/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/verifythis/prefixsum_rec.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 14:47:55,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 14:47:55,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 14:47:55,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 14:47:55,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 14:47:55,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 14:47:55,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 14:47:55,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 14:47:55,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 14:47:55,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 14:47:55,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 14:47:55,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 14:47:55,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 14:47:55,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 14:47:55,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 14:47:55,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 14:47:55,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 14:47:55,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 14:47:55,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 14:47:55,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 14:47:55,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 14:47:55,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 14:47:55,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 14:47:55,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 14:47:55,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 14:47:55,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 14:47:55,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 14:47:55,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 14:47:55,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 14:47:55,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 14:47:55,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 14:47:55,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 14:47:55,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 14:47:55,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 14:47:55,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 14:47:55,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 14:47:55,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 14:47:55,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 14:47:55,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 14:47:55,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 14:47:55,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 14:47:55,157 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 [2020-10-29 14:47:55,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 14:47:55,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 14:47:55,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 14:47:55,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 14:47:55,223 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 14:47:55,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 14:47:55,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 14:47:55,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 14:47:55,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 14:47:55,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 14:47:55,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 14:47:55,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 14:47:55,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 14:47:55,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 14:47:55,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 14:47:55,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 14:47:55,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 14:47:55,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 14:47:55,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 14:47:55,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 14:47:55,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 14:47:55,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:47:55,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 14:47:55,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 14:47:55,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 14:47:55,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 14:47:55,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 14:47:55,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 14:47:55,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 14:47:55,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 14:47:55,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 14:47:55,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 14:47:55,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 14:47:55,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 14:47:55,713 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 14:47:55,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/prefixsum_rec.c [2020-10-29 14:47:55,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cdc3bfc1/54dc34e1194742bea24642df6e56628d/FLAG65b6f9a1d [2020-10-29 14:47:56,431 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 14:47:56,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/prefixsum_rec.c [2020-10-29 14:47:56,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cdc3bfc1/54dc34e1194742bea24642df6e56628d/FLAG65b6f9a1d [2020-10-29 14:47:56,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cdc3bfc1/54dc34e1194742bea24642df6e56628d [2020-10-29 14:47:56,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 14:47:56,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 14:47:56,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 14:47:56,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 14:47:56,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 14:47:56,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:47:56" (1/1) ... [2020-10-29 14:47:56,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1812ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:56, skipping insertion in model container [2020-10-29 14:47:56,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:47:56" (1/1) ... [2020-10-29 14:47:56,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 14:47:56,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 14:47:56,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:47:57,008 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 14:47:57,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 14:47:57,056 INFO L208 MainTranslator]: Completed translation [2020-10-29 14:47:57,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57 WrapperNode [2020-10-29 14:47:57,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 14:47:57,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 14:47:57,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 14:47:57,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 14:47:57,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... [2020-10-29 14:47:57,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 14:47:57,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 14:47:57,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 14:47:57,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 14:47:57,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 14:47:57,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 14:47:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 14:47:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 14:47:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 14:47:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 14:47:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure upsweep [2020-10-29 14:47:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure downsweep [2020-10-29 14:47:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure is_pow2 [2020-10-29 14:47:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 14:47:57,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 14:47:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 14:47:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 14:47:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 14:47:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 14:47:57,201 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 14:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 14:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 14:47:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 14:47:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 14:47:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 14:47:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure upsweep [2020-10-29 14:47:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 14:47:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 14:47:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure downsweep [2020-10-29 14:47:57,205 INFO L130 BoogieDeclarations]: Found specification of procedure is_pow2 [2020-10-29 14:47:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 14:47:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 14:47:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 14:47:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 14:47:57,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 14:47:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 14:47:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 14:47:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 14:47:57,801 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 14:47:57,801 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 14:47:57,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:47:57 BoogieIcfgContainer [2020-10-29 14:47:57,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 14:47:57,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 14:47:57,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 14:47:57,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 14:47:57,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 02:47:56" (1/3) ... [2020-10-29 14:47:57,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ab1d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:47:57, skipping insertion in model container [2020-10-29 14:47:57,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:47:57" (2/3) ... [2020-10-29 14:47:57,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ab1d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 02:47:57, skipping insertion in model container [2020-10-29 14:47:57,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:47:57" (3/3) ... [2020-10-29 14:47:57,816 INFO L111 eAbstractionObserver]: Analyzing ICFG prefixsum_rec.c [2020-10-29 14:47:57,829 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 14:47:57,835 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 14:47:57,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 14:47:57,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 14:47:57,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 14:47:57,898 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 14:47:57,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 14:47:57,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 14:47:57,898 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 14:47:57,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 14:47:57,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 14:47:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-29 14:47:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 14:47:57,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:47:57,940 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:47:57,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:47:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:47:57,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1110892396, now seen corresponding path program 1 times [2020-10-29 14:47:57,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:47:57,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269522115] [2020-10-29 14:47:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:47:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:47:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:58,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:47:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:00,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 14:48:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:48:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2364 [2020-10-29 14:48:00,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:00,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 14:48:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-29 14:48:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:48:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 14:48:01,055 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 8 [2020-10-29 14:48:01,281 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 9 [2020-10-29 14:48:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:01,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 14:48:01,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:01,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:01,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 14:48:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:01,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:01,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:48:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:01,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 14:48:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:48:01,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:48:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:01,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:01,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 14:48:01,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:01,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:01,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:48:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:01,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:01,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:01,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 14:48:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:48:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:01,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 14:48:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:01,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:01,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:01,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 14:48:01,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:01,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:48:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:48:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 14:48:01,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269522115] [2020-10-29 14:48:01,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:01,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:48:01,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466865889] [2020-10-29 14:48:01,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:48:01,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:01,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:48:01,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:01,766 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 14 states. [2020-10-29 14:48:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:03,085 INFO L93 Difference]: Finished difference Result 154 states and 206 transitions. [2020-10-29 14:48:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 14:48:03,087 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-10-29 14:48:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:03,100 INFO L225 Difference]: With dead ends: 154 [2020-10-29 14:48:03,100 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 14:48:03,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2020-10-29 14:48:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 14:48:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2020-10-29 14:48:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-29 14:48:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2020-10-29 14:48:03,167 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 55 [2020-10-29 14:48:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:03,167 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-10-29 14:48:03,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:48:03,168 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2020-10-29 14:48:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 14:48:03,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:03,172 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:03,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 14:48:03,186 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1058653067, now seen corresponding path program 1 times [2020-10-29 14:48:03,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:03,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648125870] [2020-10-29 14:48:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:03,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:03,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:03,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:04,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 14:48:08,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:48:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 14:48:08,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:48:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 14:48:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 14:48:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:08,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:08,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:48:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:08,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 14:48:08,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:48:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:48:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:08,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 14:48:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:48:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 14:48:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 14:48:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:08,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 14:48:08,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:48:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:08,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 14:48:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:08,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:08,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:08,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:48:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 14:48:08,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648125870] [2020-10-29 14:48:08,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:08,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 14:48:08,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163721736] [2020-10-29 14:48:08,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 14:48:08,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:08,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 14:48:08,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 14:48:08,686 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 12 states. [2020-10-29 14:48:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:09,672 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2020-10-29 14:48:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:48:09,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-10-29 14:48:09,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:09,678 INFO L225 Difference]: With dead ends: 113 [2020-10-29 14:48:09,678 INFO L226 Difference]: Without dead ends: 92 [2020-10-29 14:48:09,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2020-10-29 14:48:09,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-29 14:48:09,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-10-29 14:48:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-29 14:48:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2020-10-29 14:48:09,723 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 63 [2020-10-29 14:48:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:09,723 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2020-10-29 14:48:09,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 14:48:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2020-10-29 14:48:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 14:48:09,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:09,729 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:09,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 14:48:09,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:09,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1065619926, now seen corresponding path program 1 times [2020-10-29 14:48:09,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:09,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083381441] [2020-10-29 14:48:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:09,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:09,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:09,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:09,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:10,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 14:48:14,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:48:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 14:48:14,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 14:48:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 14:48:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:14,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:14,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:48:14,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 14:48:14,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:14,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:48:14,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:48:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:14,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:14,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:14,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:48:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:14,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:14,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:48:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 14:48:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:14,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:48:14,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:14,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 14:48:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:48:14,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 14:48:14,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:14,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:14,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:14,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:14,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:14,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:48:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:15,009 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-29 14:48:15,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083381441] [2020-10-29 14:48:15,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:15,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 14:48:15,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241899482] [2020-10-29 14:48:15,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 14:48:15,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:15,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 14:48:15,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-29 14:48:15,013 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand 8 states. [2020-10-29 14:48:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:15,527 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2020-10-29 14:48:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 14:48:15,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-29 14:48:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:15,533 INFO L225 Difference]: With dead ends: 140 [2020-10-29 14:48:15,534 INFO L226 Difference]: Without dead ends: 93 [2020-10-29 14:48:15,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-29 14:48:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-29 14:48:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-29 14:48:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 115 transitions. [2020-10-29 14:48:15,564 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 115 transitions. Word has length 65 [2020-10-29 14:48:15,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:15,566 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 115 transitions. [2020-10-29 14:48:15,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 14:48:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 115 transitions. [2020-10-29 14:48:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 14:48:15,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:15,574 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:15,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 14:48:15,574 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:15,575 INFO L82 PathProgramCache]: Analyzing trace with hash 938803157, now seen corresponding path program 1 times [2020-10-29 14:48:15,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:15,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828763706] [2020-10-29 14:48:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:15,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:15,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:16,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:20,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 14:48:20,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:48:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 14:48:20,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:20,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:48:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:48:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 14:48:20,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:20,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:20,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:20,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:20,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:20,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:20,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:20,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:48:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:20,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:20,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:20,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:20,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:20,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:20,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:48:20,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:20,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 14:48:20,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:20,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:48:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:48:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 14:48:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:21,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 14:48:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:48:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 14:48:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:21,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:21,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 14:48:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:21,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 14:48:21,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 14:48:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:48:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:48:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:48:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:21,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:48:21,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:21,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:21,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:48:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:21,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:21,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:48:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:21,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:21,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:21,325 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 14:48:21,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828763706] [2020-10-29 14:48:21,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:21,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:48:21,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364381077] [2020-10-29 14:48:21,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:48:21,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:21,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:48:21,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:21,329 INFO L87 Difference]: Start difference. First operand 91 states and 115 transitions. Second operand 14 states. [2020-10-29 14:48:22,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:22,882 INFO L93 Difference]: Finished difference Result 125 states and 160 transitions. [2020-10-29 14:48:22,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 14:48:22,883 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-29 14:48:22,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:22,886 INFO L225 Difference]: With dead ends: 125 [2020-10-29 14:48:22,886 INFO L226 Difference]: Without dead ends: 112 [2020-10-29 14:48:22,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2020-10-29 14:48:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-29 14:48:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2020-10-29 14:48:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 14:48:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 143 transitions. [2020-10-29 14:48:22,916 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 143 transitions. Word has length 68 [2020-10-29 14:48:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:22,916 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 143 transitions. [2020-10-29 14:48:22,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:48:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 143 transitions. [2020-10-29 14:48:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 14:48:22,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:22,918 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:22,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 14:48:22,918 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:22,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:22,919 INFO L82 PathProgramCache]: Analyzing trace with hash 120365128, now seen corresponding path program 2 times [2020-10-29 14:48:22,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:22,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316228953] [2020-10-29 14:48:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:23,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:23,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:23,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:27,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:48:27,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:48:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:28,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:28,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:48:28,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 14:48:28,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:48:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:48:28,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:48:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:28,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:48:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:28,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:48:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:28,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 14:48:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:48:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 14:48:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:48:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:28,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:28,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-29 14:48:28,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316228953] [2020-10-29 14:48:28,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:28,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 14:48:28,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998746881] [2020-10-29 14:48:28,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 14:48:28,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:28,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 14:48:28,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-29 14:48:28,590 INFO L87 Difference]: Start difference. First operand 110 states and 143 transitions. Second operand 12 states. [2020-10-29 14:48:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:30,113 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions. [2020-10-29 14:48:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:48:30,114 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-29 14:48:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:30,117 INFO L225 Difference]: With dead ends: 140 [2020-10-29 14:48:30,117 INFO L226 Difference]: Without dead ends: 109 [2020-10-29 14:48:30,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2020-10-29 14:48:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-29 14:48:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-10-29 14:48:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-29 14:48:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2020-10-29 14:48:30,157 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 138 transitions. Word has length 69 [2020-10-29 14:48:30,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:30,160 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 138 transitions. [2020-10-29 14:48:30,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 14:48:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 138 transitions. [2020-10-29 14:48:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 14:48:30,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:30,161 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:30,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 14:48:30,162 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:30,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1242299048, now seen corresponding path program 1 times [2020-10-29 14:48:30,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:30,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603879254] [2020-10-29 14:48:30,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:30,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:30,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:34,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 14:48:35,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 14:48:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:35,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:35,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:35,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:35,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:35,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:48:35,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:48:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:35,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:48:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:35,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:35,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:48:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:35,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:35,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:35,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:48:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:35,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 14:48:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:48:35,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:35,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 14:48:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:48:35,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:48:35,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:35,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:48:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:35,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:35,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:35,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:35,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:35,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:35,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:35,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:35,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-29 14:48:35,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603879254] [2020-10-29 14:48:35,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:35,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 14:48:35,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151858633] [2020-10-29 14:48:35,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 14:48:35,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:35,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 14:48:35,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-29 14:48:35,430 INFO L87 Difference]: Start difference. First operand 108 states and 138 transitions. Second operand 9 states. [2020-10-29 14:48:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:35,894 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2020-10-29 14:48:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 14:48:35,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-29 14:48:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:35,897 INFO L225 Difference]: With dead ends: 164 [2020-10-29 14:48:35,897 INFO L226 Difference]: Without dead ends: 114 [2020-10-29 14:48:35,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:48:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-29 14:48:35,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-29 14:48:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 14:48:35,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 144 transitions. [2020-10-29 14:48:35,920 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 144 transitions. Word has length 67 [2020-10-29 14:48:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:35,926 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 144 transitions. [2020-10-29 14:48:35,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 14:48:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 144 transitions. [2020-10-29 14:48:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 14:48:35,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:35,930 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:35,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 14:48:35,931 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:35,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:35,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1345658970, now seen corresponding path program 2 times [2020-10-29 14:48:35,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:35,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154844477] [2020-10-29 14:48:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:35,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:35,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:36,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:40,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:40,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 14:48:40,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:48:40,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 14:48:40,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:40,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:48:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 14:48:40,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:48:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:41,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:48:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:48:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:41,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:48:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:48:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:48:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:48:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:41,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:41,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:41,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:48:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:48:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:48:41,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:48:41,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:48:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:48:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 14:48:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 14:48:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 14:48:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:48:41,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 14:48:41,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:48:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:48:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:41,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:48:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:41,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:41,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:48:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:48:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-29 14:48:41,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154844477] [2020-10-29 14:48:41,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:48:41,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 14:48:41,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797850601] [2020-10-29 14:48:41,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 14:48:41,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:48:41,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 14:48:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 14:48:41,271 INFO L87 Difference]: Start difference. First operand 114 states and 144 transitions. Second operand 11 states. [2020-10-29 14:48:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:48:42,194 INFO L93 Difference]: Finished difference Result 151 states and 191 transitions. [2020-10-29 14:48:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 14:48:42,198 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-10-29 14:48:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:48:42,202 INFO L225 Difference]: With dead ends: 151 [2020-10-29 14:48:42,203 INFO L226 Difference]: Without dead ends: 117 [2020-10-29 14:48:42,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2020-10-29 14:48:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-29 14:48:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2020-10-29 14:48:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 14:48:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2020-10-29 14:48:42,243 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 69 [2020-10-29 14:48:42,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:48:42,244 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2020-10-29 14:48:42,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 14:48:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-10-29 14:48:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 14:48:42,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:48:42,248 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:48:42,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 14:48:42,248 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:48:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:48:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1323590174, now seen corresponding path program 1 times [2020-10-29 14:48:42,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:48:42,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933119426] [2020-10-29 14:48:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:48:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:48:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:42,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:43,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:44,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:48:47,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:48:47,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 14:48:47,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 14:48:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 14:48:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:48:49,148 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 34 [2020-10-29 14:48:49,671 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 35 [2020-10-29 14:48:50,250 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 31 [2020-10-29 14:48:51,008 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 31 [2020-10-29 14:48:51,514 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 20 [2020-10-29 14:48:52,433 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 52 [2020-10-29 14:48:53,373 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 51 [2020-10-29 14:48:55,172 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 131 DAG size of output: 53 [2020-10-29 14:48:56,283 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2020-10-29 14:48:58,730 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2020-10-29 14:49:00,909 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2020-10-29 14:49:01,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:01,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:01,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:01,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:01,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:01,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:01,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:01,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:01,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:01,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:49:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:01,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:01,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:49:01,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:01,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:49:01,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:02,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 14:49:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:02,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:02,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:02,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 14:49:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:02,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:02,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:02,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:02,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:02,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 14:49:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:02,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:02,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:02,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 14:49:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:02,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:02,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:49:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:49:02,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:03,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 14:49:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:03,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:03,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:03,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:49:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:10,737 WARN L193 SmtUtils]: Spent 3.76 s on a formula simplification. DAG size of input: 179 DAG size of output: 53 [2020-10-29 14:49:10,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 14:49:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:10,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:10,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:10,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:10,863 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-29 14:49:10,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933119426] [2020-10-29 14:49:10,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:10,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-29 14:49:10,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950142475] [2020-10-29 14:49:10,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-29 14:49:10,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:10,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-29 14:49:10,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 14:49:10,866 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand 33 states. [2020-10-29 14:49:14,644 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 14:49:19,347 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 14:49:20,491 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 14:49:27,964 WARN L193 SmtUtils]: Spent 6.65 s on a formula simplification. DAG size of input: 155 DAG size of output: 143 [2020-10-29 14:49:36,324 WARN L193 SmtUtils]: Spent 6.62 s on a formula simplification. DAG size of input: 157 DAG size of output: 145 [2020-10-29 14:49:44,285 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 128 [2020-10-29 14:49:47,433 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 14:49:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:49:52,316 INFO L93 Difference]: Finished difference Result 134 states and 167 transitions. [2020-10-29 14:49:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-29 14:49:52,318 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 68 [2020-10-29 14:49:52,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:49:52,321 INFO L225 Difference]: With dead ends: 134 [2020-10-29 14:49:52,321 INFO L226 Difference]: Without dead ends: 131 [2020-10-29 14:49:52,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=434, Invalid=3598, Unknown=0, NotChecked=0, Total=4032 [2020-10-29 14:49:52,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-29 14:49:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2020-10-29 14:49:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-29 14:49:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 154 transitions. [2020-10-29 14:49:52,358 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 154 transitions. Word has length 68 [2020-10-29 14:49:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:49:52,360 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 154 transitions. [2020-10-29 14:49:52,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-29 14:49:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 154 transitions. [2020-10-29 14:49:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 14:49:52,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:49:52,364 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:49:52,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 14:49:52,364 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:49:52,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:49:52,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1587249884, now seen corresponding path program 3 times [2020-10-29 14:49:52,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:49:52,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424493728] [2020-10-29 14:49:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:49:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:52,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:52,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:52,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:52,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:52,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:54,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:54,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 14:49:57,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:49:57,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 14:49:57,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:49:57,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:49:57,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 14:49:57,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:49:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:49:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:49:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:49:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:57,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:49:57,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:49:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 14:49:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 14:49:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:49:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 14:49:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 14:49:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:49:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:49:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:49:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 14:49:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:49:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:49:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:57,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:49:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:49:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:49:57,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:49:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:49:57,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:49:57,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:49:57,938 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-29 14:49:57,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424493728] [2020-10-29 14:49:57,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:49:57,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 14:49:57,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126519941] [2020-10-29 14:49:57,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 14:49:57,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:49:57,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 14:49:57,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 14:49:57,940 INFO L87 Difference]: Start difference. First operand 124 states and 154 transitions. Second operand 13 states. [2020-10-29 14:50:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:00,082 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2020-10-29 14:50:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 14:50:00,084 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-10-29 14:50:00,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:00,086 INFO L225 Difference]: With dead ends: 137 [2020-10-29 14:50:00,086 INFO L226 Difference]: Without dead ends: 104 [2020-10-29 14:50:00,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2020-10-29 14:50:00,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-29 14:50:00,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-29 14:50:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-29 14:50:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2020-10-29 14:50:00,107 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 71 [2020-10-29 14:50:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:00,108 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2020-10-29 14:50:00,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 14:50:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2020-10-29 14:50:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 14:50:00,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:00,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:00,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 14:50:00,109 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:00,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1724817445, now seen corresponding path program 1 times [2020-10-29 14:50:00,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:00,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648623371] [2020-10-29 14:50:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:00,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:00,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:00,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:00,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:05,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 14:50:05,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:50:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 14:50:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:05,296 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2020-10-29 14:50:05,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:05,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:05,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:05,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:05,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:05,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:05,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:05,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:05,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:05,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:05,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:05,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:05,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:05,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:50:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:05,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:05,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 14:50:05,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:05,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:50:05,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:05,816 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-10-29 14:50:05,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 14:50:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:05,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:05,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 14:50:05,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:05,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 14:50:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:06,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:06,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 14:50:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:06,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:06,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 14:50:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:50:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:06,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:06,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:06,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:06,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 14:50:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:06,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 14:50:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 14:50:06,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648623371] [2020-10-29 14:50:06,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:06,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:50:06,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692008746] [2020-10-29 14:50:06,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:50:06,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:06,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:50:06,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:50:06,296 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 14 states. [2020-10-29 14:50:07,423 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 14:50:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:09,173 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2020-10-29 14:50:09,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 14:50:09,175 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 72 [2020-10-29 14:50:09,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:09,177 INFO L225 Difference]: With dead ends: 125 [2020-10-29 14:50:09,177 INFO L226 Difference]: Without dead ends: 102 [2020-10-29 14:50:09,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2020-10-29 14:50:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-29 14:50:09,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-29 14:50:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-29 14:50:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-10-29 14:50:09,196 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 72 [2020-10-29 14:50:09,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:09,196 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-10-29 14:50:09,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:50:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2020-10-29 14:50:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-29 14:50:09,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:09,198 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:09,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 14:50:09,198 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:09,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1752510696, now seen corresponding path program 2 times [2020-10-29 14:50:09,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:09,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090561365] [2020-10-29 14:50:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:09,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:09,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:09,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:09,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:09,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:10,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:10,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 14:50:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:50:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 14:50:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:14,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:50:14,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:14,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:14,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:14,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:14,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:50:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:50:14,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 14:50:14,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:50:14,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,657 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 14 [2020-10-29 14:50:14,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:50:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:14,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:14,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:14,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:50:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:50:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:14,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:14,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:14,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:50:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:14,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:14,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:14,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:14,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:14,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 14:50:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:14,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:14,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 14:50:15,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090561365] [2020-10-29 14:50:15,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:15,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 14:50:15,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539460901] [2020-10-29 14:50:15,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 14:50:15,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:15,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 14:50:15,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 14:50:15,042 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 12 states. [2020-10-29 14:50:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:17,168 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2020-10-29 14:50:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 14:50:17,175 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-29 14:50:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:17,176 INFO L225 Difference]: With dead ends: 115 [2020-10-29 14:50:17,177 INFO L226 Difference]: Without dead ends: 102 [2020-10-29 14:50:17,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:50:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-29 14:50:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-29 14:50:17,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-29 14:50:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-10-29 14:50:17,199 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 73 [2020-10-29 14:50:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:17,200 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-10-29 14:50:17,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 14:50:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-10-29 14:50:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 14:50:17,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:17,202 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:17,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 14:50:17,202 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:17,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:17,202 INFO L82 PathProgramCache]: Analyzing trace with hash 204617176, now seen corresponding path program 1 times [2020-10-29 14:50:17,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:17,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889974812] [2020-10-29 14:50:17,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:17,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:19,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:19,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:22,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:22,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:50:22,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:50:22,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 14:50:22,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:22,438 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 14 [2020-10-29 14:50:22,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:22,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:22,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:22,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:22,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:22,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:22,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:22,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:22,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:50:22,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:22,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:50:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:22,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:22,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:50:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:50:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:50:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:50:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:50:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:23,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:50:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:23,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:23,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 14:50:23,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:50:23,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:23,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:50:23,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:23,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 14:50:23,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:23,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:23,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 14:50:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:50:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 14:50:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 14:50:23,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 14:50:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:23,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:50:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:23,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:23,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:23,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:23,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 14:50:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:23,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:23,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:23,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 14:50:23,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:23,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-29 14:50:24,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889974812] [2020-10-29 14:50:24,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:24,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 14:50:24,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352582168] [2020-10-29 14:50:24,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 14:50:24,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:24,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 14:50:24,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-29 14:50:24,137 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 18 states. [2020-10-29 14:50:35,265 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 14:50:42,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:42,279 INFO L93 Difference]: Finished difference Result 148 states and 189 transitions. [2020-10-29 14:50:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 14:50:42,282 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 93 [2020-10-29 14:50:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:42,284 INFO L225 Difference]: With dead ends: 148 [2020-10-29 14:50:42,285 INFO L226 Difference]: Without dead ends: 127 [2020-10-29 14:50:42,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=153, Invalid=1037, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 14:50:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-29 14:50:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 105. [2020-10-29 14:50:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-29 14:50:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-10-29 14:50:42,304 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 93 [2020-10-29 14:50:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:42,305 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-10-29 14:50:42,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 14:50:42,305 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-10-29 14:50:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 14:50:42,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:42,306 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:42,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 14:50:42,307 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:42,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1403277656, now seen corresponding path program 2 times [2020-10-29 14:50:42,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:42,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780907903] [2020-10-29 14:50:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 14:50:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:50:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:50:47,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:50:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:50:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:50:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 14:50:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:47,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:50:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 14:50:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:50:47,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:50:47,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:47,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:50:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:47,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:47,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:47,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:47,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:47,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:47,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:47,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:47,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:47,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:47,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-29 14:50:47,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780907903] [2020-10-29 14:50:47,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:47,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 14:50:47,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908014099] [2020-10-29 14:50:47,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 14:50:47,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:47,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 14:50:47,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-29 14:50:47,736 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand 10 states. [2020-10-29 14:50:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:48,938 INFO L93 Difference]: Finished difference Result 131 states and 157 transitions. [2020-10-29 14:50:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 14:50:48,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-10-29 14:50:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:48,944 INFO L225 Difference]: With dead ends: 131 [2020-10-29 14:50:48,944 INFO L226 Difference]: Without dead ends: 115 [2020-10-29 14:50:48,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:50:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-29 14:50:48,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2020-10-29 14:50:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-29 14:50:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2020-10-29 14:50:48,969 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 83 [2020-10-29 14:50:48,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:48,970 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2020-10-29 14:50:48,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 14:50:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2020-10-29 14:50:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-29 14:50:48,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:48,971 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:48,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 14:50:48,972 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:48,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:48,973 INFO L82 PathProgramCache]: Analyzing trace with hash -254101034, now seen corresponding path program 3 times [2020-10-29 14:50:48,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:48,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275255748] [2020-10-29 14:50:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:49,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 14:50:54,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 14:50:54,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 14:50:54,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 14:50:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:50:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 14:50:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:50:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:54,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:50:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:54,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:50:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:50:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:50:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:50:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:50:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:50:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 14:50:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:50:54,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:50:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 14:50:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:50:54,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:54,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:50:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:50:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 14:50:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 14:50:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:50:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:54,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:50:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:54,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:50:54,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:50:54,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:50:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-29 14:50:54,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275255748] [2020-10-29 14:50:54,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:50:54,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 14:50:54,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258904441] [2020-10-29 14:50:54,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 14:50:54,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:50:54,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 14:50:54,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-29 14:50:54,591 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. Second operand 14 states. [2020-10-29 14:50:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:50:56,738 INFO L93 Difference]: Finished difference Result 133 states and 160 transitions. [2020-10-29 14:50:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 14:50:56,741 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-29 14:50:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:50:56,743 INFO L225 Difference]: With dead ends: 133 [2020-10-29 14:50:56,743 INFO L226 Difference]: Without dead ends: 117 [2020-10-29 14:50:56,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-10-29 14:50:56,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-29 14:50:56,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 109. [2020-10-29 14:50:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-29 14:50:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 129 transitions. [2020-10-29 14:50:56,764 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 129 transitions. Word has length 85 [2020-10-29 14:50:56,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:50:56,765 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 129 transitions. [2020-10-29 14:50:56,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 14:50:56,765 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 129 transitions. [2020-10-29 14:50:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 14:50:56,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:50:56,766 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:50:56,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 14:50:56,766 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:50:56,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:50:56,767 INFO L82 PathProgramCache]: Analyzing trace with hash 437844692, now seen corresponding path program 4 times [2020-10-29 14:50:56,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:50:56,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548961904] [2020-10-29 14:50:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:50:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:50:56,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:57,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:50:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:00,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:01,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:01,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-29 14:51:01,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 14:51:01,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:02,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:02,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:51:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:02,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:51:02,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:51:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:02,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:02,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:51:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:02,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 14:51:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:51:02,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 14:51:02,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:51:02,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:02,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:02,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:02,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:51:02,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:02,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:02,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:02,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:02,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:02,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:02,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:02,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 14:51:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:02,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:02,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:03,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:51:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:51:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:03,743 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-29 14:51:04,234 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 67 [2020-10-29 14:51:04,430 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-10-29 14:51:04,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:04,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:04,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:04,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:51:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:51:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:04,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:51:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:04,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:04,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:04,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:04,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 14:51:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-29 14:51:04,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548961904] [2020-10-29 14:51:04,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:04,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 14:51:04,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394512181] [2020-10-29 14:51:04,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 14:51:04,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:04,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 14:51:04,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-29 14:51:04,960 INFO L87 Difference]: Start difference. First operand 109 states and 129 transitions. Second operand 22 states. [2020-10-29 14:51:07,923 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 14:51:08,473 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-29 14:51:09,150 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2020-10-29 14:51:10,200 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 14:51:12,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:12,158 INFO L93 Difference]: Finished difference Result 127 states and 151 transitions. [2020-10-29 14:51:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 14:51:12,161 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 87 [2020-10-29 14:51:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:12,163 INFO L225 Difference]: With dead ends: 127 [2020-10-29 14:51:12,163 INFO L226 Difference]: Without dead ends: 124 [2020-10-29 14:51:12,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=158, Invalid=1248, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 14:51:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-29 14:51:12,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 113. [2020-10-29 14:51:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-29 14:51:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 136 transitions. [2020-10-29 14:51:12,185 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 136 transitions. Word has length 87 [2020-10-29 14:51:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:12,186 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 136 transitions. [2020-10-29 14:51:12,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 14:51:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 136 transitions. [2020-10-29 14:51:12,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-29 14:51:12,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:12,187 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:51:12,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 14:51:12,188 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:12,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1610510164, now seen corresponding path program 5 times [2020-10-29 14:51:12,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:12,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819094571] [2020-10-29 14:51:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:12,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:12,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:17,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 14:51:17,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 14:51:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:17,393 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2020-10-29 14:51:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 14:51:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:17,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:17,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:17,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 14:51:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:17,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:17,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-29 14:51:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:17,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:17,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 14:51:17,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 14:51:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 14:51:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 14:51:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 14:51:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:18,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 14:51:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 14:51:18,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 14:51:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 14:51:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:51:18,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 14:51:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 14:51:18,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 14:51:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 14:51:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 14:51:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 14:51:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:51:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-29 14:51:18,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 14:51:18,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 14:51:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 14:51:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 14:51:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 14:51:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:18,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:18,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 14:51:18,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 14:51:18,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 14:51:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 14:51:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 14:51:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-29 14:51:18,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819094571] [2020-10-29 14:51:18,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 14:51:18,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 14:51:18,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872333317] [2020-10-29 14:51:18,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 14:51:18,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 14:51:18,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 14:51:18,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-29 14:51:18,782 INFO L87 Difference]: Start difference. First operand 113 states and 136 transitions. Second operand 17 states. [2020-10-29 14:51:22,178 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-29 14:51:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 14:51:24,375 INFO L93 Difference]: Finished difference Result 150 states and 181 transitions. [2020-10-29 14:51:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 14:51:24,379 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2020-10-29 14:51:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 14:51:24,382 INFO L225 Difference]: With dead ends: 150 [2020-10-29 14:51:24,384 INFO L226 Difference]: Without dead ends: 137 [2020-10-29 14:51:24,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2020-10-29 14:51:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-29 14:51:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2020-10-29 14:51:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-29 14:51:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2020-10-29 14:51:24,421 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 97 [2020-10-29 14:51:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 14:51:24,422 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2020-10-29 14:51:24,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 14:51:24,422 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2020-10-29 14:51:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 14:51:24,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 14:51:24,424 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 14:51:24,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 14:51:24,424 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 14:51:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 14:51:24,425 INFO L82 PathProgramCache]: Analyzing trace with hash 150726593, now seen corresponding path program 6 times [2020-10-29 14:51:24,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 14:51:24,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687013289] [2020-10-29 14:51:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 14:51:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 14:51:24,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:24,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:24,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 14:51:26,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking...