/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:50:46,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:50:46,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:50:46,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:50:46,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:50:46,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:50:46,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:50:46,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:50:46,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:50:46,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:50:46,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:50:46,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:50:46,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:50:46,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:50:46,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:50:46,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:50:46,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:50:46,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:50:46,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:50:46,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:50:46,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:50:46,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:50:46,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:50:46,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:50:46,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:50:46,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:50:46,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:50:46,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:50:46,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:50:46,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:50:46,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:50:46,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:50:46,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:50:46,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:50:46,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:50:46,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:50:46,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:50:46,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:50:46,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:50:46,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:50:46,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:50:46,657 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 21:50:46,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:50:46,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:50:46,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:50:46,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:50:46,684 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:50:46,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:50:46,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:50:46,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:50:46,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:50:46,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:50:46,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:50:46,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:50:46,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:50:46,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:50:46,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:50:46,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:50:46,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:50:46,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:50:46,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:50:46,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:50:46,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:50:46,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:50:46,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:50:46,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:50:46,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:50:46,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:50:46,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:50:46,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:50:46,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:50:46,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:50:47,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:50:47,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:50:47,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:50:47,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:50:47,196 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:50:47,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 21:50:47,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9934b9e51/d35b03a83e3145cbbfe4f50648f0e22f/FLAG85fb05bc6 [2020-09-24 21:50:47,816 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:50:47,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 21:50:47,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9934b9e51/d35b03a83e3145cbbfe4f50648f0e22f/FLAG85fb05bc6 [2020-09-24 21:50:48,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9934b9e51/d35b03a83e3145cbbfe4f50648f0e22f [2020-09-24 21:50:48,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:50:48,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:50:48,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:48,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:50:48,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:50:48,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ad355a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48, skipping insertion in model container [2020-09-24 21:50:48,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:50:48,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:50:48,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:48,496 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:50:48,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:50:48,567 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:50:48,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48 WrapperNode [2020-09-24 21:50:48,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:50:48,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:50:48,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:50:48,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:50:48,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (1/1) ... [2020-09-24 21:50:48,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:50:48,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:50:48,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:50:48,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:50:48,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (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 21:50:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:50:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:50:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:50:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:50:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:50:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:50:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:50:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:50:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:50:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:50:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:50:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:50:49,355 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:50:49,355 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:50:49,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:49 BoogieIcfgContainer [2020-09-24 21:50:49,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:50:49,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:50:49,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:50:49,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:50:49,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:50:48" (1/3) ... [2020-09-24 21:50:49,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110bbc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:49, skipping insertion in model container [2020-09-24 21:50:49,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:50:48" (2/3) ... [2020-09-24 21:50:49,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110bbc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:50:49, skipping insertion in model container [2020-09-24 21:50:49,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:50:49" (3/3) ... [2020-09-24 21:50:49,382 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 21:50:49,395 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:50:49,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-24 21:50:49,431 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-24 21:50:49,485 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:50:49,485 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:50:49,486 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:50:49,486 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:50:49,486 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:50:49,486 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:50:49,486 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:50:49,487 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:50:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-24 21:50:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 21:50:49,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:49,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:49,528 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:49,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:49,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-24 21:50:49,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:49,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149891255] [2020-09-24 21:50:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:49,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:50,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:50,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 21:50:50,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-09-24 21:50:50,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:50:50,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:50:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:50:50,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:50,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:50,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:50,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:50,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:50:50,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:50,199 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 21:50:50,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149891255] [2020-09-24 21:50:50,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:50,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:50,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001935896] [2020-09-24 21:50:50,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:50,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:50,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:50,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:50,227 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-24 21:50:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:51,012 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-24 21:50:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:50:51,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 21:50:51,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:51,031 INFO L225 Difference]: With dead ends: 290 [2020-09-24 21:50:51,032 INFO L226 Difference]: Without dead ends: 239 [2020-09-24 21:50:51,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:50:51,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-24 21:50:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-24 21:50:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 21:50:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-24 21:50:51,104 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-24 21:50:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:51,105 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-24 21:50:51,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:50:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-24 21:50:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 21:50:51,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:51,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:51,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:50:51,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:51,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-24 21:50:51,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:51,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046777141] [2020-09-24 21:50:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:51,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:51,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:50:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:50:51,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:50:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:50:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:50:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:51,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:51,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:51,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:51,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:50:51,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:51,384 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 21:50:51,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046777141] [2020-09-24 21:50:51,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:51,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:50:51,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498517417] [2020-09-24 21:50:51,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:50:51,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:51,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:50:51,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:50:51,389 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-24 21:50:51,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:51,646 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-24 21:50:51,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:50:51,647 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 21:50:51,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:51,650 INFO L225 Difference]: With dead ends: 187 [2020-09-24 21:50:51,650 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 21:50:51,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:50:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 21:50:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-24 21:50:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 21:50:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-24 21:50:51,665 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-24 21:50:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:51,666 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-24 21:50:51,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:50:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-24 21:50:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 21:50:51,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:51,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:51,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:50:51,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-24 21:50:51,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:51,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667528290] [2020-09-24 21:50:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:51,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:51,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:51,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 21:50:51,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:51,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 21:50:51,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:50:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:50:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:51,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:51,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:51,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:51,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:51,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:51,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:50:51,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:51,976 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 21:50:51,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667528290] [2020-09-24 21:50:51,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:51,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:51,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988717368] [2020-09-24 21:50:51,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:51,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:51,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:51,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:51,979 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-24 21:50:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:52,501 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-24 21:50:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:50:52,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 21:50:52,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:52,504 INFO L225 Difference]: With dead ends: 237 [2020-09-24 21:50:52,505 INFO L226 Difference]: Without dead ends: 235 [2020-09-24 21:50:52,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:50:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-24 21:50:52,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-24 21:50:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 21:50:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-24 21:50:52,519 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-24 21:50:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:52,519 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-24 21:50:52,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:50:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-24 21:50:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 21:50:52,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:52,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:52,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:50:52,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:52,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:52,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-24 21:50:52,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:52,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732003944] [2020-09-24 21:50:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:52,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:52,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:50:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-24 21:50:52,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:50:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:50:52,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:52,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:50:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:53,002 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 21:50:53,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732003944] [2020-09-24 21:50:53,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:53,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:53,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161967725] [2020-09-24 21:50:53,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:53,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:53,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:53,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:53,005 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-24 21:50:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:53,221 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-24 21:50:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:50:53,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-24 21:50:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:53,223 INFO L225 Difference]: With dead ends: 183 [2020-09-24 21:50:53,224 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 21:50:53,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:50:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 21:50:53,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-24 21:50:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 21:50:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-24 21:50:53,236 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-24 21:50:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:53,236 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-24 21:50:53,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:50:53,236 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-24 21:50:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 21:50:53,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:53,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:53,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:50:53,239 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-24 21:50:53,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:53,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37074582] [2020-09-24 21:50:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:53,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:53,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:53,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:53,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 21:50:53,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:50:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-24 21:50:53,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:50:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:50:53,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:53,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:53,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:50:53,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:53,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:53,722 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 21:50:53,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37074582] [2020-09-24 21:50:53,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:53,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:53,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829471379] [2020-09-24 21:50:53,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:53,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:53,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:53,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:53,725 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-24 21:50:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:54,415 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-24 21:50:54,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:50:54,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-24 21:50:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:54,418 INFO L225 Difference]: With dead ends: 305 [2020-09-24 21:50:54,418 INFO L226 Difference]: Without dead ends: 303 [2020-09-24 21:50:54,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:50:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-24 21:50:54,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-24 21:50:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-24 21:50:54,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-24 21:50:54,431 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-24 21:50:54,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:54,431 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-24 21:50:54,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:50:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-24 21:50:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 21:50:54,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:54,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:54,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:50:54,434 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:54,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-24 21:50:54,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:54,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652034933] [2020-09-24 21:50:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:54,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:54,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 21:50:54,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:50:54,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-24 21:50:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:50:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 21:50:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:55,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:55,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:55,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:55,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:55,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:50:55,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:55,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:55,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:55,020 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 21:50:55,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652034933] [2020-09-24 21:50:55,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:55,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:55,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831575159] [2020-09-24 21:50:55,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:55,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:55,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:55,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:55,023 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-24 21:50:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:50:56,041 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-24 21:50:56,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:50:56,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 21:50:56,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:50:56,047 INFO L225 Difference]: With dead ends: 471 [2020-09-24 21:50:56,047 INFO L226 Difference]: Without dead ends: 469 [2020-09-24 21:50:56,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:50:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-24 21:50:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-24 21:50:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 21:50:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 21:50:56,061 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 21:50:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:50:56,062 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 21:50:56,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:50:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 21:50:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 21:50:56,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:50:56,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:50:56,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:50:56,074 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:50:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:50:56,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-24 21:50:56,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:50:56,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960717848] [2020-09-24 21:50:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:50:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:56,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:56,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:56,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:59,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:59,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 21:50:59,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:50:59,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3771 [2020-09-24 21:50:59,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:50:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:50:59,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 21:50:59,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:50:59,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:50:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:50:59,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:50:59,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:50:59,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:50:59,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:50:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:50:59,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:50:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:50:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:50:59,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:50:59,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:50:59,962 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 21:50:59,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960717848] [2020-09-24 21:50:59,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:50:59,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:50:59,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056135403] [2020-09-24 21:50:59,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:50:59,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:50:59,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:50:59,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:50:59,965 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-24 21:51:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:00,496 INFO L93 Difference]: Finished difference Result 298 states and 304 transitions. [2020-09-24 21:51:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:51:00,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 21:51:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:00,500 INFO L225 Difference]: With dead ends: 298 [2020-09-24 21:51:00,500 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 21:51:00,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:51:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 21:51:00,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 207. [2020-09-24 21:51:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-24 21:51:00,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 212 transitions. [2020-09-24 21:51:00,512 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 212 transitions. Word has length 69 [2020-09-24 21:51:00,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:00,513 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 212 transitions. [2020-09-24 21:51:00,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:51:00,513 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 212 transitions. [2020-09-24 21:51:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 21:51:00,523 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:00,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:00,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:51:00,524 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:00,525 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-24 21:51:00,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:00,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968989178] [2020-09-24 21:51:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:00,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:02,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:02,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 21:51:02,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:51:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1581 [2020-09-24 21:51:02,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:02,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:51:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:51:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 21:51:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:02,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:02,214 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 21:51:02,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968989178] [2020-09-24 21:51:02,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:02,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:51:02,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563267730] [2020-09-24 21:51:02,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:51:02,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:02,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:51:02,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:51:02,217 INFO L87 Difference]: Start difference. First operand 207 states and 212 transitions. Second operand 7 states. [2020-09-24 21:51:02,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:02,695 INFO L93 Difference]: Finished difference Result 316 states and 322 transitions. [2020-09-24 21:51:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:51:02,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 21:51:02,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:02,697 INFO L225 Difference]: With dead ends: 316 [2020-09-24 21:51:02,697 INFO L226 Difference]: Without dead ends: 314 [2020-09-24 21:51:02,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:51:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-24 21:51:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 205. [2020-09-24 21:51:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 21:51:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2020-09-24 21:51:02,710 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 74 [2020-09-24 21:51:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:02,710 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2020-09-24 21:51:02,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:51:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2020-09-24 21:51:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 21:51:02,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:02,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:02,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 21:51:02,719 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:02,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1017357829, now seen corresponding path program 1 times [2020-09-24 21:51:02,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:02,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295234163] [2020-09-24 21:51:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:02,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:02,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:04,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:04,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 21:51:04,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:51:04,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1605 [2020-09-24 21:51:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:51:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:51:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 21:51:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:04,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:04,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:04,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:04,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:04,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:04,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:04,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:04,411 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 21:51:04,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295234163] [2020-09-24 21:51:04,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:04,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:51:04,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918041878] [2020-09-24 21:51:04,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:51:04,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:04,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:51:04,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:51:04,414 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 7 states. [2020-09-24 21:51:04,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:04,685 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2020-09-24 21:51:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:51:04,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 21:51:04,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:04,687 INFO L225 Difference]: With dead ends: 205 [2020-09-24 21:51:04,687 INFO L226 Difference]: Without dead ends: 203 [2020-09-24 21:51:04,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:51:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-24 21:51:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2020-09-24 21:51:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 21:51:04,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-24 21:51:04,695 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-24 21:51:04,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:04,695 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-24 21:51:04,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:51:04,696 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-24 21:51:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 21:51:04,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:04,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:04,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 21:51:04,699 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:04,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:04,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-24 21:51:04,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:04,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767587928] [2020-09-24 21:51:04,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:04,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:06,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:06,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 21:51:06,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:51:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1850 [2020-09-24 21:51:06,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:51:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:51:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 21:51:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:06,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:06,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:06,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:06,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:06,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:06,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:06,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:06,682 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 21:51:06,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767587928] [2020-09-24 21:51:06,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:06,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:51:06,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053575675] [2020-09-24 21:51:06,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:06,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:06,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:06,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:06,684 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states. [2020-09-24 21:51:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:07,109 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2020-09-24 21:51:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:51:07,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-24 21:51:07,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:07,111 INFO L225 Difference]: With dead ends: 204 [2020-09-24 21:51:07,111 INFO L226 Difference]: Without dead ends: 202 [2020-09-24 21:51:07,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:51:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-24 21:51:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2020-09-24 21:51:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 21:51:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-24 21:51:07,120 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-24 21:51:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:07,120 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-24 21:51:07,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-24 21:51:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 21:51:07,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:07,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:07,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 21:51:07,122 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:07,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:07,122 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-24 21:51:07,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:07,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249453044] [2020-09-24 21:51:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:07,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:07,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:07,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:07,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:08,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:12,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:12,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 21:51:12,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:51:12,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 21:51:12,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:12,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:51:12,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:51:12,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 21:51:12,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:51:12,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:12,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:12,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:12,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:12,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:12,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:12,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:12,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:12,229 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 21:51:12,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249453044] [2020-09-24 21:51:12,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:12,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:51:12,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532575964] [2020-09-24 21:51:12,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:51:12,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:12,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:51:12,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:51:12,232 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 7 states. [2020-09-24 21:51:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:12,762 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-24 21:51:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:51:12,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-09-24 21:51:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:12,764 INFO L225 Difference]: With dead ends: 288 [2020-09-24 21:51:12,765 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 21:51:12,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:51:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 21:51:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 212. [2020-09-24 21:51:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-24 21:51:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 217 transitions. [2020-09-24 21:51:12,779 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 217 transitions. Word has length 80 [2020-09-24 21:51:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:12,779 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 217 transitions. [2020-09-24 21:51:12,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:51:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 217 transitions. [2020-09-24 21:51:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 21:51:12,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:12,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:12,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 21:51:12,781 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-24 21:51:12,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:12,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492775240] [2020-09-24 21:51:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:12,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:12,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:17,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4731 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:51:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:51:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:17,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:17,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:17,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:17,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:17,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:17,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:17,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:17,601 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 21:51:17,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492775240] [2020-09-24 21:51:17,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:17,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:51:17,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917452021] [2020-09-24 21:51:17,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:51:17,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:17,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:51:17,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:51:17,604 INFO L87 Difference]: Start difference. First operand 212 states and 217 transitions. Second operand 7 states. [2020-09-24 21:51:17,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:17,970 INFO L93 Difference]: Finished difference Result 212 states and 217 transitions. [2020-09-24 21:51:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:51:17,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-24 21:51:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:17,973 INFO L225 Difference]: With dead ends: 212 [2020-09-24 21:51:17,974 INFO L226 Difference]: Without dead ends: 210 [2020-09-24 21:51:17,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:51:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-24 21:51:17,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 189. [2020-09-24 21:51:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 21:51:17,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-24 21:51:17,985 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 85 [2020-09-24 21:51:17,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:17,986 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-24 21:51:17,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:51:17,986 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-24 21:51:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 21:51:17,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:17,988 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:17,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 21:51:17,989 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:17,990 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-24 21:51:17,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:17,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503147854] [2020-09-24 21:51:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:18,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:18,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:20,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:51:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:51:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2058 [2020-09-24 21:51:20,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:51:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:51:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 21:51:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:20,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:20,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:20,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:20,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:20,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:20,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:51:20,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:20,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:51:20,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503147854] [2020-09-24 21:51:20,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:51:20,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:51:20,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553558863] [2020-09-24 21:51:20,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:20,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:20,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:20,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:20,175 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 8 states. [2020-09-24 21:51:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:20,808 INFO L93 Difference]: Finished difference Result 301 states and 307 transitions. [2020-09-24 21:51:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:51:20,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 21:51:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:20,810 INFO L225 Difference]: With dead ends: 301 [2020-09-24 21:51:20,810 INFO L226 Difference]: Without dead ends: 299 [2020-09-24 21:51:20,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:51:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-24 21:51:20,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182. [2020-09-24 21:51:20,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-24 21:51:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-24 21:51:20,821 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-24 21:51:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:20,822 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-24 21:51:20,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-24 21:51:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 21:51:20,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:20,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:51:20,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 21:51:20,824 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:20,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:20,825 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-24 21:51:20,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:20,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958450013] [2020-09-24 21:51:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:20,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:20,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:21,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 21:51:22,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:51:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2103 [2020-09-24 21:51:22,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:51:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:51:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 21:51:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:23,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:23,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:23,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:23,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:23,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:23,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:51:23,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958450013] [2020-09-24 21:51:23,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:51:23,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:51:23,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824749929] [2020-09-24 21:51:23,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:23,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:23,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:23,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:23,040 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 8 states. [2020-09-24 21:51:23,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:23,489 INFO L93 Difference]: Finished difference Result 193 states and 198 transitions. [2020-09-24 21:51:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:51:23,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 21:51:23,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:23,491 INFO L225 Difference]: With dead ends: 193 [2020-09-24 21:51:23,491 INFO L226 Difference]: Without dead ends: 191 [2020-09-24 21:51:23,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:51:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-24 21:51:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 169. [2020-09-24 21:51:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-24 21:51:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-24 21:51:23,500 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-24 21:51:23,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:23,500 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-24 21:51:23,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-24 21:51:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 21:51:23,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:23,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:23,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 21:51:23,503 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:23,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:23,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-24 21:51:23,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:23,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164826801] [2020-09-24 21:51:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:23,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:28,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 21:51:28,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:51:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4784 [2020-09-24 21:51:28,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:51:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:51:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 21:51:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:28,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:28,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:28,412 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 21:51:28,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164826801] [2020-09-24 21:51:28,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:28,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:51:28,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952553729] [2020-09-24 21:51:28,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:28,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:28,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:28,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:28,414 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 8 states. [2020-09-24 21:51:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:28,864 INFO L93 Difference]: Finished difference Result 180 states and 183 transitions. [2020-09-24 21:51:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:51:28,864 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-24 21:51:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:28,866 INFO L225 Difference]: With dead ends: 180 [2020-09-24 21:51:28,866 INFO L226 Difference]: Without dead ends: 178 [2020-09-24 21:51:28,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:51:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-24 21:51:28,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167. [2020-09-24 21:51:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 21:51:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-24 21:51:28,872 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-24 21:51:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:28,873 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-24 21:51:28,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-24 21:51:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 21:51:28,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:28,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:28,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 21:51:28,875 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:28,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:28,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-24 21:51:28,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:28,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60604256] [2020-09-24 21:51:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:28,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:29,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:29,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:29,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:30,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:51:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:51:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:51:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:33,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:33,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:33,958 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 21:51:33,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60604256] [2020-09-24 21:51:33,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:33,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:51:33,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269704987] [2020-09-24 21:51:33,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:33,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:33,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:33,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:33,960 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-24 21:51:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:34,545 INFO L93 Difference]: Finished difference Result 260 states and 264 transitions. [2020-09-24 21:51:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:51:34,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-24 21:51:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:34,548 INFO L225 Difference]: With dead ends: 260 [2020-09-24 21:51:34,548 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 21:51:34,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:51:34,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 21:51:34,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207. [2020-09-24 21:51:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-24 21:51:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 210 transitions. [2020-09-24 21:51:34,557 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 210 transitions. Word has length 99 [2020-09-24 21:51:34,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:34,557 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 210 transitions. [2020-09-24 21:51:34,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 210 transitions. [2020-09-24 21:51:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 21:51:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:34,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:34,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 21:51:34,559 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-24 21:51:34,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:34,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064848509] [2020-09-24 21:51:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:34,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:34,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:39,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:51:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 21:51:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:51:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:39,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:51:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:51:39,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:51:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:51:39,651 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 21:51:39,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064848509] [2020-09-24 21:51:39,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:51:39,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:51:39,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229563132] [2020-09-24 21:51:39,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:51:39,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:51:39,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:51:39,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:51:39,653 INFO L87 Difference]: Start difference. First operand 207 states and 210 transitions. Second operand 8 states. [2020-09-24 21:51:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:51:40,184 INFO L93 Difference]: Finished difference Result 270 states and 275 transitions. [2020-09-24 21:51:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:51:40,184 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-09-24 21:51:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:51:40,187 INFO L225 Difference]: With dead ends: 270 [2020-09-24 21:51:40,187 INFO L226 Difference]: Without dead ends: 268 [2020-09-24 21:51:40,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:51:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-24 21:51:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 165. [2020-09-24 21:51:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-24 21:51:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-24 21:51:40,194 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 104 [2020-09-24 21:51:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:51:40,194 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-24 21:51:40,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:51:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-24 21:51:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 21:51:40,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:51:40,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:51:40,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 21:51:40,196 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:51:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:51:40,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-24 21:51:40,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:51:40,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884569959] [2020-09-24 21:51:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:51:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:51:40,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:40,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:51:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking...