/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:24:20,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:24:20,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:24:20,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:24:20,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:24:20,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:24:20,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:24:20,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:24:20,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:24:20,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:24:20,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:24:20,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:24:20,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:24:20,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:24:20,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:24:20,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:24:20,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:24:20,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:24:20,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:24:20,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:24:20,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:24:20,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:24:20,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:24:20,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:24:20,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:24:20,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:24:20,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:24:20,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:24:20,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:24:20,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:24:20,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:24:20,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:24:20,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:24:20,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:24:20,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:24:20,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:24:20,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:24:20,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:24:20,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:24:20,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:24:20,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:24:20,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:24:20,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:24:20,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:24:20,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:24:20,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:24:20,423 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:24:20,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:24:20,423 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:24:20,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:24:20,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:24:20,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:24:20,425 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:24:20,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:24:20,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:24:20,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:24:20,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:24:20,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:24:20,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:24:20,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:24:20,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:24:20,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:24:20,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:24:20,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:24:20,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:24:20,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:24:20,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:24:20,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:24:20,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:24:20,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:24:20,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:24:20,892 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:24:20,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45.c [2020-10-28 12:24:21,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955719c8d/3340f13981984bfc93a7fac55360aaa6/FLAGc3be203a9 [2020-10-28 12:24:22,114 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:24:22,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label45.c [2020-10-28 12:24:22,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955719c8d/3340f13981984bfc93a7fac55360aaa6/FLAGc3be203a9 [2020-10-28 12:24:22,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/955719c8d/3340f13981984bfc93a7fac55360aaa6 [2020-10-28 12:24:22,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:24:22,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:24:22,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:24:22,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:24:22,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:24:22,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:24:22" (1/1) ... [2020-10-28 12:24:22,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8a9bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:22, skipping insertion in model container [2020-10-28 12:24:22,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:24:22" (1/1) ... [2020-10-28 12:24:22,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:24:22,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:24:24,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:24:24,298 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:24:25,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:24:25,094 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:24:25,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25 WrapperNode [2020-10-28 12:24:25,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:24:25,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:24:25,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:24:25,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:24:25,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... [2020-10-28 12:24:25,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:24:25,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:24:25,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:24:25,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:24:25,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:24:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:24:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:24:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:24:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:24:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 12:24:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-28 12:24:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-28 12:24:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:24:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:24:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 12:24:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-28 12:24:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:24:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:24:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:24:33,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:24:33,209 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:24:33,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:24:33 BoogieIcfgContainer [2020-10-28 12:24:33,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:24:33,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:24:33,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:24:33,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:24:33,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:24:22" (1/3) ... [2020-10-28 12:24:33,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954eddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:24:33, skipping insertion in model container [2020-10-28 12:24:33,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:24:25" (2/3) ... [2020-10-28 12:24:33,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954eddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:24:33, skipping insertion in model container [2020-10-28 12:24:33,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:24:33" (3/3) ... [2020-10-28 12:24:33,224 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem12_label45.c [2020-10-28 12:24:33,237 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:24:33,245 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:24:33,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:24:33,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:24:33,298 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:24:33,299 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:24:33,299 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:24:33,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:24:33,299 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:24:33,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:24:33,299 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:24:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states. [2020-10-28 12:24:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 12:24:33,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:24:33,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:24:33,364 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:24:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:24:33,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1957333436, now seen corresponding path program 1 times [2020-10-28 12:24:33,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:24:33,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682459320] [2020-10-28 12:24:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:24:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:24:33,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:34,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:24:34,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-28 12:24:34,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:24:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-28 12:24:34,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:24:34,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:24:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:24:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:24:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 12:24:34,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:24:34,675 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:24:34,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:24:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:24:34,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:24:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:24:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:24:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:24:34,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:24:34,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:24:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:24:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:24:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:24:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:24:34,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:24:34,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682459320] [2020-10-28 12:24:34,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:24:34,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:24:34,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556135301] [2020-10-28 12:24:34,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:24:34,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:24:34,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:24:34,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:24:34,857 INFO L87 Difference]: Start difference. First operand 843 states. Second operand 4 states. [2020-10-28 12:24:35,038 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-28 12:24:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:24:50,509 INFO L93 Difference]: Finished difference Result 2492 states and 4750 transitions. [2020-10-28 12:24:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:24:50,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-28 12:24:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:24:50,550 INFO L225 Difference]: With dead ends: 2492 [2020-10-28 12:24:50,550 INFO L226 Difference]: Without dead ends: 1569 [2020-10-28 12:24:50,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:24:50,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2020-10-28 12:24:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1554. [2020-10-28 12:24:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1554 states. [2020-10-28 12:24:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2470 transitions. [2020-10-28 12:24:50,735 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2470 transitions. Word has length 58 [2020-10-28 12:24:50,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:24:50,736 INFO L481 AbstractCegarLoop]: Abstraction has 1554 states and 2470 transitions. [2020-10-28 12:24:50,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:24:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2470 transitions. [2020-10-28 12:24:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-28 12:24:50,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:24:50,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:24:50,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:24:50,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:24:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:24:50,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1185181932, now seen corresponding path program 1 times [2020-10-28 12:24:50,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:24:50,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987421421] [2020-10-28 12:24:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:24:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:24:50,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:50,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:51,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:52,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:24:52,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 12:24:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:24:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2043 [2020-10-28 12:24:52,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:24:52,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:24:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:24:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:24:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:24:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:24:53,009 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:24:53,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:24:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:24:53,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:53,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:24:53,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:24:53,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:24:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:24:53,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:24:53,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:24:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:24:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:24:53,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:24:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:24:53,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:24:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:24:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:24:53,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:24:53,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:24:53,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:24:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 12:24:53,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:24:53,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:24:53,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:24:53,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:24:53,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:24:53,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:24:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:24:53,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987421421] [2020-10-28 12:24:53,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:24:53,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:24:53,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303814957] [2020-10-28 12:24:53,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:24:53,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:24:53,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:24:53,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:24:53,351 INFO L87 Difference]: Start difference. First operand 1554 states and 2470 transitions. Second operand 7 states. [2020-10-28 12:24:53,506 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:25:10,706 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:25:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:25:14,324 INFO L93 Difference]: Finished difference Result 4775 states and 7604 transitions. [2020-10-28 12:25:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:25:14,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2020-10-28 12:25:14,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:25:14,350 INFO L225 Difference]: With dead ends: 4775 [2020-10-28 12:25:14,351 INFO L226 Difference]: Without dead ends: 3227 [2020-10-28 12:25:14,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:25:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2020-10-28 12:25:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3142. [2020-10-28 12:25:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3142 states. [2020-10-28 12:25:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 4463 transitions. [2020-10-28 12:25:14,489 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 4463 transitions. Word has length 130 [2020-10-28 12:25:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:25:14,490 INFO L481 AbstractCegarLoop]: Abstraction has 3142 states and 4463 transitions. [2020-10-28 12:25:14,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:25:14,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 4463 transitions. [2020-10-28 12:25:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-28 12:25:14,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:25:14,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:25:14,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:25:14,494 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:25:14,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:25:14,495 INFO L82 PathProgramCache]: Analyzing trace with hash -17341414, now seen corresponding path program 1 times [2020-10-28 12:25:14,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:25:14,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753760307] [2020-10-28 12:25:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:25:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:14,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:14,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:15,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:15,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 12:25:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:25:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-28 12:25:15,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:15,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:25:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:25:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:25:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:25:15,905 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:25:15,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:25:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:15,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:15,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:15,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:25:15,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:25:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:25:15,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:15,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:15,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:25:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:25:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:25:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:25:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:25:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:16,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:16,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:16,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:25:16,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:25:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 12:25:16,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:16,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:25:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:25:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:25:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:25:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:25:16,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753760307] [2020-10-28 12:25:16,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:25:16,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:25:16,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813130766] [2020-10-28 12:25:16,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:25:16,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:25:16,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:25:16,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:25:16,269 INFO L87 Difference]: Start difference. First operand 3142 states and 4463 transitions. Second operand 7 states. [2020-10-28 12:25:16,441 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:25:19,324 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:25:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:25:39,352 INFO L93 Difference]: Finished difference Result 9650 states and 13883 transitions. [2020-10-28 12:25:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:25:39,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-10-28 12:25:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:25:39,405 INFO L225 Difference]: With dead ends: 9650 [2020-10-28 12:25:39,406 INFO L226 Difference]: Without dead ends: 6514 [2020-10-28 12:25:39,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:25:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2020-10-28 12:25:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 6389. [2020-10-28 12:25:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6389 states. [2020-10-28 12:25:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6389 states to 6389 states and 8545 transitions. [2020-10-28 12:25:39,667 INFO L78 Accepts]: Start accepts. Automaton has 6389 states and 8545 transitions. Word has length 137 [2020-10-28 12:25:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:25:39,671 INFO L481 AbstractCegarLoop]: Abstraction has 6389 states and 8545 transitions. [2020-10-28 12:25:39,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:25:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 6389 states and 8545 transitions. [2020-10-28 12:25:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-28 12:25:39,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:25:39,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:25:39,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:25:39,681 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:25:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:25:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1589016726, now seen corresponding path program 1 times [2020-10-28 12:25:39,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:25:39,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422698105] [2020-10-28 12:25:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:25:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:41,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:25:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:25:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1383 [2020-10-28 12:25:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:41,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:25:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:25:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 12:25:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:25:41,330 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:25:41,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:25:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:41,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:41,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:25:41,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:25:41,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:25:41,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:41,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:25:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:25:41,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:25:41,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:25:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:25:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:25:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:25:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:25:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:25:41,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:25:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-28 12:25:41,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:25:41,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:25:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:25:41,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:25:41,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 12:25:41,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:25:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:25:41,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422698105] [2020-10-28 12:25:41,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:25:41,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:25:41,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698760931] [2020-10-28 12:25:41,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:25:41,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:25:41,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:25:41,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:25:41,829 INFO L87 Difference]: Start difference. First operand 6389 states and 8545 transitions. Second operand 7 states. [2020-10-28 12:25:42,011 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:25:55,552 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:26:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:26:05,713 INFO L93 Difference]: Finished difference Result 18745 states and 25656 transitions. [2020-10-28 12:26:05,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:26:05,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-28 12:26:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:26:05,793 INFO L225 Difference]: With dead ends: 18745 [2020-10-28 12:26:05,794 INFO L226 Difference]: Without dead ends: 12362 [2020-10-28 12:26:05,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:26:05,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12362 states. [2020-10-28 12:26:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12362 to 12161. [2020-10-28 12:26:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12161 states. [2020-10-28 12:26:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12161 states to 12161 states and 15109 transitions. [2020-10-28 12:26:06,218 INFO L78 Accepts]: Start accepts. Automaton has 12161 states and 15109 transitions. Word has length 171 [2020-10-28 12:26:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:26:06,221 INFO L481 AbstractCegarLoop]: Abstraction has 12161 states and 15109 transitions. [2020-10-28 12:26:06,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:26:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 12161 states and 15109 transitions. [2020-10-28 12:26:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-28 12:26:06,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:26:06,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:26:06,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:26:06,229 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:26:06,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:26:06,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1532245764, now seen corresponding path program 1 times [2020-10-28 12:26:06,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:26:06,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59416742] [2020-10-28 12:26:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:26:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:06,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:08,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:08,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2271 [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:26:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:26:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:26:08,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:26:08,775 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:26:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:26:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:08,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:08,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:08,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:26:08,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:26:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:26:08,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:08,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:26:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:26:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:26:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:26:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:26:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:08,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:09,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:09,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 12:26:09,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:26:09,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-28 12:26:09,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:09,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:26:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:26:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 12:26:09,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:26:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:26:09,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59416742] [2020-10-28 12:26:09,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:26:09,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:26:09,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425582054] [2020-10-28 12:26:09,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:26:09,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:26:09,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:26:09,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:26:09,699 INFO L87 Difference]: Start difference. First operand 12161 states and 15109 transitions. Second operand 7 states. [2020-10-28 12:26:09,903 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-28 12:26:12,745 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-28 12:26:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:26:31,118 INFO L93 Difference]: Finished difference Result 19428 states and 25603 transitions. [2020-10-28 12:26:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:26:31,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-10-28 12:26:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:26:31,214 INFO L225 Difference]: With dead ends: 19428 [2020-10-28 12:26:31,215 INFO L226 Difference]: Without dead ends: 12768 [2020-10-28 12:26:31,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:26:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12768 states. [2020-10-28 12:26:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12768 to 12315. [2020-10-28 12:26:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12315 states. [2020-10-28 12:26:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12315 states to 12315 states and 15378 transitions. [2020-10-28 12:26:31,740 INFO L78 Accepts]: Start accepts. Automaton has 12315 states and 15378 transitions. Word has length 206 [2020-10-28 12:26:31,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:26:31,741 INFO L481 AbstractCegarLoop]: Abstraction has 12315 states and 15378 transitions. [2020-10-28 12:26:31,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:26:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 12315 states and 15378 transitions. [2020-10-28 12:26:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-28 12:26:31,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:26:31,746 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:26:31,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:26:31,747 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:26:31,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:26:31,748 INFO L82 PathProgramCache]: Analyzing trace with hash -52939590, now seen corresponding path program 1 times [2020-10-28 12:26:31,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:26:31,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695020918] [2020-10-28 12:26:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:26:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:31,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:32,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:32,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:33,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:33,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-28 12:26:33,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:26:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1724 [2020-10-28 12:26:33,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:33,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 12:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 12:26:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:26:33,784 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:26:33,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:26:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:33,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:33,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:26:33,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:26:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:26:33,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:33,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:26:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:26:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:26:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:26:33,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:26:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:33,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:33,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 12:26:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:26:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:26:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:33,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:26:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:26:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:26:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:26:33,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 12:26:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:26:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:26:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:26:34,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 12:26:34,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:26:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-28 12:26:34,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:26:34,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:26:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:26:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:26:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 12:26:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:26:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:26:34,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695020918] [2020-10-28 12:26:34,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:26:34,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:26:34,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746466146] [2020-10-28 12:26:34,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:26:34,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:26:34,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:26:34,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:26:34,475 INFO L87 Difference]: Start difference. First operand 12315 states and 15378 transitions. Second operand 7 states. [2020-10-28 12:26:35,306 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:27:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:27:00,580 INFO L93 Difference]: Finished difference Result 23428 states and 30934 transitions. [2020-10-28 12:27:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:27:00,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-28 12:27:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:27:00,621 INFO L225 Difference]: With dead ends: 23428 [2020-10-28 12:27:00,622 INFO L226 Difference]: Without dead ends: 9425 [2020-10-28 12:27:00,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:27:00,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9425 states. [2020-10-28 12:27:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9425 to 8939. [2020-10-28 12:27:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8939 states. [2020-10-28 12:27:00,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 10806 transitions. [2020-10-28 12:27:00,887 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 10806 transitions. Word has length 233 [2020-10-28 12:27:00,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:27:00,888 INFO L481 AbstractCegarLoop]: Abstraction has 8939 states and 10806 transitions. [2020-10-28 12:27:00,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:27:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 10806 transitions. [2020-10-28 12:27:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-28 12:27:00,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:27:00,894 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:27:00,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:27:00,894 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:27:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:27:00,895 INFO L82 PathProgramCache]: Analyzing trace with hash 369093108, now seen corresponding path program 1 times [2020-10-28 12:27:00,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:27:00,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154368293] [2020-10-28 12:27:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:27:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:01,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:02,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:02,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:02,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-28 12:27:02,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:27:02,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1740 [2020-10-28 12:27:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:02,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:27:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-28 12:27:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-28 12:27:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:27:02,999 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:27:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:27:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:03,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:03,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:03,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:27:03,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:03,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:27:03,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:03,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:27:03,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:27:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:27:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:27:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:03,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:03,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:03,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:27:03,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-28 12:27:03,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:27:03,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-28 12:27:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:03,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:03,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:03,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:03,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 12:27:03,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:27:03,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 12:27:03,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:03,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:03,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:27:03,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:27:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:27:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-28 12:27:03,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154368293] [2020-10-28 12:27:03,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:27:03,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:27:03,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275090499] [2020-10-28 12:27:03,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:27:03,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:27:03,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:27:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:27:03,756 INFO L87 Difference]: Start difference. First operand 8939 states and 10806 transitions. Second operand 7 states. [2020-10-28 12:27:05,132 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:27:05,363 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:27:46,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:27:46,316 INFO L93 Difference]: Finished difference Result 33203 states and 42995 transitions. [2020-10-28 12:27:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:27:46,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 292 [2020-10-28 12:27:46,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:27:46,429 INFO L225 Difference]: With dead ends: 33203 [2020-10-28 12:27:46,429 INFO L226 Difference]: Without dead ends: 25037 [2020-10-28 12:27:46,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:27:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25037 states. [2020-10-28 12:27:47,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25037 to 23498. [2020-10-28 12:27:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23498 states. [2020-10-28 12:27:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23498 states to 23498 states and 29573 transitions. [2020-10-28 12:27:47,188 INFO L78 Accepts]: Start accepts. Automaton has 23498 states and 29573 transitions. Word has length 292 [2020-10-28 12:27:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:27:47,189 INFO L481 AbstractCegarLoop]: Abstraction has 23498 states and 29573 transitions. [2020-10-28 12:27:47,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:27:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 23498 states and 29573 transitions. [2020-10-28 12:27:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-28 12:27:47,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:27:47,330 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:27:47,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:27:47,330 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:27:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:27:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1019794718, now seen corresponding path program 1 times [2020-10-28 12:27:47,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:27:47,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212381864] [2020-10-28 12:27:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:27:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:47,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:48,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:48,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-28 12:27:48,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-28 12:27:48,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:48,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:27:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 297 [2020-10-28 12:27:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 12:27:48,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:27:48,449 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:27:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:27:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:48,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:48,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:48,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:27:48,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:48,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:27:48,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:48,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:27:48,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:27:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:27:48,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:27:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:48,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:48,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 12:27:48,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:27:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:48,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:27:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:27:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:27:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-28 12:27:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:27:48,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:27:48,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:27:48,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:27:48,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:27:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 12:27:48,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:27:48,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:27:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:27:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:27:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:27:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:27:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2020-10-28 12:27:49,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212381864] [2020-10-28 12:27:49,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:27:49,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:27:49,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309117053] [2020-10-28 12:27:49,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:27:49,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:27:49,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:27:49,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:27:49,132 INFO L87 Difference]: Start difference. First operand 23498 states and 29573 transitions. Second operand 5 states. [2020-10-28 12:27:51,513 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:28:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:28:10,964 INFO L93 Difference]: Finished difference Result 55626 states and 73569 transitions. [2020-10-28 12:28:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:28:10,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 343 [2020-10-28 12:28:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:28:11,096 INFO L225 Difference]: With dead ends: 55626 [2020-10-28 12:28:11,097 INFO L226 Difference]: Without dead ends: 32901 [2020-10-28 12:28:11,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:28:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32901 states. [2020-10-28 12:28:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32901 to 32876. [2020-10-28 12:28:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32876 states. [2020-10-28 12:28:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32876 states to 32876 states and 41069 transitions. [2020-10-28 12:28:12,088 INFO L78 Accepts]: Start accepts. Automaton has 32876 states and 41069 transitions. Word has length 343 [2020-10-28 12:28:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:28:12,088 INFO L481 AbstractCegarLoop]: Abstraction has 32876 states and 41069 transitions. [2020-10-28 12:28:12,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:28:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 32876 states and 41069 transitions. [2020-10-28 12:28:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-28 12:28:12,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:28:12,118 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:28:12,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:28:12,118 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:28:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:28:12,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1698858482, now seen corresponding path program 1 times [2020-10-28 12:28:12,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:28:12,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195545639] [2020-10-28 12:28:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:28:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:28:12,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:28:12,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:28:14,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:28:14,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-28 12:28:14,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:28:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2766 [2020-10-28 12:28:14,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:28:14,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:28:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:28:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-28 12:28:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-28 12:28:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0