/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=0.3 --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_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:14:37,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:14:37,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:14:37,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:14:37,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:14:37,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:14:37,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:14:37,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:14:37,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:14:37,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:14:37,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:14:37,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:14:37,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:14:37,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:14:37,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:14:37,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:14:37,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:14:37,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:14:37,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:14:37,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:14:37,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:14:37,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:14:37,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:14:37,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:14:37,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:14:37,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:14:37,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:14:37,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:14:37,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:14:37,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:14:37,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:14:37,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:14:37,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:14:37,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:14:37,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:14:37,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:14:37,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:14:37,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:14:37,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:14:37,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:14:37,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:14:37,376 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 12:14:37,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:14:37,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:14:37,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:14:37,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:14:37,405 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:14:37,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:14:37,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:14:37,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:14:37,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:14:37,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:14:37,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:14:37,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:14:37,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:14:37,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:14:37,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:14:37,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:14:37,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:14:37,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:14:37,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:14:37,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:14:37,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:14:37,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:14:37,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:14:37,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:14:37,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:14:37,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:14:37,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:14:37,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:14:37,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:14:37,410 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:14:37,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:14:37,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:14:37,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:14:37,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:14:37,896 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:14:37,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-25 12:14:37,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14f48064a/1037709fdc4c47a483a0c981d157bcec/FLAG535caf925 [2020-09-25 12:14:38,547 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:14:38,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-25 12:14:38,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14f48064a/1037709fdc4c47a483a0c981d157bcec/FLAG535caf925 [2020-09-25 12:14:38,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14f48064a/1037709fdc4c47a483a0c981d157bcec [2020-09-25 12:14:38,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:14:38,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:14:38,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:38,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:14:38,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:14:38,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2719192c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38, skipping insertion in model container [2020-09-25 12:14:38,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:14:38,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:14:39,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:39,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:14:39,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:39,219 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:14:39,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39 WrapperNode [2020-09-25 12:14:39,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:39,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:14:39,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:14:39,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:14:39,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (1/1) ... [2020-09-25 12:14:39,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:14:39,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:14:39,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:14:39,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:14:39,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (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 12:14:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:14:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:14:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 12:14:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:14:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:14:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:14:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 12:14:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:14:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:14:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:14:39,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:14:39,630 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:14:39,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:39 BoogieIcfgContainer [2020-09-25 12:14:39,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:14:39,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:14:39,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:14:39,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:14:39,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:14:38" (1/3) ... [2020-09-25 12:14:39,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179206b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:39, skipping insertion in model container [2020-09-25 12:14:39,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:39" (2/3) ... [2020-09-25 12:14:39,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179206b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:39, skipping insertion in model container [2020-09-25 12:14:39,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:39" (3/3) ... [2020-09-25 12:14:39,646 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-1.c [2020-09-25 12:14:39,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:14:39,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:14:39,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:14:39,731 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:14:39,731 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:14:39,731 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:14:39,732 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:14:39,732 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:14:39,732 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:14:39,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:14:39,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:14:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 12:14:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 12:14:39,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:39,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:39,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:39,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:39,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 12:14:39,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:39,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395377784] [2020-09-25 12:14:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:39,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:14:39,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 12:14:39,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:39,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:39,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:14:39,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:40,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:40,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:40,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:40,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:14:40,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:40,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:40,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,140 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 12:14:40,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395377784] [2020-09-25 12:14:40,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:40,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:40,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898868741] [2020-09-25 12:14:40,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:40,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:40,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:40,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:40,168 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 12:14:40,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:40,279 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 12:14:40,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:14:40,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 12:14:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:40,295 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:14:40,296 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 12:14:40,300 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 12:14:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 12:14:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 12:14:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:40,354 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 12:14:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:40,355 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:40,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 12:14:40,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:40,358 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 12:14:40,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:14:40,359 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:40,359 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 12:14:40,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:40,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739180771] [2020-09-25 12:14:40,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 12:14:40,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 12:14:40,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:40,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:40,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:40,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:40,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:40,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 12:14:40,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,552 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 12:14:40,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739180771] [2020-09-25 12:14:40,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:40,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:40,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103483493] [2020-09-25 12:14:40,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:40,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:40,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:40,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:40,557 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 12:14:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:40,625 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 12:14:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:14:40,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 12:14:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:40,627 INFO L225 Difference]: With dead ends: 36 [2020-09-25 12:14:40,628 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 12:14:40,629 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 12:14:40,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 12:14:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 12:14:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:40,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:40,638 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 12:14:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:40,638 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:40,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 12:14:40,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:40,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:40,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:14:40,641 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:40,641 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 12:14:40,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:40,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692958300] [2020-09-25 12:14:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 12:14:41,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-25 12:14:41,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:14:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:41,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:41,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:41,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:41,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:41,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:41,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 12:14:41,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:14:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:14:41,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:14:41,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692958300] [2020-09-25 12:14:41,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:41,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:41,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011731519] [2020-09-25 12:14:41,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:41,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:41,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:41,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:41,675 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-25 12:14:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:41,761 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2020-09-25 12:14:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:41,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 12:14:41,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:41,763 INFO L225 Difference]: With dead ends: 62 [2020-09-25 12:14:41,764 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 12:14:41,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:41,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 12:14:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-09-25 12:14:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 12:14:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 12:14:41,775 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 33 [2020-09-25 12:14:41,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:41,775 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 12:14:41,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 12:14:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 12:14:41,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:41,778 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:41,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:14:41,778 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:41,779 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 1 times [2020-09-25 12:14:41,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:41,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358704512] [2020-09-25 12:14:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 12:14:42,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:42,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-25 12:14:42,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:14:42,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:42,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:14:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 12:14:42,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:14:42,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:42,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:14:42,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:42,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:42,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:14:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:42,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:14:42,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358704512] [2020-09-25 12:14:42,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:42,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:42,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998997215] [2020-09-25 12:14:42,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:42,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:42,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:42,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:42,527 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-09-25 12:14:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:42,631 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 12:14:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:42,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-25 12:14:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:42,634 INFO L225 Difference]: With dead ends: 50 [2020-09-25 12:14:42,634 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 12:14:42,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 12:14:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-09-25 12:14:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 12:14:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 12:14:42,644 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 34 [2020-09-25 12:14:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:42,645 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 12:14:42,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 12:14:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 12:14:42,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:42,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:42,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:14:42,648 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:42,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:42,648 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 12:14:42,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:42,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142341790] [2020-09-25 12:14:42,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:43,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 12:14:43,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 12:14:43,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:43,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:43,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:14:43,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:43,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:43,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:43,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:43,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:43,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:43,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:43,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:43,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:14:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 12:14:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:43,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:14:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:43,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:43,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:14:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:43,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:43,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:43,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:14:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:43,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:43,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:14:43,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142341790] [2020-09-25 12:14:43,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:43,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:14:43,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058432979] [2020-09-25 12:14:43,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:14:43,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:43,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:14:43,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:43,722 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 6 states. [2020-09-25 12:14:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:43,867 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2020-09-25 12:14:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:43,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 12:14:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:43,880 INFO L225 Difference]: With dead ends: 94 [2020-09-25 12:14:43,880 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 12:14:43,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 12:14:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 12:14:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:14:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 12:14:43,910 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 35 [2020-09-25 12:14:43,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:43,910 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 12:14:43,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:14:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 12:14:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 12:14:43,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:43,915 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:43,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:14:43,916 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:43,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:43,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 2 times [2020-09-25 12:14:43,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:43,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195000293] [2020-09-25 12:14:43,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:43,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:48,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:48,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:14:48,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:14:48,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:48,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 12:14:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:48,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:48,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:48,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:48,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:48,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:48,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:48,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:14:52,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3645 [2020-09-25 12:14:52,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:52,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:14:52,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:52,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 12:14:52,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:52,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:52,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:52,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:14:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:52,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:52,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:52,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:14:52,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:52,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:14:52,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195000293] [2020-09-25 12:14:52,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:52,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:52,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883662504] [2020-09-25 12:14:52,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:52,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:52,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:52,896 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 7 states. [2020-09-25 12:14:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:53,037 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-09-25 12:14:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:53,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 12:14:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:53,041 INFO L225 Difference]: With dead ends: 68 [2020-09-25 12:14:53,041 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 12:14:53,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 12:14:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 12:14:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:14:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 12:14:53,065 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 51 [2020-09-25 12:14:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:53,066 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 12:14:53,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 12:14:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:14:53,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:53,075 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:53,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:14:53,075 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:53,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:53,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 3 times [2020-09-25 12:14:53,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:53,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799914782] [2020-09-25 12:14:53,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:14:58,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 12:14:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:14:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:58,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:14:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:14:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:58,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:58,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:58,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:58,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:58,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:58,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:03,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:15:03,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 12:15:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:15:03,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:03,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:03,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:03,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 12:15:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:03,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:03,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:15:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 12:15:03,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:03,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:03,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:03,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:03,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:03,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:15:03,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:03,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:03,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:03,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:03,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:03,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:03,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:15:03,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:03,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:03,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:15:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:03,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:05,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:15:05,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:15:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1635 [2020-09-25 12:15:05,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:05,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:05,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:15:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:15:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:05,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:05,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:15:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 12:15:05,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:05,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:15:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:05,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:05,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:05,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:05,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:15:05,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:05,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:05,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:05,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:05,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:05,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:05,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:05,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:05,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:05,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:05,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:05,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:15:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:05,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:05,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:05,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 59 proven. 65 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-25 12:15:05,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799914782] [2020-09-25 12:15:05,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:05,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:15:05,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266159898] [2020-09-25 12:15:05,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:15:05,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:05,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:15:05,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:15:05,278 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 10 states. [2020-09-25 12:15:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:05,562 INFO L93 Difference]: Finished difference Result 118 states and 175 transitions. [2020-09-25 12:15:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:15:05,563 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 12:15:05,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:05,565 INFO L225 Difference]: With dead ends: 118 [2020-09-25 12:15:05,565 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 12:15:05,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:15:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 12:15:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2020-09-25 12:15:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 12:15:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2020-09-25 12:15:05,581 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 85 [2020-09-25 12:15:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:05,581 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2020-09-25 12:15:05,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:15:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2020-09-25 12:15:05,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 12:15:05,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:05,586 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:05,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:15:05,587 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:05,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 12:15:05,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:05,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762419047] [2020-09-25 12:15:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:10,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 12:15:10,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 12:15:10,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:15:10,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:10,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:10,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:15:10,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:15:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 12:15:10,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:10,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:10,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:10,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:10,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:12,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 12:15:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 12:15:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:15:15,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:15:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 12:15:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:15:15,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:15,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:15:15,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:15,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:15:15,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:15,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:15,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:15,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:15,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:15,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:15,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:15,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:15,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:15,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:15:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 12:15:18,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:15:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2381 [2020-09-25 12:15:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:15:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:15:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:19,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:15:19,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1453 [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:15:19,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:19,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:15:19,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:19,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:19,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:19,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:19,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:19,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:19,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:15:19,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:15:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:19,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:15:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:19,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:15:19,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:15:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:19,814 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 217 proven. 10 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-09-25 12:15:19,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762419047] [2020-09-25 12:15:19,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:19,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:15:19,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354166047] [2020-09-25 12:15:19,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:15:19,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:19,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:15:19,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:15:19,817 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand 7 states. [2020-09-25 12:15:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:19,954 INFO L93 Difference]: Finished difference Result 110 states and 140 transitions. [2020-09-25 12:15:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:15:19,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2020-09-25 12:15:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:19,956 INFO L225 Difference]: With dead ends: 110 [2020-09-25 12:15:19,957 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 12:15:19,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:15:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 12:15:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2020-09-25 12:15:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 12:15:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2020-09-25 12:15:19,965 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 123 [2020-09-25 12:15:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:19,966 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2020-09-25 12:15:19,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:15:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-09-25 12:15:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 12:15:19,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:19,968 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:19,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:15:19,968 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:19,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:19,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1885389560, now seen corresponding path program 5 times [2020-09-25 12:15:19,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:19,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217425567] [2020-09-25 12:15:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-25 12:15:24,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 12:15:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 12:15:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:24,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:25,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:25,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:25,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:30,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 12:15:30,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 12:15:30,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:15:30,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:30,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:15:30,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:30,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 12:15:30,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:30,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:30,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:32,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1955 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:15:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:32,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:15:32,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:32,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:32,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:15:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:15:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:32,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 54 proven. 98 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2020-09-25 12:15:32,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217425567] [2020-09-25 12:15:32,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:32,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:15:32,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555968327] [2020-09-25 12:15:32,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:15:32,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:32,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:15:32,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:15:32,195 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 8 states. [2020-09-25 12:15:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:32,372 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2020-09-25 12:15:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:15:32,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2020-09-25 12:15:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:32,374 INFO L225 Difference]: With dead ends: 73 [2020-09-25 12:15:32,374 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 12:15:32,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:15:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 12:15:32,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-09-25 12:15:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 12:15:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2020-09-25 12:15:32,390 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 105 [2020-09-25 12:15:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:32,391 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2020-09-25 12:15:32,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:15:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-09-25 12:15:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 12:15:32,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:32,396 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:32,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:15:32,396 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:32,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:32,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1001388386, now seen corresponding path program 6 times [2020-09-25 12:15:32,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:32,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075602801] [2020-09-25 12:15:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking...