/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=SHALLOWEST --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/eca-rers2012/Problem06_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 21:28:35,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 21:28:35,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 21:28:35,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 21:28:35,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 21:28:35,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 21:28:36,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 21:28:36,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 21:28:36,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 21:28:36,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 21:28:36,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 21:28:36,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 21:28:36,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 21:28:36,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 21:28:36,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 21:28:36,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 21:28:36,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 21:28:36,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 21:28:36,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 21:28:36,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 21:28:36,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 21:28:36,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 21:28:36,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 21:28:36,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 21:28:36,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 21:28:36,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 21:28:36,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 21:28:36,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 21:28:36,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 21:28:36,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 21:28:36,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 21:28:36,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 21:28:36,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 21:28:36,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 21:28:36,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 21:28:36,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 21:28:36,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 21:28:36,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 21:28:36,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 21:28:36,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 21:28:36,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 21:28:36,057 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 [2020-10-26 21:28:36,085 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 21:28:36,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 21:28:36,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 21:28:36,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 21:28:36,087 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 21:28:36,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 21:28:36,088 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 21:28:36,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 21:28:36,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 21:28:36,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 21:28:36,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 21:28:36,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 21:28:36,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 21:28:36,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 21:28:36,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 21:28:36,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 21:28:36,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 21:28:36,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 21:28:36,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 21:28:36,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 21:28:36,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 21:28:36,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 21:28:36,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 21:28:36,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 21:28:36,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 21:28:36,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 21:28:36,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 21:28:36,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 21:28:36,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 21:28:36,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 21:28:36,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 21:28:36,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 21:28:36,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 21:28:36,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 21:28:36,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 21:28:36,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label11.c [2020-10-26 21:28:36,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c51157edc/867b40309acc4fd8ba17a7d6152e2a6b/FLAG6a9c20136 [2020-10-26 21:28:37,882 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 21:28:37,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label11.c [2020-10-26 21:28:37,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c51157edc/867b40309acc4fd8ba17a7d6152e2a6b/FLAG6a9c20136 [2020-10-26 21:28:38,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c51157edc/867b40309acc4fd8ba17a7d6152e2a6b [2020-10-26 21:28:38,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 21:28:38,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 21:28:38,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 21:28:38,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 21:28:38,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 21:28:38,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:38" (1/1) ... [2020-10-26 21:28:38,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a06b78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:38, skipping insertion in model container [2020-10-26 21:28:38,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:38" (1/1) ... [2020-10-26 21:28:38,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 21:28:38,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 21:28:40,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 21:28:40,445 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 21:28:41,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 21:28:41,568 INFO L208 MainTranslator]: Completed translation [2020-10-26 21:28:41,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41 WrapperNode [2020-10-26 21:28:41,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 21:28:41,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 21:28:41,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 21:28:41,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 21:28:41,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:41,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (1/1) ... [2020-10-26 21:28:42,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 21:28:42,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 21:28:42,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 21:28:42,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 21:28:42,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (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 [2020-10-26 21:28:42,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 21:28:42,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 21:28:42,224 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-26 21:28:42,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 21:28:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 21:28:42,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-26 21:28:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-26 21:28:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-26 21:28:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-26 21:28:42,227 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 21:28:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 21:28:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 21:28:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 21:28:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 21:28:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 21:28:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 21:28:49,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 21:28:49,832 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 21:28:49,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:49 BoogieIcfgContainer [2020-10-26 21:28:49,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 21:28:49,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 21:28:49,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 21:28:49,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 21:28:49,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:28:38" (1/3) ... [2020-10-26 21:28:49,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110ddd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:49, skipping insertion in model container [2020-10-26 21:28:49,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:41" (2/3) ... [2020-10-26 21:28:49,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110ddd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:49, skipping insertion in model container [2020-10-26 21:28:49,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:49" (3/3) ... [2020-10-26 21:28:49,844 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem06_label11.c [2020-10-26 21:28:49,856 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 21:28:49,861 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 21:28:49,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 21:28:49,919 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 21:28:49,919 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 21:28:49,919 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 21:28:49,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 21:28:49,920 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 21:28:49,920 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 21:28:49,920 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 21:28:49,920 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 21:28:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states. [2020-10-26 21:28:50,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 948 [2020-10-26 21:28:50,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:28:50,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:28:50,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:28:50,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:28:50,049 INFO L82 PathProgramCache]: Analyzing trace with hash -16721228, now seen corresponding path program 1 times [2020-10-26 21:28:50,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:28:50,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884458897] [2020-10-26 21:28:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:28:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:28:51,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:28:52,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:28:56,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:28:56,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 965 [2020-10-26 21:28:56,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:28:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5251 [2020-10-26 21:28:56,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:28:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-26 21:28:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:28:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-26 21:28:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 21:29:01,252 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-26 21:29:01,496 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-26 21:29:01,761 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-26 21:29:02,002 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-10-26 21:29:02,270 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-26 21:29:02,502 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-10-26 21:29:02,766 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-26 21:29:03,069 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-10-26 21:29:03,289 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-10-26 21:29:03,513 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2020-10-26 21:29:03,776 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-10-26 21:29:03,974 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2020-10-26 21:29:04,254 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-26 21:29:04,668 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-26 21:29:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:29:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:29:04,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:29:04,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:29:04,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:29:04,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:29:04,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 21:29:04,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:29:04,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:29:04,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:29:04,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:29:04,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:29:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:29:17,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884458897] [2020-10-26 21:29:17,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:29:17,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-26 21:29:17,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137648827] [2020-10-26 21:29:17,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-26 21:29:17,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:29:17,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-26 21:29:17,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-26 21:29:17,200 INFO L87 Difference]: Start difference. First operand 1319 states. Second operand 18 states. [2020-10-26 21:29:17,734 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-26 21:29:18,724 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 197 [2020-10-26 21:29:19,667 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 197 [2020-10-26 21:29:20,669 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 205 [2020-10-26 21:29:25,017 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 204 [2020-10-26 21:29:28,524 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 203 [2020-10-26 21:29:31,354 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-10-26 21:29:32,402 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-26 21:29:33,711 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 205 [2020-10-26 21:29:43,952 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 197 [2020-10-26 21:29:44,954 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-26 21:29:48,727 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-26 21:29:56,667 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 193 [2020-10-26 21:29:57,734 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 202 [2020-10-26 21:30:00,628 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 197 [2020-10-26 21:30:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:30:13,646 INFO L93 Difference]: Finished difference Result 3401 states and 6365 transitions. [2020-10-26 21:30:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-26 21:30:13,649 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 947 [2020-10-26 21:30:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:30:13,709 INFO L225 Difference]: With dead ends: 3401 [2020-10-26 21:30:13,710 INFO L226 Difference]: Without dead ends: 2020 [2020-10-26 21:30:13,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2020-10-26 21:30:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2020-10-26 21:30:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2020. [2020-10-26 21:30:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2020 states. [2020-10-26 21:30:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 3054 transitions. [2020-10-26 21:30:13,898 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 3054 transitions. Word has length 947 [2020-10-26 21:30:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:30:13,900 INFO L481 AbstractCegarLoop]: Abstraction has 2020 states and 3054 transitions. [2020-10-26 21:30:13,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-26 21:30:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 3054 transitions. [2020-10-26 21:30:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2020-10-26 21:30:13,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:30:13,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:30:13,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 21:30:13,943 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:30:13,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:30:13,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1731744843, now seen corresponding path program 1 times [2020-10-26 21:30:13,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:30:13,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074358225] [2020-10-26 21:30:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:30:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:19,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:19,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1037 [2020-10-26 21:30:19,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:30:19,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-26 21:30:19,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 21:30:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:30:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 21:30:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:19,714 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-26 21:30:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:30:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:19,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:19,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:30:19,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:30:19,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 21:30:19,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:19,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:30:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:30:19,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:30:19,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:30:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:19,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:20,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:20,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 21:30:20,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:30:20,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-26 21:30:20,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:30:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:30:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 21:30:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:30:21,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074358225] [2020-10-26 21:30:21,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:30:21,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 21:30:21,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993635991] [2020-10-26 21:30:21,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:30:21,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:30:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:30:21,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:30:21,258 INFO L87 Difference]: Start difference. First operand 2020 states and 3054 transitions. Second operand 7 states. [2020-10-26 21:30:21,561 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-26 21:30:22,909 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-26 21:30:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:30:45,749 INFO L93 Difference]: Finished difference Result 4487 states and 7526 transitions. [2020-10-26 21:30:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 21:30:45,750 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1017 [2020-10-26 21:30:45,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:30:45,769 INFO L225 Difference]: With dead ends: 4487 [2020-10-26 21:30:45,769 INFO L226 Difference]: Without dead ends: 3227 [2020-10-26 21:30:45,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 21:30:45,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2020-10-26 21:30:45,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3155. [2020-10-26 21:30:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3155 states. [2020-10-26 21:30:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4666 transitions. [2020-10-26 21:30:45,878 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4666 transitions. Word has length 1017 [2020-10-26 21:30:45,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:30:45,878 INFO L481 AbstractCegarLoop]: Abstraction has 3155 states and 4666 transitions. [2020-10-26 21:30:45,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:30:45,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4666 transitions. [2020-10-26 21:30:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2020-10-26 21:30:45,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:30:45,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:30:45,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 21:30:45,897 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:30:45,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:30:45,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2048424808, now seen corresponding path program 1 times [2020-10-26 21:30:45,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:30:45,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510609157] [2020-10-26 21:30:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:30:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:46,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:51,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:51,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1089 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5157 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-26 21:30:51,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:52,841 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-26 21:30:53,037 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-26 21:30:53,239 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-10-26 21:30:53,410 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-10-26 21:30:54,186 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-26 21:30:54,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:30:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:54,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:54,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:54,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:30:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:30:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:54,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:30:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:30:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:30:54,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 21:30:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:30:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 21:30:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:30:55,262 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-10-26 21:30:55,548 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2020-10-26 21:31:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:31:04,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510609157] [2020-10-26 21:31:04,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:31:04,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-26 21:31:04,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69605461] [2020-10-26 21:31:04,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-26 21:31:04,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:31:04,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-26 21:31:04,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-26 21:31:04,853 INFO L87 Difference]: Start difference. First operand 3155 states and 4666 transitions. Second operand 18 states. [2020-10-26 21:31:05,295 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-26 21:31:07,539 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 58 [2020-10-26 21:31:07,878 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2020-10-26 21:31:08,287 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2020-10-26 21:31:09,421 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 239 DAG size of output: 197 [2020-10-26 21:31:10,619 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 252 DAG size of output: 205 [2020-10-26 21:31:12,342 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 250 DAG size of output: 204 [2020-10-26 21:31:16,265 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 252 DAG size of output: 203 [2020-10-26 21:31:26,210 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2020-10-26 21:31:27,409 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 242 DAG size of output: 199 [2020-10-26 21:31:29,269 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 240 DAG size of output: 198 [2020-10-26 21:31:40,063 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 241 DAG size of output: 197 [2020-10-26 21:31:41,608 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 241 DAG size of output: 195 [2020-10-26 21:32:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:32:12,067 INFO L93 Difference]: Finished difference Result 8158 states and 13008 transitions. [2020-10-26 21:32:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-26 21:32:12,069 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1069 [2020-10-26 21:32:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:32:12,098 INFO L225 Difference]: With dead ends: 8158 [2020-10-26 21:32:12,098 INFO L226 Difference]: Without dead ends: 5763 [2020-10-26 21:32:12,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2020-10-26 21:32:12,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2020-10-26 21:32:12,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5710. [2020-10-26 21:32:12,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5710 states. [2020-10-26 21:32:12,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 7468 transitions. [2020-10-26 21:32:12,272 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 7468 transitions. Word has length 1069 [2020-10-26 21:32:12,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:32:12,274 INFO L481 AbstractCegarLoop]: Abstraction has 5710 states and 7468 transitions. [2020-10-26 21:32:12,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-26 21:32:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 7468 transitions. [2020-10-26 21:32:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1095 [2020-10-26 21:32:12,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:32:12,299 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:32:12,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 21:32:12,300 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:32:12,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:32:12,301 INFO L82 PathProgramCache]: Analyzing trace with hash 2099815942, now seen corresponding path program 1 times [2020-10-26 21:32:12,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:32:12,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681326619] [2020-10-26 21:32:12,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:32:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:32:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:32:13,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:32:17,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:32:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-26 21:32:17,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:32:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5160 [2020-10-26 21:32:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:32:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-26 21:32:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:32:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-26 21:32:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:32:20,783 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-10-26 21:32:21,147 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-26 21:32:21,459 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-10-26 21:32:21,781 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-10-26 21:32:22,082 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-10-26 21:32:22,356 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2020-10-26 21:32:22,610 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-10-26 21:32:22,857 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-10-26 21:32:23,141 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-26 21:32:23,395 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-10-26 21:32:23,594 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-10-26 21:32:23,866 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-26 21:32:24,283 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-26 21:32:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:32:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:32:24,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:32:24,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:32:24,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:32:24,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:32:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:32:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:32:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:32:24,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:32:24,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:32:24,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 21:32:24,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 21:32:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:32:25,281 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-26 21:32:25,492 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-26 21:32:25,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-26 21:32:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:32:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:32:25,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:32:25,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 21:32:25,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:32:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-26 21:32:25,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:32:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 21:32:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:32:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 21:32:25,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:32:26,065 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87