/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:43:54,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:43:54,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:43:54,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:43:54,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:43:54,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:43:54,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:43:54,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:43:54,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:43:54,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:43:54,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:43:54,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:43:54,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:43:54,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:43:54,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:43:54,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:43:54,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:43:54,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:43:54,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:43:54,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:43:54,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:43:54,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:43:54,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:43:54,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:43:54,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:43:54,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:43:54,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:43:54,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:43:54,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:43:54,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:43:54,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:43:54,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:43:54,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:43:54,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:43:54,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:43:54,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:43:54,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:43:54,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:43:54,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:43:54,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:43:54,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:43:54,149 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 [2020-10-12 19:43:54,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:43:54,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:43:54,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:43:54,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:43:54,172 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:43:54,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:43:54,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:43:54,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:43:54,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:43:54,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:43:54,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:43:54,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:43:54,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:43:54,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:43:54,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:43:54,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:43:54,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:43:54,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:43:54,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:43:54,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:43:54,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:43:54,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:43:54,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:43:54,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:43:54,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:43:54,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:43:54,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:43:54,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:43:54,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:43:54,177 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:43:54,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:43:54,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:43:54,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:43:54,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:43:54,486 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:43:54,487 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:43:54,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0a22e1f/9d1b7d3812064c57adcce51a305c0a07/FLAG1cb478ca8 [2020-10-12 19:43:55,304 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:43:55,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:43:55,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0a22e1f/9d1b7d3812064c57adcce51a305c0a07/FLAG1cb478ca8 [2020-10-12 19:43:55,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0a22e1f/9d1b7d3812064c57adcce51a305c0a07 [2020-10-12 19:43:55,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:43:55,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:43:55,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:43:55,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:43:55,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:43:55,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:55" (1/1) ... [2020-10-12 19:43:55,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389f1ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:55, skipping insertion in model container [2020-10-12 19:43:55,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:55" (1/1) ... [2020-10-12 19:43:55,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:43:55,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:43:57,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:43:57,059 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:43:57,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:43:57,658 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:43:57,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57 WrapperNode [2020-10-12 19:43:57,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:43:57,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:43:57,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:43:57,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:43:57,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (1/1) ... [2020-10-12 19:43:57,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:43:57,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:43:57,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:43:57,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:43:57,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (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 [2020-10-12 19:43:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:43:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:43:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:43:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:43:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:43:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:43:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:43:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:43:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:43:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:43:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:43:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:43:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:43:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:43:58,050 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:43:58,051 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:43:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:43:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 19:43:58,052 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:43:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:43:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:43:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:43:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:44:01,458 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:44:01,458 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:44:01,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:44:01 BoogieIcfgContainer [2020-10-12 19:44:01,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:44:01,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:44:01,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:44:01,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:44:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:43:55" (1/3) ... [2020-10-12 19:44:01,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b35fab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:44:01, skipping insertion in model container [2020-10-12 19:44:01,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:57" (2/3) ... [2020-10-12 19:44:01,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b35fab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:44:01, skipping insertion in model container [2020-10-12 19:44:01,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:44:01" (3/3) ... [2020-10-12 19:44:01,477 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:44:01,488 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:44:01,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-12 19:44:01,511 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-12 19:44:01,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:44:01,542 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:44:01,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:44:01,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:44:01,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:44:01,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:44:01,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:44:01,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:44:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states. [2020-10-12 19:44:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:44:01,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:01,606 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] [2020-10-12 19:44:01,607 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash 817114819, now seen corresponding path program 1 times [2020-10-12 19:44:01,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:01,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703063497] [2020-10-12 19:44:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:04,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:05,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:07,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:07,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:44:07,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:44:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 19:44:07,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:44:07,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:44:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:44:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:44:08,634 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:44:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:08,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 19:44:08,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:08,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:44:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:08,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703063497] [2020-10-12 19:44:08,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:08,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:44:08,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448731321] [2020-10-12 19:44:08,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:44:08,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:44:08,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:44:08,773 INFO L87 Difference]: Start difference. First operand 1136 states. Second operand 7 states. [2020-10-12 19:44:10,019 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:44:24,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:24,429 INFO L93 Difference]: Finished difference Result 3439 states and 5749 transitions. [2020-10-12 19:44:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:44:24,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:44:24,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:24,479 INFO L225 Difference]: With dead ends: 3439 [2020-10-12 19:44:24,479 INFO L226 Difference]: Without dead ends: 2744 [2020-10-12 19:44:24,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:44:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2020-10-12 19:44:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 1818. [2020-10-12 19:44:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1818 states. [2020-10-12 19:44:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2451 transitions. [2020-10-12 19:44:24,666 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2451 transitions. Word has length 90 [2020-10-12 19:44:24,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:24,667 INFO L479 AbstractCegarLoop]: Abstraction has 1818 states and 2451 transitions. [2020-10-12 19:44:24,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:44:24,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2451 transitions. [2020-10-12 19:44:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:24,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:24,674 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] [2020-10-12 19:44:24,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:44:24,675 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:24,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:24,675 INFO L82 PathProgramCache]: Analyzing trace with hash -89586992, now seen corresponding path program 1 times [2020-10-12 19:44:24,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:24,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675387334] [2020-10-12 19:44:24,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:24,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:25,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:25,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:26,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:26,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:29,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:44:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 19:44:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:44:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 19:44:29,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 19:44:29,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-12 19:44:30,979 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:44:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:30,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:31,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:31,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:31,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:44:31,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:31,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675387334] [2020-10-12 19:44:31,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:31,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:44:31,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598780063] [2020-10-12 19:44:31,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:44:31,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:31,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:44:31,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:44:31,062 INFO L87 Difference]: Start difference. First operand 1818 states and 2451 transitions. Second operand 7 states. [2020-10-12 19:44:32,073 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:44:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:40,149 INFO L93 Difference]: Finished difference Result 4638 states and 6401 transitions. [2020-10-12 19:44:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:44:40,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:44:40,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:40,172 INFO L225 Difference]: With dead ends: 4638 [2020-10-12 19:44:40,172 INFO L226 Difference]: Without dead ends: 3657 [2020-10-12 19:44:40,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:44:40,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3657 states. [2020-10-12 19:44:40,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3657 to 2187. [2020-10-12 19:44:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2020-10-12 19:44:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3007 transitions. [2020-10-12 19:44:40,268 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3007 transitions. Word has length 91 [2020-10-12 19:44:40,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:40,268 INFO L479 AbstractCegarLoop]: Abstraction has 2187 states and 3007 transitions. [2020-10-12 19:44:40,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:44:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3007 transitions. [2020-10-12 19:44:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:44:40,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:40,274 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] [2020-10-12 19:44:40,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:44:40,274 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:40,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:40,275 INFO L82 PathProgramCache]: Analyzing trace with hash 174389306, now seen corresponding path program 1 times [2020-10-12 19:44:40,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:40,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567874979] [2020-10-12 19:44:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:40,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:40,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:40,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:41,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:45,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:45,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:44:45,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:44:45,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-12 19:44:45,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:45,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:44:45,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:44:45,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 19:44:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:44:46,465 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:44:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:46,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:46,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:46,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:46,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 19:44:46,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:44:46,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567874979] [2020-10-12 19:44:46,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:46,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:44:46,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587049724] [2020-10-12 19:44:46,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:44:46,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:46,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:44:46,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:44:46,557 INFO L87 Difference]: Start difference. First operand 2187 states and 3007 transitions. Second operand 7 states. [2020-10-12 19:44:47,966 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:44:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:54,158 INFO L93 Difference]: Finished difference Result 6515 states and 9195 transitions. [2020-10-12 19:44:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:44:54,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:44:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:54,185 INFO L225 Difference]: With dead ends: 6515 [2020-10-12 19:44:54,185 INFO L226 Difference]: Without dead ends: 5642 [2020-10-12 19:44:54,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:44:54,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5642 states. [2020-10-12 19:44:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5642 to 3100. [2020-10-12 19:44:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3100 states. [2020-10-12 19:44:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3100 states to 3100 states and 4372 transitions. [2020-10-12 19:44:54,343 INFO L78 Accepts]: Start accepts. Automaton has 3100 states and 4372 transitions. Word has length 91 [2020-10-12 19:44:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:54,344 INFO L479 AbstractCegarLoop]: Abstraction has 3100 states and 4372 transitions. [2020-10-12 19:44:54,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:44:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3100 states and 4372 transitions. [2020-10-12 19:44:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:44:54,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:54,360 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] [2020-10-12 19:44:54,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:44:54,361 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:54,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:54,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1452659445, now seen corresponding path program 1 times [2020-10-12 19:44:54,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:54,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465812234] [2020-10-12 19:44:54,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:54,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:54,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:54,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:55,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:56,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:57,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:59,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:59,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:44:59,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:44:59,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-12 19:44:59,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:44:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:59,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 19:44:59,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:45:00,851 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:45:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:00,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 19:45:00,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:00,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465812234] [2020-10-12 19:45:00,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:00,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:45:00,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391591173] [2020-10-12 19:45:00,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:45:00,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:00,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:45:00,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:45:00,951 INFO L87 Difference]: Start difference. First operand 3100 states and 4372 transitions. Second operand 10 states. [2020-10-12 19:45:02,082 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 500 [2020-10-12 19:45:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:12,325 INFO L93 Difference]: Finished difference Result 7461 states and 10508 transitions. [2020-10-12 19:45:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:45:12,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-10-12 19:45:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:12,356 INFO L225 Difference]: With dead ends: 7461 [2020-10-12 19:45:12,356 INFO L226 Difference]: Without dead ends: 6395 [2020-10-12 19:45:12,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:45:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6395 states. [2020-10-12 19:45:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6395 to 3100. [2020-10-12 19:45:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3100 states. [2020-10-12 19:45:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3100 states to 3100 states and 4370 transitions. [2020-10-12 19:45:12,560 INFO L78 Accepts]: Start accepts. Automaton has 3100 states and 4370 transitions. Word has length 92 [2020-10-12 19:45:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:12,561 INFO L479 AbstractCegarLoop]: Abstraction has 3100 states and 4370 transitions. [2020-10-12 19:45:12,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:45:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3100 states and 4370 transitions. [2020-10-12 19:45:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:45:12,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:12,575 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] [2020-10-12 19:45:12,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:45:12,575 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:12,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:12,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1455110969, now seen corresponding path program 1 times [2020-10-12 19:45:12,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:12,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779318119] [2020-10-12 19:45:12,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:12,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:12,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:12,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:13,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:14,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:14,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:15,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:17,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 19:45:17,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:18,949 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:45:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:18,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:18,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:18,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:18,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:45:18,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:18,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:19,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779318119] [2020-10-12 19:45:19,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:19,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:45:19,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265309675] [2020-10-12 19:45:19,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:45:19,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:19,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:45:19,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:45:19,057 INFO L87 Difference]: Start difference. First operand 3100 states and 4370 transitions. Second operand 12 states. [2020-10-12 19:45:21,399 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 510 DAG size of output: 503 [2020-10-12 19:45:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:37,349 INFO L93 Difference]: Finished difference Result 13316 states and 19438 transitions. [2020-10-12 19:45:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:45:37,350 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-10-12 19:45:37,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:37,396 INFO L225 Difference]: With dead ends: 13316 [2020-10-12 19:45:37,396 INFO L226 Difference]: Without dead ends: 11200 [2020-10-12 19:45:37,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:45:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2020-10-12 19:45:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 5474. [2020-10-12 19:45:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5474 states. [2020-10-12 19:45:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 7997 transitions. [2020-10-12 19:45:37,814 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 7997 transitions. Word has length 92 [2020-10-12 19:45:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:37,815 INFO L479 AbstractCegarLoop]: Abstraction has 5474 states and 7997 transitions. [2020-10-12 19:45:37,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:45:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 7997 transitions. [2020-10-12 19:45:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:45:37,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:37,823 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] [2020-10-12 19:45:37,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:45:37,824 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash 254644458, now seen corresponding path program 1 times [2020-10-12 19:45:37,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:37,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528026385] [2020-10-12 19:45:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:37,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:38,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:38,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:39,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:42,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:45:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:45:42,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:45:42,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:44,063 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:45:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:45:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:44,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:45:44,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:45:44,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:45:44,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:45:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:45:44,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528026385] [2020-10-12 19:45:44,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:45:44,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:45:44,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466720640] [2020-10-12 19:45:44,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:45:44,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:45:44,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:45:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:45:44,154 INFO L87 Difference]: Start difference. First operand 5474 states and 7997 transitions. Second operand 11 states. [2020-10-12 19:45:45,257 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 498 [2020-10-12 19:45:56,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:45:56,005 INFO L93 Difference]: Finished difference Result 19606 states and 29039 transitions. [2020-10-12 19:45:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 19:45:56,006 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-10-12 19:45:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:45:56,041 INFO L225 Difference]: With dead ends: 19606 [2020-10-12 19:45:56,041 INFO L226 Difference]: Without dead ends: 16667 [2020-10-12 19:45:56,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:45:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16667 states. [2020-10-12 19:45:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16667 to 5516. [2020-10-12 19:45:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5516 states. [2020-10-12 19:45:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 8044 transitions. [2020-10-12 19:45:56,648 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 8044 transitions. Word has length 93 [2020-10-12 19:45:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:45:56,649 INFO L479 AbstractCegarLoop]: Abstraction has 5516 states and 8044 transitions. [2020-10-12 19:45:56,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:45:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 8044 transitions. [2020-10-12 19:45:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:45:56,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:45:56,657 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] [2020-10-12 19:45:56,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:45:56,658 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:45:56,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:45:56,658 INFO L82 PathProgramCache]: Analyzing trace with hash 559331758, now seen corresponding path program 1 times [2020-10-12 19:45:56,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:45:56,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610864010] [2020-10-12 19:45:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:45:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:45:56,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:56,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:57,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:58,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:58,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:45:59,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:01,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:46:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,076 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:46:03,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:03,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:46:03,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:03,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610864010] [2020-10-12 19:46:03,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:03,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:46:03,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032438787] [2020-10-12 19:46:03,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:46:03,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:03,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:46:03,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:46:03,183 INFO L87 Difference]: Start difference. First operand 5516 states and 8044 transitions. Second operand 10 states. [2020-10-12 19:46:05,456 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 523 DAG size of output: 520 [2020-10-12 19:46:20,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:46:20,539 INFO L93 Difference]: Finished difference Result 17412 states and 25855 transitions. [2020-10-12 19:46:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 19:46:20,540 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-12 19:46:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:46:20,571 INFO L225 Difference]: With dead ends: 17412 [2020-10-12 19:46:20,571 INFO L226 Difference]: Without dead ends: 15351 [2020-10-12 19:46:20,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:46:20,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15351 states. [2020-10-12 19:46:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15351 to 5548. [2020-10-12 19:46:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5548 states. [2020-10-12 19:46:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 8086 transitions. [2020-10-12 19:46:21,318 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 8086 transitions. Word has length 93 [2020-10-12 19:46:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:46:21,318 INFO L479 AbstractCegarLoop]: Abstraction has 5548 states and 8086 transitions. [2020-10-12 19:46:21,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:46:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 8086 transitions. [2020-10-12 19:46:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:46:21,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:46:21,325 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] [2020-10-12 19:46:21,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:46:21,325 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:46:21,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:46:21,326 INFO L82 PathProgramCache]: Analyzing trace with hash 252192934, now seen corresponding path program 1 times [2020-10-12 19:46:21,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:46:21,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358237497] [2020-10-12 19:46:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:46:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:21,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:23,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:23,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:24,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:25,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:26,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:26,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:46:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:46:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:27,622 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:46:27,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:27,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:27,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:27,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358237497] [2020-10-12 19:46:27,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:27,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:46:27,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189105670] [2020-10-12 19:46:27,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:46:27,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:27,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:46:27,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:46:27,697 INFO L87 Difference]: Start difference. First operand 5548 states and 8086 transitions. Second operand 12 states. [2020-10-12 19:46:30,105 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 512 DAG size of output: 511 [2020-10-12 19:46:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:46:43,005 INFO L93 Difference]: Finished difference Result 15503 states and 23085 transitions. [2020-10-12 19:46:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:46:43,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-12 19:46:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:46:43,026 INFO L225 Difference]: With dead ends: 15503 [2020-10-12 19:46:43,026 INFO L226 Difference]: Without dead ends: 13533 [2020-10-12 19:46:43,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:46:43,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13533 states. [2020-10-12 19:46:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13533 to 5550. [2020-10-12 19:46:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5550 states. [2020-10-12 19:46:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 8088 transitions. [2020-10-12 19:46:43,729 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 8088 transitions. Word has length 93 [2020-10-12 19:46:43,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:46:43,729 INFO L479 AbstractCegarLoop]: Abstraction has 5550 states and 8088 transitions. [2020-10-12 19:46:43,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:46:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 8088 transitions. [2020-10-12 19:46:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:46:43,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:46:43,733 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] [2020-10-12 19:46:43,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:46:43,734 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:46:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:46:43,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1918708118, now seen corresponding path program 1 times [2020-10-12 19:46:43,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:46:43,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555169716] [2020-10-12 19:46:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:46:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:43,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:43,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:43,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:44,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:45,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:45,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:46,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:46,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:48,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:46:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 19:46:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:50,178 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:46:50,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:46:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:46:50,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:46:50,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:46:50,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:46:50,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:46:50,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:46:50,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:46:50,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:46:50,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:46:50,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:46:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:46:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:46:50,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555169716] [2020-10-12 19:46:50,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:46:50,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:46:50,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859156377] [2020-10-12 19:46:50,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:46:50,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:46:50,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:46:50,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:46:50,256 INFO L87 Difference]: Start difference. First operand 5550 states and 8088 transitions. Second operand 11 states. [2020-10-12 19:46:52,705 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 523 DAG size of output: 513 [2020-10-12 19:47:04,557 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-10-12 19:47:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:47:05,666 INFO L93 Difference]: Finished difference Result 15599 states and 23384 transitions. [2020-10-12 19:47:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:47:05,666 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-10-12 19:47:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:47:05,679 INFO L225 Difference]: With dead ends: 15599 [2020-10-12 19:47:05,679 INFO L226 Difference]: Without dead ends: 13187 [2020-10-12 19:47:05,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:47:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13187 states. [2020-10-12 19:47:06,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13187 to 5108. [2020-10-12 19:47:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5108 states. [2020-10-12 19:47:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 7447 transitions. [2020-10-12 19:47:06,240 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 7447 transitions. Word has length 93 [2020-10-12 19:47:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:47:06,241 INFO L479 AbstractCegarLoop]: Abstraction has 5108 states and 7447 transitions. [2020-10-12 19:47:06,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:47:06,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 7447 transitions. [2020-10-12 19:47:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 19:47:06,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:47:06,245 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] [2020-10-12 19:47:06,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:47:06,245 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:47:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:47:06,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1871988888, now seen corresponding path program 1 times [2020-10-12 19:47:06,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:47:06,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732496246] [2020-10-12 19:47:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:47:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:06,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:11,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:47:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:47:11,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:47:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:12,573 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:47:12,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:47:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:12,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:47:12,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:47:12,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:47:12,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:47:12,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732496246] [2020-10-12 19:47:12,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:47:12,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:47:12,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703160663] [2020-10-12 19:47:12,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:47:12,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:47:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:47:12,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:47:12,690 INFO L87 Difference]: Start difference. First operand 5108 states and 7447 transitions. Second operand 12 states. [2020-10-12 19:47:13,893 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-10-12 19:47:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:47:21,761 INFO L93 Difference]: Finished difference Result 9792 states and 14352 transitions. [2020-10-12 19:47:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:47:21,761 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-12 19:47:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:47:21,768 INFO L225 Difference]: With dead ends: 9792 [2020-10-12 19:47:21,769 INFO L226 Difference]: Without dead ends: 7731 [2020-10-12 19:47:21,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:47:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7731 states. [2020-10-12 19:47:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7731 to 4443. [2020-10-12 19:47:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4443 states. [2020-10-12 19:47:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6473 transitions. [2020-10-12 19:47:22,249 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6473 transitions. Word has length 94 [2020-10-12 19:47:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:47:22,249 INFO L479 AbstractCegarLoop]: Abstraction has 4443 states and 6473 transitions. [2020-10-12 19:47:22,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:47:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6473 transitions. [2020-10-12 19:47:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 19:47:22,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:47:22,252 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] [2020-10-12 19:47:22,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:47:22,252 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, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:47:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:47:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash 384792554, now seen corresponding path program 1 times [2020-10-12 19:47:22,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:47:22,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1437416605] [2020-10-12 19:47:22,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:47:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:22,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:22,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:22,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:22,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:23,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:23,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:26,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:27,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:27,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 19:47:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:28,470 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:47:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:47:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:47:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:47:28,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:47:28,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:47:28,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:47:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:47:28,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1437416605] [2020-10-12 19:47:28,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:47:28,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:47:28,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470248292] [2020-10-12 19:47:28,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:47:28,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:47:28,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:47:28,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:47:28,546 INFO L87 Difference]: Start difference. First operand 4443 states and 6473 transitions. Second operand 10 states. [2020-10-12 19:47:29,601 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 492