/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 18:37:32,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 18:37:32,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 18:37:32,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 18:37:32,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 18:37:32,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 18:37:32,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 18:37:32,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 18:37:32,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 18:37:32,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 18:37:32,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 18:37:32,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 18:37:32,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 18:37:32,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 18:37:32,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 18:37:32,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 18:37:32,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 18:37:32,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 18:37:32,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 18:37:32,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 18:37:32,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 18:37:32,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 18:37:32,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 18:37:32,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 18:37:32,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 18:37:32,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 18:37:32,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 18:37:32,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 18:37:32,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 18:37:32,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 18:37:32,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 18:37:32,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 18:37:32,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 18:37:32,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 18:37:32,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 18:37:32,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 18:37:32,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 18:37:32,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 18:37:32,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 18:37:32,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 18:37:32,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 18:37:32,179 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 [2020-10-28 18:37:32,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 18:37:32,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 18:37:32,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 18:37:32,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 18:37:32,213 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 18:37:32,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 18:37:32,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 18:37:32,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 18:37:32,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 18:37:32,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 18:37:32,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 18:37:32,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 18:37:32,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 18:37:32,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 18:37:32,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 18:37:32,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 18:37:32,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 18:37:32,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 18:37:32,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 18:37:32,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 18:37:32,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 18:37:32,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 18:37:32,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 18:37:32,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 18:37:32,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 18:37:32,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 18:37:32,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 18:37:32,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 18:37:32,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 18:37:32,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 18:37:32,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 18:37:32,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 18:37:32,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 18:37:32,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 18:37:32,726 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 18:37:32,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-28 18:37:32,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6c6b5c07/1345a9712b704fbea3c891ab240f309b/FLAG949b4454a [2020-10-28 18:37:33,757 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 18:37:33,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-28 18:37:33,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6c6b5c07/1345a9712b704fbea3c891ab240f309b/FLAG949b4454a [2020-10-28 18:37:33,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6c6b5c07/1345a9712b704fbea3c891ab240f309b [2020-10-28 18:37:33,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 18:37:33,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 18:37:33,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 18:37:33,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 18:37:33,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 18:37:33,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:37:33" (1/1) ... [2020-10-28 18:37:33,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38601628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:33, skipping insertion in model container [2020-10-28 18:37:33,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 06:37:33" (1/1) ... [2020-10-28 18:37:33,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 18:37:34,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 18:37:34,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:37:34,927 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 18:37:35,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 18:37:35,222 INFO L208 MainTranslator]: Completed translation [2020-10-28 18:37:35,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35 WrapperNode [2020-10-28 18:37:35,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 18:37:35,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 18:37:35,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 18:37:35,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 18:37:35,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (1/1) ... [2020-10-28 18:37:35,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 18:37:35,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 18:37:35,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 18:37:35,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 18:37:35,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (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 [2020-10-28 18:37:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 18:37:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 18:37:35,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 18:37:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 18:37:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 18:37:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 18:37:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 18:37:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 18:37:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 18:37:35,532 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-28 18:37:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 18:37:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 18:37:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 18:37:37,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 18:37:37,935 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 18:37:37,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:37:37 BoogieIcfgContainer [2020-10-28 18:37:37,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 18:37:37,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 18:37:37,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 18:37:37,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 18:37:37,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 06:37:33" (1/3) ... [2020-10-28 18:37:37,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c065cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:37:37, skipping insertion in model container [2020-10-28 18:37:37,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 06:37:35" (2/3) ... [2020-10-28 18:37:37,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c065cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 06:37:37, skipping insertion in model container [2020-10-28 18:37:37,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 06:37:37" (3/3) ... [2020-10-28 18:37:37,950 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-28 18:37:37,963 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 18:37:37,969 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 18:37:37,982 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 18:37:38,015 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 18:37:38,015 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 18:37:38,015 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 18:37:38,015 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 18:37:38,016 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 18:37:38,016 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 18:37:38,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 18:37:38,016 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 18:37:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states. [2020-10-28 18:37:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-28 18:37:38,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:37:38,071 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] [2020-10-28 18:37:38,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:37:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:37:38,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1615027478, now seen corresponding path program 1 times [2020-10-28 18:37:38,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:37:38,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207865254] [2020-10-28 18:37:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:37:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:37:38,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:39,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:39,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:39,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:39,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:41,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:41,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:43,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:37:43,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 18:37:43,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 18:37:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 18:37:43,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:37:43,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:37:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:37:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:37:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 18:37:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 18:37:44,694 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:37:44,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:37:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:37:44,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:44,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:37:44,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:37:44,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:37:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 18:37:44,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:37:44,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:37:44,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:37:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:37:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:37:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:37:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:37:44,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207865254] [2020-10-28 18:37:44,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:37:44,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 18:37:44,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902811085] [2020-10-28 18:37:44,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 18:37:44,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:37:44,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 18:37:44,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 18:37:44,828 INFO L87 Difference]: Start difference. First operand 638 states. Second operand 7 states. [2020-10-28 18:37:46,912 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 366 DAG size of output: 362 [2020-10-28 18:37:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:37:54,335 INFO L93 Difference]: Finished difference Result 1625 states and 2765 transitions. [2020-10-28 18:37:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 18:37:54,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-28 18:37:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:37:54,372 INFO L225 Difference]: With dead ends: 1625 [2020-10-28 18:37:54,372 INFO L226 Difference]: Without dead ends: 1261 [2020-10-28 18:37:54,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-10-28 18:37:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2020-10-28 18:37:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 620. [2020-10-28 18:37:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-28 18:37:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 785 transitions. [2020-10-28 18:37:54,505 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 785 transitions. Word has length 77 [2020-10-28 18:37:54,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:37:54,506 INFO L481 AbstractCegarLoop]: Abstraction has 620 states and 785 transitions. [2020-10-28 18:37:54,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 18:37:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 785 transitions. [2020-10-28 18:37:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-28 18:37:54,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:37:54,512 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] [2020-10-28 18:37:54,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 18:37:54,512 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:37:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:37:54,518 INFO L82 PathProgramCache]: Analyzing trace with hash 38189278, now seen corresponding path program 1 times [2020-10-28 18:37:54,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:37:54,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874087134] [2020-10-28 18:37:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:37:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:37:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:54,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:54,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:56,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:56,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:37:59,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:37:59,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 18:37:59,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 18:37:59,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 18:37:59,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:37:59,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:37:59,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:37:59,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:37:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 18:37:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 18:38:00,605 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:38:00,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:38:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:00,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:00,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:00,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:38:00,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:38:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 18:38:00,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:00,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:38:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:38:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:38:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:38:00,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874087134] [2020-10-28 18:38:00,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:38:00,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 18:38:00,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108024238] [2020-10-28 18:38:00,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 18:38:00,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:38:00,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 18:38:00,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 18:38:00,723 INFO L87 Difference]: Start difference. First operand 620 states and 785 transitions. Second operand 6 states. [2020-10-28 18:38:01,794 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-28 18:38:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:38:04,993 INFO L93 Difference]: Finished difference Result 948 states and 1247 transitions. [2020-10-28 18:38:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 18:38:04,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-28 18:38:04,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:38:05,000 INFO L225 Difference]: With dead ends: 948 [2020-10-28 18:38:05,001 INFO L226 Difference]: Without dead ends: 504 [2020-10-28 18:38:05,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 18:38:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-28 18:38:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-28 18:38:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-28 18:38:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 652 transitions. [2020-10-28 18:38:05,063 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 652 transitions. Word has length 77 [2020-10-28 18:38:05,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:38:05,066 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 652 transitions. [2020-10-28 18:38:05,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 18:38:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 652 transitions. [2020-10-28 18:38:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-28 18:38:05,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:38:05,073 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] [2020-10-28 18:38:05,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 18:38:05,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:38:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:38:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2055092833, now seen corresponding path program 1 times [2020-10-28 18:38:05,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:38:05,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719467233] [2020-10-28 18:38:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:38:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:05,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:05,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:07,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:07,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:07,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:08,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:09,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:10,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:10,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:10,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 18:38:10,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 18:38:10,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 18:38:10,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:10,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:38:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:38:10,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 18:38:10,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:11,248 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:38:11,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:38:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:11,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:11,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:11,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:38:11,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:38:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:38:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:38:11,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719467233] [2020-10-28 18:38:11,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:38:11,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:38:11,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613524909] [2020-10-28 18:38:11,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:38:11,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:38:11,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:38:11,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:38:11,328 INFO L87 Difference]: Start difference. First operand 504 states and 652 transitions. Second operand 8 states. [2020-10-28 18:38:13,302 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 366 DAG size of output: 362 [2020-10-28 18:38:18,494 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 367 DAG size of output: 360 [2020-10-28 18:38:19,964 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2020-10-28 18:38:22,820 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 366 DAG size of output: 359 [2020-10-28 18:38:23,731 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2020-10-28 18:38:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:38:23,963 INFO L93 Difference]: Finished difference Result 1771 states and 2503 transitions. [2020-10-28 18:38:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-28 18:38:23,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-28 18:38:23,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:38:23,976 INFO L225 Difference]: With dead ends: 1771 [2020-10-28 18:38:23,976 INFO L226 Difference]: Without dead ends: 1570 [2020-10-28 18:38:23,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-10-28 18:38:23,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2020-10-28 18:38:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 518. [2020-10-28 18:38:24,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-28 18:38:24,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 668 transitions. [2020-10-28 18:38:24,027 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 668 transitions. Word has length 78 [2020-10-28 18:38:24,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:38:24,027 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 668 transitions. [2020-10-28 18:38:24,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:38:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 668 transitions. [2020-10-28 18:38:24,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-28 18:38:24,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:38:24,030 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] [2020-10-28 18:38:24,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 18:38:24,030 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:38:24,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:38:24,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1185616310, now seen corresponding path program 1 times [2020-10-28 18:38:24,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:38:24,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218678243] [2020-10-28 18:38:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:38:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:24,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:24,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:24,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:26,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:26,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:29,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:29,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 18:38:29,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 18:38:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 18:38:29,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:29,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:38:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:38:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 18:38:29,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:30,225 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:38:30,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:38:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:30,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:30,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:38:30,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:38:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:38:30,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:38:30,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218678243] [2020-10-28 18:38:30,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:38:30,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:38:30,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379789072] [2020-10-28 18:38:30,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:38:30,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:38:30,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:38:30,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:38:30,306 INFO L87 Difference]: Start difference. First operand 518 states and 668 transitions. Second operand 8 states. [2020-10-28 18:38:31,367 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-28 18:38:35,432 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-28 18:38:36,852 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 356 [2020-10-28 18:38:38,821 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-28 18:38:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:38:38,995 INFO L93 Difference]: Finished difference Result 1555 states and 2140 transitions. [2020-10-28 18:38:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 18:38:38,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-28 18:38:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:38:39,005 INFO L225 Difference]: With dead ends: 1555 [2020-10-28 18:38:39,005 INFO L226 Difference]: Without dead ends: 1419 [2020-10-28 18:38:39,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-28 18:38:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-10-28 18:38:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 719. [2020-10-28 18:38:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-10-28 18:38:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 953 transitions. [2020-10-28 18:38:39,086 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 953 transitions. Word has length 78 [2020-10-28 18:38:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:38:39,087 INFO L481 AbstractCegarLoop]: Abstraction has 719 states and 953 transitions. [2020-10-28 18:38:39,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:38:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 953 transitions. [2020-10-28 18:38:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-28 18:38:39,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:38:39,089 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] [2020-10-28 18:38:39,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 18:38:39,090 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:38:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:38:39,090 INFO L82 PathProgramCache]: Analyzing trace with hash -293509269, now seen corresponding path program 1 times [2020-10-28 18:38:39,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:38:39,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571690408] [2020-10-28 18:38:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:38:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:39,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:39,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:41,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:44,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:44,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 18:38:44,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 18:38:44,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 18:38:44,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:44,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:38:44,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:38:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 18:38:44,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:45,156 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:38:45,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:38:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:45,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:45,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:45,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:38:45,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:38:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 18:38:45,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:45,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:38:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:38:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 18:38:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:38:45,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571690408] [2020-10-28 18:38:45,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:38:45,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 18:38:45,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849333982] [2020-10-28 18:38:45,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 18:38:45,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:38:45,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 18:38:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 18:38:45,274 INFO L87 Difference]: Start difference. First operand 719 states and 953 transitions. Second operand 6 states. [2020-10-28 18:38:46,324 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:38:49,649 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-28 18:38:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:38:50,173 INFO L93 Difference]: Finished difference Result 1348 states and 1833 transitions. [2020-10-28 18:38:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 18:38:50,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-28 18:38:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:38:50,178 INFO L225 Difference]: With dead ends: 1348 [2020-10-28 18:38:50,178 INFO L226 Difference]: Without dead ends: 749 [2020-10-28 18:38:50,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-28 18:38:50,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-10-28 18:38:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 714. [2020-10-28 18:38:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2020-10-28 18:38:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 971 transitions. [2020-10-28 18:38:50,246 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 971 transitions. Word has length 78 [2020-10-28 18:38:50,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:38:50,247 INFO L481 AbstractCegarLoop]: Abstraction has 714 states and 971 transitions. [2020-10-28 18:38:50,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 18:38:50,247 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 971 transitions. [2020-10-28 18:38:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-28 18:38:50,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:38:50,249 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] [2020-10-28 18:38:50,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 18:38:50,249 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:38:50,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:38:50,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1948679961, now seen corresponding path program 1 times [2020-10-28 18:38:50,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:38:50,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722228065] [2020-10-28 18:38:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:38:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:50,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:51,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:51,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:52,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:52,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:52,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:55,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:38:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:38:55,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 18:38:55,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:56,341 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:38:56,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:38:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:38:56,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:38:56,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:38:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:38:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:38:56,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722228065] [2020-10-28 18:38:56,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:38:56,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:38:56,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527860952] [2020-10-28 18:38:56,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:38:56,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:38:56,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:38:56,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:38:56,440 INFO L87 Difference]: Start difference. First operand 714 states and 971 transitions. Second operand 8 states. [2020-10-28 18:38:57,573 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 372 [2020-10-28 18:39:01,191 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-28 18:39:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:39:02,514 INFO L93 Difference]: Finished difference Result 1828 states and 2567 transitions. [2020-10-28 18:39:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:39:02,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-28 18:39:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:39:02,527 INFO L225 Difference]: With dead ends: 1828 [2020-10-28 18:39:02,527 INFO L226 Difference]: Without dead ends: 1616 [2020-10-28 18:39:02,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:39:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2020-10-28 18:39:02,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 738. [2020-10-28 18:39:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-10-28 18:39:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1004 transitions. [2020-10-28 18:39:02,632 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1004 transitions. Word has length 79 [2020-10-28 18:39:02,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:39:02,633 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 1004 transitions. [2020-10-28 18:39:02,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:39:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1004 transitions. [2020-10-28 18:39:02,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-28 18:39:02,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:39:02,635 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] [2020-10-28 18:39:02,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 18:39:02,635 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:39:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:39:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1622990650, now seen corresponding path program 1 times [2020-10-28 18:39:02,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:39:02,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231497640] [2020-10-28 18:39:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:39:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:03,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:03,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:03,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:03,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:06,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:07,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:07,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:07,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 18:39:07,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 18:39:07,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-28 18:39:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:08,731 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:39:08,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:39:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:08,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:39:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:39:08,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231497640] [2020-10-28 18:39:08,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:39:08,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 18:39:08,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059050310] [2020-10-28 18:39:08,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 18:39:08,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:39:08,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 18:39:08,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 18:39:08,832 INFO L87 Difference]: Start difference. First operand 738 states and 1004 transitions. Second operand 6 states. [2020-10-28 18:39:10,856 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 361 DAG size of output: 360 [2020-10-28 18:39:13,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:39:13,335 INFO L93 Difference]: Finished difference Result 1111 states and 1536 transitions. [2020-10-28 18:39:13,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 18:39:13,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-10-28 18:39:13,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:39:13,339 INFO L225 Difference]: With dead ends: 1111 [2020-10-28 18:39:13,339 INFO L226 Difference]: Without dead ends: 686 [2020-10-28 18:39:13,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:39:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-10-28 18:39:13,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2020-10-28 18:39:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2020-10-28 18:39:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 936 transitions. [2020-10-28 18:39:13,418 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 936 transitions. Word has length 79 [2020-10-28 18:39:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:39:13,419 INFO L481 AbstractCegarLoop]: Abstraction has 686 states and 936 transitions. [2020-10-28 18:39:13,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 18:39:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 936 transitions. [2020-10-28 18:39:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 18:39:13,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:39:13,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:39:13,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 18:39:13,421 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:39:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:39:13,422 INFO L82 PathProgramCache]: Analyzing trace with hash -49132005, now seen corresponding path program 1 times [2020-10-28 18:39:13,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:39:13,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133674761] [2020-10-28 18:39:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:39:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:13,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:13,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:14,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:14,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:14,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:15,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:18,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:18,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 18:39:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 18:39:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 18:39:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:18,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:39:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:39:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-28 18:39:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:19,547 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:39:19,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:39:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:19,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:19,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:19,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:39:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:39:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:39:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:39:19,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133674761] [2020-10-28 18:39:19,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:39:19,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:39:19,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066485881] [2020-10-28 18:39:19,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:39:19,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:39:19,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:39:19,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:39:19,615 INFO L87 Difference]: Start difference. First operand 686 states and 936 transitions. Second operand 8 states. [2020-10-28 18:39:21,685 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 366 DAG size of output: 362 [2020-10-28 18:39:26,130 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 368 DAG size of output: 360 [2020-10-28 18:39:27,332 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2020-10-28 18:39:30,266 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 367 DAG size of output: 359 [2020-10-28 18:39:31,247 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2020-10-28 18:39:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:39:31,695 INFO L93 Difference]: Finished difference Result 3569 states and 5172 transitions. [2020-10-28 18:39:31,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-28 18:39:31,695 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 18:39:31,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:39:31,708 INFO L225 Difference]: With dead ends: 3569 [2020-10-28 18:39:31,708 INFO L226 Difference]: Without dead ends: 3198 [2020-10-28 18:39:31,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2020-10-28 18:39:31,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2020-10-28 18:39:31,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 688. [2020-10-28 18:39:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-28 18:39:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 938 transitions. [2020-10-28 18:39:31,824 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 938 transitions. Word has length 80 [2020-10-28 18:39:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:39:31,825 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 938 transitions. [2020-10-28 18:39:31,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:39:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 938 transitions. [2020-10-28 18:39:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 18:39:31,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:39:31,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:39:31,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 18:39:31,827 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:39:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:39:31,828 INFO L82 PathProgramCache]: Analyzing trace with hash 169742408, now seen corresponding path program 1 times [2020-10-28 18:39:31,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:39:31,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959680410] [2020-10-28 18:39:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:39:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:31,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:31,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:32,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:32,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:32,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:33,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:33,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:35,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:35,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:36,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:36,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:36,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 18:39:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 18:39:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 18:39:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:36,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:39:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:39:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 18:39:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:37,909 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:39:37,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:39:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:37,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:37,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:39:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:39:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:39:37,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:39:37,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959680410] [2020-10-28 18:39:37,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:39:37,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:39:37,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151963563] [2020-10-28 18:39:37,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:39:37,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:39:37,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:39:37,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:39:37,966 INFO L87 Difference]: Start difference. First operand 688 states and 938 transitions. Second operand 8 states. [2020-10-28 18:39:39,048 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-28 18:39:42,353 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:39:43,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:39:43,761 INFO L93 Difference]: Finished difference Result 1670 states and 2368 transitions. [2020-10-28 18:39:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:39:43,761 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 18:39:43,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:39:43,768 INFO L225 Difference]: With dead ends: 1670 [2020-10-28 18:39:43,768 INFO L226 Difference]: Without dead ends: 1455 [2020-10-28 18:39:43,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:39:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-10-28 18:39:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 688. [2020-10-28 18:39:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-28 18:39:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 936 transitions. [2020-10-28 18:39:43,871 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 936 transitions. Word has length 80 [2020-10-28 18:39:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:39:43,871 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 936 transitions. [2020-10-28 18:39:43,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:39:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 936 transitions. [2020-10-28 18:39:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 18:39:43,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:39:43,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:39:43,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 18:39:43,874 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:39:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:39:43,874 INFO L82 PathProgramCache]: Analyzing trace with hash 777428679, now seen corresponding path program 1 times [2020-10-28 18:39:43,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:39:43,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025385014] [2020-10-28 18:39:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:39:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:43,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:44,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:44,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:44,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:46,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:46,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:47,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:47,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:47,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:48,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:48,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:48,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:48,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 18:39:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 18:39:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 18:39:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:50,033 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:39:50,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:39:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:50,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:39:50,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:39:50,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:39:50,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:39:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:39:50,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025385014] [2020-10-28 18:39:50,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:39:50,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:39:50,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032890438] [2020-10-28 18:39:50,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:39:50,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:39:50,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:39:50,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:39:50,103 INFO L87 Difference]: Start difference. First operand 688 states and 936 transitions. Second operand 8 states. [2020-10-28 18:39:51,224 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 372 [2020-10-28 18:39:54,853 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 363 [2020-10-28 18:39:56,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:39:56,541 INFO L93 Difference]: Finished difference Result 1289 states and 1812 transitions. [2020-10-28 18:39:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:39:56,542 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 18:39:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:39:56,546 INFO L225 Difference]: With dead ends: 1289 [2020-10-28 18:39:56,546 INFO L226 Difference]: Without dead ends: 1042 [2020-10-28 18:39:56,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:39:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2020-10-28 18:39:56,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 688. [2020-10-28 18:39:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-10-28 18:39:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 934 transitions. [2020-10-28 18:39:56,655 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 934 transitions. Word has length 80 [2020-10-28 18:39:56,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:39:56,656 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 934 transitions. [2020-10-28 18:39:56,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:39:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 934 transitions. [2020-10-28 18:39:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 18:39:56,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:39:56,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:39:56,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 18:39:56,658 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:39:56,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:39:56,659 INFO L82 PathProgramCache]: Analyzing trace with hash -756493682, now seen corresponding path program 1 times [2020-10-28 18:39:56,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:39:56,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763843468] [2020-10-28 18:39:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:39:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:39:56,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:56,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:56,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:58,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:58,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:58,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:59,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:59,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:39:59,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:01,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 18:40:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:02,921 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:40:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:40:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:02,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:02,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 18:40:02,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:40:03,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763843468] [2020-10-28 18:40:03,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:40:03,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 18:40:03,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240064021] [2020-10-28 18:40:03,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 18:40:03,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:40:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 18:40:03,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 18:40:03,004 INFO L87 Difference]: Start difference. First operand 688 states and 934 transitions. Second operand 7 states. [2020-10-28 18:40:04,022 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2020-10-28 18:40:07,622 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:40:09,372 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-28 18:40:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:40:09,507 INFO L93 Difference]: Finished difference Result 1308 states and 1824 transitions. [2020-10-28 18:40:09,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:40:09,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-28 18:40:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:40:09,512 INFO L225 Difference]: With dead ends: 1308 [2020-10-28 18:40:09,512 INFO L226 Difference]: Without dead ends: 1102 [2020-10-28 18:40:09,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:40:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-10-28 18:40:09,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 734. [2020-10-28 18:40:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-28 18:40:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 998 transitions. [2020-10-28 18:40:09,640 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 998 transitions. Word has length 80 [2020-10-28 18:40:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:40:09,640 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 998 transitions. [2020-10-28 18:40:09,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 18:40:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 998 transitions. [2020-10-28 18:40:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 18:40:09,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:40:09,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 18:40:09,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 18:40:09,643 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:40:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:40:09,643 INFO L82 PathProgramCache]: Analyzing trace with hash -430804371, now seen corresponding path program 1 times [2020-10-28 18:40:09,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:40:09,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388648638] [2020-10-28 18:40:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:40:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:09,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:09,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:09,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:10,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:11,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:11,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:12,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:12,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 18:40:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:40:14,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 18:40:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:15,771 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:40:15,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:40:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:15,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:15,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:40:15,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:40:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 18:40:15,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:15,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:40:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:40:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:40:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:40:15,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388648638] [2020-10-28 18:40:15,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:40:15,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 18:40:15,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2586853] [2020-10-28 18:40:15,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 18:40:15,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:40:15,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 18:40:15,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 18:40:15,842 INFO L87 Difference]: Start difference. First operand 734 states and 998 transitions. Second operand 7 states. [2020-10-28 18:40:16,923 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-28 18:40:19,961 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:40:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:40:21,073 INFO L93 Difference]: Finished difference Result 1359 states and 1866 transitions. [2020-10-28 18:40:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 18:40:21,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-28 18:40:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:40:21,077 INFO L225 Difference]: With dead ends: 1359 [2020-10-28 18:40:21,078 INFO L226 Difference]: Without dead ends: 930 [2020-10-28 18:40:21,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 18:40:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-10-28 18:40:21,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 734. [2020-10-28 18:40:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-28 18:40:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 994 transitions. [2020-10-28 18:40:21,192 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 994 transitions. Word has length 80 [2020-10-28 18:40:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:40:21,192 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 994 transitions. [2020-10-28 18:40:21,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 18:40:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 994 transitions. [2020-10-28 18:40:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 18:40:21,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:40:21,194 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] [2020-10-28 18:40:21,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 18:40:21,195 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:40:21,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:40:21,195 INFO L82 PathProgramCache]: Analyzing trace with hash -644762742, now seen corresponding path program 1 times [2020-10-28 18:40:21,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:40:21,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742519158] [2020-10-28 18:40:21,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:40:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:21,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:21,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:22,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:23,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:23,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:26,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:26,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:26,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 18:40:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:27,332 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:40:27,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:40:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:27,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:27,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:27,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:40:27,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:40:27,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742519158] [2020-10-28 18:40:27,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:40:27,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:40:27,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930692603] [2020-10-28 18:40:27,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:40:27,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:40:27,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:40:27,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:40:27,389 INFO L87 Difference]: Start difference. First operand 734 states and 994 transitions. Second operand 8 states. [2020-10-28 18:40:28,506 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 364 [2020-10-28 18:40:32,292 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:40:34,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:40:34,174 INFO L93 Difference]: Finished difference Result 1702 states and 2392 transitions. [2020-10-28 18:40:34,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:40:34,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-28 18:40:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:40:34,181 INFO L225 Difference]: With dead ends: 1702 [2020-10-28 18:40:34,181 INFO L226 Difference]: Without dead ends: 1501 [2020-10-28 18:40:34,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:40:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2020-10-28 18:40:34,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 734. [2020-10-28 18:40:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-28 18:40:34,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 993 transitions. [2020-10-28 18:40:34,310 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 993 transitions. Word has length 81 [2020-10-28 18:40:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:40:34,310 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 993 transitions. [2020-10-28 18:40:34,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:40:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 993 transitions. [2020-10-28 18:40:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-28 18:40:34,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:40:34,313 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] [2020-10-28 18:40:34,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 18:40:34,313 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:40:34,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:40:34,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1884745356, now seen corresponding path program 1 times [2020-10-28 18:40:34,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:40:34,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579657632] [2020-10-28 18:40:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:40:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:34,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:34,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:34,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:34,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:35,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:35,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:36,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:38,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:40:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-28 18:40:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:40,424 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:40:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:40:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:40,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:40,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:40,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:40:40,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:40:40,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:40:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:40:40,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579657632] [2020-10-28 18:40:40,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:40:40,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:40:40,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926784390] [2020-10-28 18:40:40,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:40:40,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:40:40,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:40:40,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:40:40,489 INFO L87 Difference]: Start difference. First operand 734 states and 993 transitions. Second operand 8 states. [2020-10-28 18:40:41,590 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 364 [2020-10-28 18:40:44,220 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 366 [2020-10-28 18:40:45,411 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 363 [2020-10-28 18:40:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:40:45,994 INFO L93 Difference]: Finished difference Result 1095 states and 1507 transitions. [2020-10-28 18:40:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 18:40:45,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-28 18:40:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:40:45,997 INFO L225 Difference]: With dead ends: 1095 [2020-10-28 18:40:45,997 INFO L226 Difference]: Without dead ends: 720 [2020-10-28 18:40:45,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 18:40:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-28 18:40:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 549. [2020-10-28 18:40:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-10-28 18:40:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 735 transitions. [2020-10-28 18:40:46,074 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 735 transitions. Word has length 82 [2020-10-28 18:40:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:40:46,074 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 735 transitions. [2020-10-28 18:40:46,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:40:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 735 transitions. [2020-10-28 18:40:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-28 18:40:46,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:40:46,076 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] [2020-10-28 18:40:46,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 18:40:46,076 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:40:46,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:40:46,076 INFO L82 PathProgramCache]: Analyzing trace with hash 33073612, now seen corresponding path program 1 times [2020-10-28 18:40:46,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:40:46,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013758830] [2020-10-28 18:40:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:40:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:46,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:47,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:48,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:50,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:51,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:51,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 18:40:51,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-28 18:40:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 18:40:51,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:51,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 18:40:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 18:40:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 18:40:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:52,118 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:40:52,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:40:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:40:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:40:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:40:52,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013758830] [2020-10-28 18:40:52,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:40:52,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 18:40:52,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757653643] [2020-10-28 18:40:52,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 18:40:52,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:40:52,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 18:40:52,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 18:40:52,172 INFO L87 Difference]: Start difference. First operand 549 states and 735 transitions. Second operand 6 states. [2020-10-28 18:40:53,162 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2020-10-28 18:40:55,773 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2020-10-28 18:40:57,005 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2020-10-28 18:40:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:40:59,259 INFO L93 Difference]: Finished difference Result 2401 states and 3409 transitions. [2020-10-28 18:40:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 18:40:59,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-10-28 18:40:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:40:59,267 INFO L225 Difference]: With dead ends: 2401 [2020-10-28 18:40:59,267 INFO L226 Difference]: Without dead ends: 2188 [2020-10-28 18:40:59,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-28 18:40:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2020-10-28 18:40:59,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1286. [2020-10-28 18:40:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-10-28 18:40:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1805 transitions. [2020-10-28 18:40:59,552 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1805 transitions. Word has length 82 [2020-10-28 18:40:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:40:59,553 INFO L481 AbstractCegarLoop]: Abstraction has 1286 states and 1805 transitions. [2020-10-28 18:40:59,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 18:40:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1805 transitions. [2020-10-28 18:40:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-28 18:40:59,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:40:59,555 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] [2020-10-28 18:40:59,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 18:40:59,555 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:40:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:40:59,556 INFO L82 PathProgramCache]: Analyzing trace with hash 599491342, now seen corresponding path program 1 times [2020-10-28 18:40:59,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:40:59,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854360082] [2020-10-28 18:40:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:40:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:40:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:40:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:00,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:00,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:00,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:00,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:01,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:01,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:03,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:04,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 18:41:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:41:05,646 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2020-10-28 18:41:05,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 18:41:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:41:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 18:41:05,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 18:41:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 18:41:05,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854360082] [2020-10-28 18:41:05,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 18:41:05,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 18:41:05,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791813688] [2020-10-28 18:41:05,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 18:41:05,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 18:41:05,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 18:41:05,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 18:41:05,724 INFO L87 Difference]: Start difference. First operand 1286 states and 1805 transitions. Second operand 8 states. [2020-10-28 18:41:06,801 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-28 18:41:09,444 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 360 [2020-10-28 18:41:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 18:41:10,811 INFO L93 Difference]: Finished difference Result 3505 states and 5052 transitions. [2020-10-28 18:41:10,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 18:41:10,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-28 18:41:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 18:41:10,824 INFO L225 Difference]: With dead ends: 3505 [2020-10-28 18:41:10,824 INFO L226 Difference]: Without dead ends: 2574 [2020-10-28 18:41:10,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-28 18:41:10,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2020-10-28 18:41:11,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1286. [2020-10-28 18:41:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-10-28 18:41:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1801 transitions. [2020-10-28 18:41:11,111 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1801 transitions. Word has length 82 [2020-10-28 18:41:11,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 18:41:11,112 INFO L481 AbstractCegarLoop]: Abstraction has 1286 states and 1801 transitions. [2020-10-28 18:41:11,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 18:41:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1801 transitions. [2020-10-28 18:41:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-28 18:41:11,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 18:41:11,113 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] [2020-10-28 18:41:11,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 18:41:11,113 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 18:41:11,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 18:41:11,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1962387185, now seen corresponding path program 1 times [2020-10-28 18:41:11,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 18:41:11,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154497660] [2020-10-28 18:41:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 18:41:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 18:41:11,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:12,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:12,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:13,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:13,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:13,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:14,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:14,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:14,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 18:41:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 18:41:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 18:41:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 18:41:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0