:59:42,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:59:42,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:59:42,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:59:42,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:59:42,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:59:42,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:59:42,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:59:42,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:59:42,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:59:42,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:59:42,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:59:42,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:59:42,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:59:42,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:59:42,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:59:42,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:59:42,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:59:42,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:59:42,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:59:42,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:59:42,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:59:42,775 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:59:42,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:59:42,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:59:42,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:59:42,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:59:42,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:59:42,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:59:42,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:59:42,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:59:42,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:59:42,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:59:42,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:59:42,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:59:42,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:59:42,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:59:42,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:59:42,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:59:42,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:42,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:59:42,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:59:42,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:59:42,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:59:42,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:59:42,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:59:42,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:59:42,780 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:59:43,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:59:43,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:59:43,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:59:43,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:59:43,269 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:59:43,270 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 09:59:43,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba2ae4636/9d1c783b7899440daca1a957f47edc2a/FLAGce0f02075 [2020-09-25 09:59:43,893 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:59:43,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 09:59:43,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba2ae4636/9d1c783b7899440daca1a957f47edc2a/FLAGce0f02075 [2020-09-25 09:59:44,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba2ae4636/9d1c783b7899440daca1a957f47edc2a [2020-09-25 09:59:44,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:59:44,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:59:44,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:44,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:59:44,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:59:44,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784726a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44, skipping insertion in model container [2020-09-25 09:59:44,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:59:44,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:59:44,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:44,667 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:59:44,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:44,717 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:59:44,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44 WrapperNode [2020-09-25 09:59:44,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:44,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:59:44,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:59:44,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:59:44,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... [2020-09-25 09:59:44,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:59:44,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:59:44,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:59:44,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:59:44,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:59:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:59:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 09:59:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 09:59:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:59:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:59:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:59:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 09:59:44,963 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 09:59:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:59:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:59:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:59:45,199 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:59:45,200 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:59:45,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:45 BoogieIcfgContainer [2020-09-25 09:59:45,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:59:45,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:59:45,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:59:45,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:59:45,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:59:44" (1/3) ... [2020-09-25 09:59:45,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260cd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:45, skipping insertion in model container [2020-09-25 09:59:45,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:44" (2/3) ... [2020-09-25 09:59:45,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260cd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:45, skipping insertion in model container [2020-09-25 09:59:45,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:45" (3/3) ... [2020-09-25 09:59:45,215 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-2.c [2020-09-25 09:59:45,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:59:45,236 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:59:45,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:59:45,286 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:59:45,286 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:59:45,286 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:59:45,287 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:59:45,287 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:59:45,287 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:59:45,287 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:59:45,287 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:59:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 09:59:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 09:59:45,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:45,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:45,315 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:45,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:45,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 09:59:45,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:45,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444427259] [2020-09-25 09:59:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:45,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:45,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:45,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:45,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 09:59:45,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:45,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:45,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:45,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:59:45,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:59:45,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:45,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:45,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:45,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:45,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:45,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:45,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:45,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:45,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:45,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:45,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 09:59:45,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:45,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:45,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444427259] [2020-09-25 09:59:45,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:45,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:45,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892836967] [2020-09-25 09:59:45,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:45,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:45,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:45,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:45,681 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 09:59:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:45,806 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 09:59:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:45,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 09:59:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:45,825 INFO L225 Difference]: With dead ends: 58 [2020-09-25 09:59:45,825 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 09:59:45,830 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 [2020-09-25 09:59:45,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 09:59:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 09:59:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 09:59:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 09:59:45,894 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 09:59:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:45,895 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 09:59:45,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 09:59:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 09:59:45,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:45,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:45,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:59:45,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:45,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:45,899 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 09:59:45,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:45,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945890346] [2020-09-25 09:59:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:45,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 09:59:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 09:59:46,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:46,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:46,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:46,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:46,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:46,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:46,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:46,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:46,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:46,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:46,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:46,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 09:59:46,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:46,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:46,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945890346] [2020-09-25 09:59:46,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:46,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:46,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156723555] [2020-09-25 09:59:46,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:46,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:46,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:46,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:46,136 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 09:59:46,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:46,213 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 09:59:46,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:46,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 09:59:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:46,216 INFO L225 Difference]: With dead ends: 50 [2020-09-25 09:59:46,216 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 09:59:46,218 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 [2020-09-25 09:59:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 09:59:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 09:59:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 09:59:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 09:59:46,229 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 09:59:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:46,231 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 09:59:46,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 09:59:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 09:59:46,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:46,234 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:46,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:59:46,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:46,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:46,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 09:59:46,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:46,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833335094] [2020-09-25 09:59:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:46,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:46,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 09:59:46,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:46,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-09-25 09:59:46,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:46,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:46,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:46,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:46,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:46,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:46,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:46,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:46,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:46,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:46,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:46,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:47,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:47,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:47,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 09:59:47,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:47,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:47,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:47,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:47,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:47,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:47,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:47,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:47,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:47,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:47,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:47,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:47,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:47,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:47,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:47,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:47,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:47,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:59:47,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833335094] [2020-09-25 09:59:47,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:47,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:59:47,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83274961] [2020-09-25 09:59:47,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:47,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:47,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:47,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:47,334 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 09:59:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:47,487 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 09:59:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:47,488 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 09:59:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:47,490 INFO L225 Difference]: With dead ends: 58 [2020-09-25 09:59:47,490 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 09:59:47,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 09:59:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 09:59:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 09:59:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 09:59:47,503 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 09:59:47,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:47,503 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 09:59:47,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 09:59:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 09:59:47,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:47,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:47,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:59:47,506 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:47,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:47,507 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 09:59:47,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:47,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191119446] [2020-09-25 09:59:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:47,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:48,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:48,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-09-25 09:59:48,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:59:48,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:48,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:48,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:48,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:48,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-25 09:59:48,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:48,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:48,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:48,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:48,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:59:48,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:48,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:48,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:59:48,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191119446] [2020-09-25 09:59:48,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:48,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:48,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758155052] [2020-09-25 09:59:48,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:48,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:48,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:48,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:48,620 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 09:59:48,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:48,732 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 09:59:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:48,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 09:59:48,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:48,735 INFO L225 Difference]: With dead ends: 110 [2020-09-25 09:59:48,735 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 09:59:48,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 09:59:48,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 09:59:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 09:59:48,748 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 09:59:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:48,749 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 09:59:48,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 09:59:48,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 09:59:48,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:48,752 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:48,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:59:48,752 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:48,753 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 09:59:48,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:48,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502406872] [2020-09-25 09:59:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:53,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:59:53,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:59:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:53,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:53,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:53,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:53,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:53,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3462 [2020-09-25 09:59:57,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:59:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:57,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:57,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 09:59:57,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:57,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:57,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:57,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:57,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:57,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:57,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:57,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:57,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:57,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 09:59:57,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502406872] [2020-09-25 09:59:57,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:57,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:57,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818343027] [2020-09-25 09:59:57,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:57,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:57,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:57,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:57,461 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 09:59:57,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:57,567 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2020-09-25 09:59:57,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:57,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 09:59:57,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:57,570 INFO L225 Difference]: With dead ends: 66 [2020-09-25 09:59:57,570 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 09:59:57,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 09:59:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 09:59:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 09:59:57,582 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 09:59:57,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:57,582 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 09:59:57,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 09:59:57,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 09:59:57,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:57,586 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:57,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:59:57,586 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:57,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:57,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 09:59:57,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:57,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918962357] [2020-09-25 09:59:57,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 10:00:02,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:00:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:02,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:00:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:02,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:02,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:02,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:02,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:02,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:03,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 10:00:07,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:07,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:00:07,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:00:07,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:07,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:07,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:07,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:07,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:07,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:07,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:07,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:07,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:07,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 10:00:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:00:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:07,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:07,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:07,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:07,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:07,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:07,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:07,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:07,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 10:00:07,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918962357] [2020-09-25 10:00:07,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:07,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:00:07,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817171951] [2020-09-25 10:00:07,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:00:07,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:07,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:00:07,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:00:07,933 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 8 states. [2020-09-25 10:00:08,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:08,089 INFO L93 Difference]: Finished difference Result 82 states and 112 transitions. [2020-09-25 10:00:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:00:08,089 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-25 10:00:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:08,092 INFO L225 Difference]: With dead ends: 82 [2020-09-25 10:00:08,092 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 10:00:08,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 10:00:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2020-09-25 10:00:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 10:00:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2020-09-25 10:00:08,106 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 67 [2020-09-25 10:00:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:08,107 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2020-09-25 10:00:08,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:00:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2020-09-25 10:00:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:00:08,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:08,110 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:08,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:00:08,110 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:08,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:08,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 10:00:08,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:08,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578137845] [2020-09-25 10:00:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:08,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:13,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:00:13,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 10:00:13,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:00:13,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:13,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 10:00:13,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:13,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:13,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:13,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:13,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:13,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:13,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:13,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:13,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:13,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 10:00:18,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 10:00:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:00:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:18,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 10:00:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:18,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:18,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:00:18,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 10:00:18,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:18,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 10:00:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:18,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:00:18,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:18,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:18,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:18,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:18,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 10:00:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:18,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:19,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:00:19,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:00:19,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-09-25 10:00:19,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:19,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:19,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:19,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:19,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:19,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:19,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:19,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:19,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:19,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:19,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:19,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:19,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:19,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:19,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:19,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:19,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:19,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 24 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 10:00:19,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578137845] [2020-09-25 10:00:19,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:19,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:00:19,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292860993] [2020-09-25 10:00:19,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:00:19,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:19,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:00:19,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:00:19,087 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand 10 states. [2020-09-25 10:00:19,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:19,447 INFO L93 Difference]: Finished difference Result 167 states and 273 transitions. [2020-09-25 10:00:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:00:19,448 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 10:00:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:19,451 INFO L225 Difference]: With dead ends: 167 [2020-09-25 10:00:19,451 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 10:00:19,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:00:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 10:00:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 91. [2020-09-25 10:00:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-25 10:00:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-09-25 10:00:19,472 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 71 [2020-09-25 10:00:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:19,473 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-09-25 10:00:19,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:00:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-09-25 10:00:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 10:00:19,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:19,475 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:19,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:00:19,476 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:19,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 10:00:19,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:19,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371224579] [2020-09-25 10:00:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:24,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 10:00:24,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 10:00:24,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 10:00:24,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:24,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 10:00:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:24,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:24,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:24,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:24,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 10:00:29,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 10:00:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:00:29,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:00:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:00:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:29,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:30,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:00:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1352 [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 10:00:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:31,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:31,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:31,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:31,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:31,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:31,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:31,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 10:00:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:32,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:32,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:00:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-09-25 10:00:32,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:32,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:32,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:32,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:32,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:32,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:32,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 10:00:32,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:32,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:32,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:32,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:32,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:32,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:32,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:32,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:32,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:32,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:32,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:32,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:32,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:32,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:32,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:32,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:32,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:32,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:32,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:32,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:32,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:32,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:32,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 57 proven. 30 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-09-25 10:00:32,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371224579] [2020-09-25 10:00:32,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:32,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 10:00:32,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892128097] [2020-09-25 10:00:32,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 10:00:32,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:32,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 10:00:32,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 10:00:32,451 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 14 states. [2020-09-25 10:00:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:32,740 INFO L93 Difference]: Finished difference Result 196 states and 309 transitions. [2020-09-25 10:00:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:00:32,742 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2020-09-25 10:00:32,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:32,744 INFO L225 Difference]: With dead ends: 196 [2020-09-25 10:00:32,744 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 10:00:32,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:00:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 10:00:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-09-25 10:00:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 10:00:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 137 transitions. [2020-09-25 10:00:32,762 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 137 transitions. Word has length 103 [2020-09-25 10:00:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:32,762 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 137 transitions. [2020-09-25 10:00:32,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 10:00:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 137 transitions. [2020-09-25 10:00:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 10:00:32,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:32,765 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:32,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:00:32,765 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 1 times [2020-09-25 10:00:32,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:32,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488940699] [2020-09-25 10:00:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:33,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:36,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-25 10:00:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 10:00:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:37,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:37,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:37,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:37,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:37,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:37,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:37,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:37,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:37,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:38,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:38,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:39,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:40,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking...