/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:19:45,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:19:45,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:19:45,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:19:45,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:19:45,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:19:45,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:19:45,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:19:45,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:19:45,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:19:45,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:19:45,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:19:45,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:19:45,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:19:45,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:19:45,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:19:45,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:19:45,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:19:45,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:19:45,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:19:45,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:19:45,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:19:45,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:19:45,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:19:45,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:19:45,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:19:45,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:19:45,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:19:45,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:19:45,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:19:45,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:19:45,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:19:45,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:19:45,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:19:45,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:19:45,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:19:45,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:19:45,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:19:45,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:19:45,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:19:45,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:19:45,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:19:45,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:19:45,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:19:45,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:19:45,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:19:45,192 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:19:45,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:19:45,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:19:45,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:19:45,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:19:45,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:19:45,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:19:45,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:19:45,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:19:45,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:19:45,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:19:45,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:19:45,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:19:45,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:19:45,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:19:45,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:19:45,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:19:45,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:19:45,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:19:45,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:19:45,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:19:45,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:19:45,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:19:45,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:19:45,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:19:45,197 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:19:45,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:19:45,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:19:45,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:19:45,690 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:19:45,690 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:19:45,692 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c [2020-09-24 19:19:45,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3951c8f6/7cfb183bf2314a1e8e0cf19b651aefbb/FLAG58b44299d [2020-09-24 19:19:46,309 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:19:46,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_5-1.c [2020-09-24 19:19:46,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3951c8f6/7cfb183bf2314a1e8e0cf19b651aefbb/FLAG58b44299d [2020-09-24 19:19:46,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d3951c8f6/7cfb183bf2314a1e8e0cf19b651aefbb [2020-09-24 19:19:46,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:19:46,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:19:46,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:46,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:19:46,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:19:46,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:46" (1/1) ... [2020-09-24 19:19:46,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b5e0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:46, skipping insertion in model container [2020-09-24 19:19:46,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:46" (1/1) ... [2020-09-24 19:19:46,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:19:46,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:19:47,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:47,006 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:19:47,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:47,040 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:19:47,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47 WrapperNode [2020-09-24 19:19:47,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:47,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:19:47,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:19:47,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:19:47,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... [2020-09-24 19:19:47,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:19:47,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:19:47,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:19:47,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:19:47,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:19:47,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:19:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:19:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 19:19:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 19:19:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:19:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:19:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:19:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 19:19:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 19:19:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:19:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:19:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:19:47,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:19:47,460 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 19:19:47,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:47 BoogieIcfgContainer [2020-09-24 19:19:47,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:19:47,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:19:47,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:19:47,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:19:47,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:19:46" (1/3) ... [2020-09-24 19:19:47,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5803e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:47, skipping insertion in model container [2020-09-24 19:19:47,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:47" (2/3) ... [2020-09-24 19:19:47,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5803e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:47, skipping insertion in model container [2020-09-24 19:19:47,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:47" (3/3) ... [2020-09-24 19:19:47,475 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_5-1.c [2020-09-24 19:19:47,488 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:19:47,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:19:47,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:19:47,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:19:47,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:19:47,568 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:19:47,569 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:19:47,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:19:47,569 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:19:47,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:19:47,570 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:19:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 19:19:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 19:19:47,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:47,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:47,606 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:47,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 19:19:47,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:47,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635986946] [2020-09-24 19:19:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:47,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:47,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:47,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:19:47,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:47,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 19:19:47,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:19:47,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:19:47,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:47,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:47,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:47,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:47,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:47,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:47,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:47,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:47,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:47,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:19:47,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:47,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635986946] [2020-09-24 19:19:47,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:47,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:47,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678445816] [2020-09-24 19:19:47,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:47,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:47,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:47,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:47,970 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 19:19:48,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:48,099 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 19:19:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:19:48,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 19:19:48,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:48,116 INFO L225 Difference]: With dead ends: 58 [2020-09-24 19:19:48,116 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 19:19:48,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:48,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 19:19:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 19:19:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:48,187 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 19:19:48,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:48,188 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:48,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:48,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 19:19:48,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:48,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:48,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:19:48,192 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:48,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:48,192 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 19:19:48,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:48,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921253511] [2020-09-24 19:19:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:19:48,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 19:19:48,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:48,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:48,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:48,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:48,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 19:19:48,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:48,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:48,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921253511] [2020-09-24 19:19:48,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:48,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:48,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960068924] [2020-09-24 19:19:48,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:48,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:48,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:48,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:48,416 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 19:19:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:48,486 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 19:19:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:19:48,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 19:19:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:48,489 INFO L225 Difference]: With dead ends: 50 [2020-09-24 19:19:48,489 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 19:19:48,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 19:19:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 19:19:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:48,501 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 19:19:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:48,501 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:48,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 19:19:48,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:48,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:48,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:19:48,504 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:48,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 19:19:48,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:48,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672057313] [2020-09-24 19:19:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:48,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:48,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 19:19:49,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-24 19:19:49,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:19:49,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:49,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:49,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:49,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:49,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:19:49,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:19:49,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:19:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:49,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:49,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:19:49,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:49,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:19:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:49,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:49,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:19:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:19:49,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672057313] [2020-09-24 19:19:49,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:49,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:19:49,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214063053] [2020-09-24 19:19:49,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:19:49,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:49,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:19:49,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:49,207 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 6 states. [2020-09-24 19:19:49,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:49,284 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-09-24 19:19:49,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:49,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-24 19:19:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:49,286 INFO L225 Difference]: With dead ends: 82 [2020-09-24 19:19:49,286 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 19:19:49,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:49,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 19:19:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 19:19:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 19:19:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-09-24 19:19:49,298 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-09-24 19:19:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:49,299 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-09-24 19:19:49,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:19:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-09-24 19:19:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 19:19:49,301 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:49,301 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:49,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:19:49,302 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:49,302 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-24 19:19:49,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:49,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122748114] [2020-09-24 19:19:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 19:19:49,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:49,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-24 19:19:49,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:49,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:19:49,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:49,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:49,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:49,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:49,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:49,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:49,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:49,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:49,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 19:19:49,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:50,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:50,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:19:50,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:50,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:50,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:50,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:50,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:50,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:19:50,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:19:50,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122748114] [2020-09-24 19:19:50,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:50,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:19:50,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443921577] [2020-09-24 19:19:50,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:19:50,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:50,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:19:50,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:50,082 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-09-24 19:19:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:50,205 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-09-24 19:19:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:19:50,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 19:19:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:50,208 INFO L225 Difference]: With dead ends: 56 [2020-09-24 19:19:50,208 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 19:19:50,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:50,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 19:19:50,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-09-24 19:19:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 19:19:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-09-24 19:19:50,218 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 34 [2020-09-24 19:19:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:50,219 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-09-24 19:19:50,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:19:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-09-24 19:19:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 19:19:50,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:50,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:50,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:19:50,222 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:50,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:50,222 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-24 19:19:50,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:50,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279050742] [2020-09-24 19:19:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:19:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-24 19:19:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:19:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:19:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:50,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:50,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:50,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:50,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 19:19:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 19:19:50,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:19:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:19:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:50,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:50,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:50,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:19:50,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:50,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:50,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:19:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 19:19:50,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:50,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:50,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:19:50,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279050742] [2020-09-24 19:19:50,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:50,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:19:50,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962389056] [2020-09-24 19:19:50,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:19:50,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:50,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:19:50,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:50,919 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 6 states. [2020-09-24 19:19:51,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:51,017 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2020-09-24 19:19:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:51,018 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 19:19:51,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:51,019 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:19:51,020 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 19:19:51,021 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 [2020-09-24 19:19:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 19:19:51,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-09-24 19:19:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 19:19:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2020-09-24 19:19:51,032 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 35 [2020-09-24 19:19:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:51,032 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2020-09-24 19:19:51,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:19:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2020-09-24 19:19:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 19:19:51,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:51,035 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:51,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:19:51,036 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:51,036 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-24 19:19:51,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:51,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270428587] [2020-09-24 19:19:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:51,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:52,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 19:19:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:19:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:19:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 19:19:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:52,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:52,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:52,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:52,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:19:52,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:52,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:19:53,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:19:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:19:53,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 19:19:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:19:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 19:19:53,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:19:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:19:53,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:19:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:53,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:53,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:19:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:53,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 19:19:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:53,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:53,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:53,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:19:53,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:19:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 19:19:53,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270428587] [2020-09-24 19:19:53,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:53,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:19:53,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581834463] [2020-09-24 19:19:53,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:19:53,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:53,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:19:53,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:53,217 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 6 states. [2020-09-24 19:19:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:53,290 INFO L93 Difference]: Finished difference Result 100 states and 125 transitions. [2020-09-24 19:19:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:19:53,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-09-24 19:19:53,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:53,292 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:19:53,292 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 19:19:53,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 19:19:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 19:19:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:19:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-24 19:19:53,302 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 51 [2020-09-24 19:19:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:53,303 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-24 19:19:53,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:19:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-24 19:19:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 19:19:53,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:53,306 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:53,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:19:53,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:53,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 19:19:53,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:53,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377522965] [2020-09-24 19:19:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:53,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:53,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:54,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 19:19:54,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:54,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:19:54,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:54,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 19:19:54,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:54,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:54,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:54,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:54,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:54,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:54,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:19:55,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:55,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:19:55,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:55,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:19:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:55,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:55,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:19:55,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:55,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:55,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:19:55,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:55,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:55,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:55,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:55,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:19:55,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:55,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:55,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:55,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:55,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:19:55,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 19:19:55,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377522965] [2020-09-24 19:19:55,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:55,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:19:55,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333348091] [2020-09-24 19:19:55,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:19:55,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:55,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:19:55,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:19:55,515 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 7 states. [2020-09-24 19:19:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:55,658 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2020-09-24 19:19:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:19:55,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-24 19:19:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:55,661 INFO L225 Difference]: With dead ends: 78 [2020-09-24 19:19:55,661 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 19:19:55,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:19:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 19:19:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-09-24 19:19:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-24 19:19:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2020-09-24 19:19:55,671 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 52 [2020-09-24 19:19:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:55,671 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2020-09-24 19:19:55,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:19:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2020-09-24 19:19:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 19:19:55,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:55,674 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:55,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:19:55,674 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:55,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:55,675 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-24 19:19:55,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:55,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640151521] [2020-09-24 19:19:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:55,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 19:19:56,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:19:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:19:56,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:19:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:19:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:56,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:56,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:56,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:56,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:56,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:19:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:19:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:19:57,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:19:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:19:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:19:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:57,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:57,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:57,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:58,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:58,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-24 19:19:58,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:19:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:19:58,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:58,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:19:58,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:19:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:19:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:19:58,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:58,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:19:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:19:58,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:19:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:19:58,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:19:58,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:58,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:19:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:58,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:19:58,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:58,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:58,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:19:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:58,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:58,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:19:58,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:19:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 19:19:58,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640151521] [2020-09-24 19:19:58,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:19:58,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:19:58,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958135894] [2020-09-24 19:19:58,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:19:58,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:58,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:19:58,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:19:58,615 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 10 states. [2020-09-24 19:19:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:58,832 INFO L93 Difference]: Finished difference Result 124 states and 163 transitions. [2020-09-24 19:19:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:19:58,833 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-24 19:19:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:58,835 INFO L225 Difference]: With dead ends: 124 [2020-09-24 19:19:58,835 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 19:19:58,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:19:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 19:19:58,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 19:19:58,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 19:19:58,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2020-09-24 19:19:58,846 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 69 [2020-09-24 19:19:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:58,847 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2020-09-24 19:19:58,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:19:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2020-09-24 19:19:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 19:19:58,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:58,849 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:58,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:19:58,849 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:58,850 INFO L82 PathProgramCache]: Analyzing trace with hash -271039366, now seen corresponding path program 1 times [2020-09-24 19:19:58,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:58,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915400901] [2020-09-24 19:19:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:58,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:58,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-24 19:19:59,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:19:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:19:59,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:19:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:19:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:19:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:59,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:19:59,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 19:20:00,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-24 19:20:00,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:00,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:00,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:00,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:20:01,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-09-24 19:20:01,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:01,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:01,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:01,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:01,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 19:20:01,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:01,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:01,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:01,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:01,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:20:01,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:01,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:01,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:01,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:02,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:20:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:03,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:03,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:03,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:03,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:03,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:03,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:03,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:04,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:04,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:04,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:04,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:04,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:20:04,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:04,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:04,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:04,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:20:04,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:04,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:04,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:04,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 61 proven. 38 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-09-24 19:20:04,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915400901] [2020-09-24 19:20:04,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:04,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:04,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692386003] [2020-09-24 19:20:04,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:04,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:04,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:04,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:04,236 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 8 states. [2020-09-24 19:20:04,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:04,357 INFO L93 Difference]: Finished difference Result 148 states and 193 transitions. [2020-09-24 19:20:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:04,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-09-24 19:20:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:04,359 INFO L225 Difference]: With dead ends: 148 [2020-09-24 19:20:04,359 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 19:20:04,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:20:04,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 19:20:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2020-09-24 19:20:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 19:20:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2020-09-24 19:20:04,384 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 121 [2020-09-24 19:20:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:04,384 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2020-09-24 19:20:04,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2020-09-24 19:20:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 19:20:04,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:04,391 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:04,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:20:04,392 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:04,392 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 1 times [2020-09-24 19:20:04,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:04,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012201445] [2020-09-24 19:20:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 19:20:05,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:05,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 19:20:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:05,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:05,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:05,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:05,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:06,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:06,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 19:20:06,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:06,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:07,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:07,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:07,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:07,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:20:07,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:07,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:07,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:07,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:07,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:07,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:20:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:07,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:07,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:07,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:07,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:07,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:07,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:07,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 19:20:07,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012201445] [2020-09-24 19:20:07,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:07,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:07,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795164738] [2020-09-24 19:20:07,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:07,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:07,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:07,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:07,798 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 8 states. [2020-09-24 19:20:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:07,999 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2020-09-24 19:20:07,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:20:08,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2020-09-24 19:20:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:08,003 INFO L225 Difference]: With dead ends: 106 [2020-09-24 19:20:08,003 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 19:20:08,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 19:20:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 88. [2020-09-24 19:20:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-24 19:20:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2020-09-24 19:20:08,028 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 105 [2020-09-24 19:20:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:08,030 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2020-09-24 19:20:08,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2020-09-24 19:20:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 19:20:08,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:08,033 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:08,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:20:08,034 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:08,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1039385064, now seen corresponding path program 2 times [2020-09-24 19:20:08,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:08,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490117202] [2020-09-24 19:20:08,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:08,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 19:20:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:09,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:09,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 19:20:10,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:10,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:11,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:11,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:11,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:20:11,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:11,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:11,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:11,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:11,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:11,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:11,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:11,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 19:20:11,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:11,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:20:11,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:11,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:11,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-24 19:20:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:11,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:20:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 19:20:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:11,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:11,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:11,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:11,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 19:20:11,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490117202] [2020-09-24 19:20:11,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:11,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:20:11,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061963625] [2020-09-24 19:20:11,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:20:11,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:11,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:20:11,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:20:11,977 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand 10 states. [2020-09-24 19:20:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:12,213 INFO L93 Difference]: Finished difference Result 189 states and 295 transitions. [2020-09-24 19:20:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:20:12,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-09-24 19:20:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:12,217 INFO L225 Difference]: With dead ends: 189 [2020-09-24 19:20:12,218 INFO L226 Difference]: Without dead ends: 107 [2020-09-24 19:20:12,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:20:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-09-24 19:20:12,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2020-09-24 19:20:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-24 19:20:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 135 transitions. [2020-09-24 19:20:12,230 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 135 transitions. Word has length 104 [2020-09-24 19:20:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:12,231 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 135 transitions. [2020-09-24 19:20:12,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:20:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 135 transitions. [2020-09-24 19:20:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 19:20:12,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:12,234 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:12,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:20:12,234 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1362270955, now seen corresponding path program 3 times [2020-09-24 19:20:12,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:12,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568617809] [2020-09-24 19:20:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:13,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 19:20:13,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:13,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:13,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-24 19:20:13,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:13,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:13,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:13,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:13,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:13,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:13,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:20:14,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-24 19:20:14,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-24 19:20:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:14,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 19:20:15,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:15,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:15,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:15,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:15,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:15,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:15,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:16,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:16,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:17,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:17,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:17,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:17,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:17,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:17,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:17,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:17,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:17,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:20:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:20:17,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-24 19:20:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:17,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:17,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:17,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:17,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:17,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,687 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 112 proven. 56 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2020-09-24 19:20:17,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568617809] [2020-09-24 19:20:17,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:17,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:17,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106255150] [2020-09-24 19:20:17,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:17,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:17,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:17,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:17,689 INFO L87 Difference]: Start difference. First operand 99 states and 135 transitions. Second operand 8 states. [2020-09-24 19:20:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:17,866 INFO L93 Difference]: Finished difference Result 189 states and 282 transitions. [2020-09-24 19:20:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:17,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-24 19:20:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:17,869 INFO L225 Difference]: With dead ends: 189 [2020-09-24 19:20:17,869 INFO L226 Difference]: Without dead ends: 99 [2020-09-24 19:20:17,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:20:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-24 19:20:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-09-24 19:20:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-24 19:20:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2020-09-24 19:20:17,884 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 175 [2020-09-24 19:20:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:17,885 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2020-09-24 19:20:17,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2020-09-24 19:20:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:20:17,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:17,888 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:17,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:20:17,888 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:17,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:17,889 INFO L82 PathProgramCache]: Analyzing trace with hash 646126520, now seen corresponding path program 4 times [2020-09-24 19:20:17,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:17,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591041459] [2020-09-24 19:20:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:20:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-24 19:20:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-24 19:20:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:18,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 19:20:19,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 19:20:19,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:19,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 19:20:20,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:20,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:20:20,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:20,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 19:20:20,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:20,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:21,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:20:21,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:21,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:21,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:21,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:21,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:21,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:21,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:21,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:21,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:21,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:21,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:21,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:21,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:21,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:21,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:21,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:21,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:20:22,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:22,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:22,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:23,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:23,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:20:23,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:23,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:23,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:23,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:23,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:23,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:20:23,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:23,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:20:23,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:23,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 19:20:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:23,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:20:23,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 19:20:23,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:23,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:23,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:23,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 135 proven. 38 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2020-09-24 19:20:23,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591041459] [2020-09-24 19:20:23,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:23,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:23,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889332289] [2020-09-24 19:20:23,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:23,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:23,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:23,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:23,449 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand 9 states. [2020-09-24 19:20:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:23,617 INFO L93 Difference]: Finished difference Result 197 states and 289 transitions. [2020-09-24 19:20:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:20:23,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-24 19:20:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:23,621 INFO L225 Difference]: With dead ends: 197 [2020-09-24 19:20:23,622 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 19:20:23,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:20:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 19:20:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-09-24 19:20:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 19:20:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 138 transitions. [2020-09-24 19:20:23,648 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 138 transitions. Word has length 158 [2020-09-24 19:20:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:23,650 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 138 transitions. [2020-09-24 19:20:23,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2020-09-24 19:20:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 19:20:23,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:23,655 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:23,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:20:23,656 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:23,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:23,656 INFO L82 PathProgramCache]: Analyzing trace with hash 235403762, now seen corresponding path program 5 times [2020-09-24 19:20:23,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:23,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680496372] [2020-09-24 19:20:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 19:20:24,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:24,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 19:20:24,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:24,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:24,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:24,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:24,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:25,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:20:25,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:20:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:25,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:26,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:26,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:26,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:20:26,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:26,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:26,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:26,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:26,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:26,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:26,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:26,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:26,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:26,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:26,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:26,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:27,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:27,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:20:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:27,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:27,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:28,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:28,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:28,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 147 proven. 101 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-09-24 19:20:28,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680496372] [2020-09-24 19:20:28,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:28,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 19:20:28,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024358926] [2020-09-24 19:20:28,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:20:28,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:28,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:20:28,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:20:28,793 INFO L87 Difference]: Start difference. First operand 105 states and 138 transitions. Second operand 12 states. [2020-09-24 19:20:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:29,215 INFO L93 Difference]: Finished difference Result 240 states and 356 transitions. [2020-09-24 19:20:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:20:29,215 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2020-09-24 19:20:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:29,219 INFO L225 Difference]: With dead ends: 240 [2020-09-24 19:20:29,219 INFO L226 Difference]: Without dead ends: 144 [2020-09-24 19:20:29,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:20:29,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-24 19:20:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 129. [2020-09-24 19:20:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-09-24 19:20:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 179 transitions. [2020-09-24 19:20:29,244 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 179 transitions. Word has length 175 [2020-09-24 19:20:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:29,245 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 179 transitions. [2020-09-24 19:20:29,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:20:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 179 transitions. [2020-09-24 19:20:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:20:29,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:29,250 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:29,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:20:29,251 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:29,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1447807672, now seen corresponding path program 6 times [2020-09-24 19:20:29,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:29,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855014302] [2020-09-24 19:20:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-24 19:20:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:30,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:30,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 19:20:31,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 19:20:31,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:31,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-09-24 19:20:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:31,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:31,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:20:31,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:31,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:31,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 19:20:32,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:32,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 19:20:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:33,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:33,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:33,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:33,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:33,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:20:33,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:33,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:33,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:33,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 153 proven. 5 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-09-24 19:20:33,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855014302] [2020-09-24 19:20:33,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:33,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:33,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007941942] [2020-09-24 19:20:33,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:33,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:33,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:33,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:33,672 INFO L87 Difference]: Start difference. First operand 129 states and 179 transitions. Second operand 9 states. [2020-09-24 19:20:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:33,898 INFO L93 Difference]: Finished difference Result 274 states and 426 transitions. [2020-09-24 19:20:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:20:33,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-24 19:20:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:33,904 INFO L225 Difference]: With dead ends: 274 [2020-09-24 19:20:33,904 INFO L226 Difference]: Without dead ends: 151 [2020-09-24 19:20:33,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:20:33,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-24 19:20:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2020-09-24 19:20:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-24 19:20:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2020-09-24 19:20:33,934 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 193 transitions. Word has length 158 [2020-09-24 19:20:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:33,936 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 193 transitions. [2020-09-24 19:20:33,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 193 transitions. [2020-09-24 19:20:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-24 19:20:33,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:33,943 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:33,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 19:20:33,943 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:33,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 7 times [2020-09-24 19:20:33,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:33,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334908104] [2020-09-24 19:20:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:34,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 19:20:34,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:34,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:20:34,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:34,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 19:20:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-24 19:20:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-24 19:20:34,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:35,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:35,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:35,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:35,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:35,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:35,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:20:36,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:36,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 19:20:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 19:20:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 19:20:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking...