/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:59:48,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:59:48,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:59:48,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:59:48,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:59:48,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:59:48,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:59:48,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:59:48,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:59:48,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:59:48,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:59:48,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:59:48,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:59:48,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:59:48,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:59:48,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:59:48,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:59:48,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:59:48,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:59:48,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:59:48,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:59:48,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:59:48,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:59:48,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:59:48,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:59:48,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:59:48,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:59:48,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:59:48,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:59:48,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:59:48,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:59:48,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:59:48,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:59:48,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:59:48,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:59:48,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:59:48,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:59:48,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:59:48,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:59:48,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:59:48,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:59:48,187 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 [2020-10-14 19:59:48,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:59:48,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:59:48,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:59:48,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:59:48,227 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:59:48,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:59:48,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:59:48,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:59:48,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:59:48,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:59:48,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:59:48,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:59:48,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:59:48,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:59:48,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:59:48,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:59:48,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:59:48,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:59:48,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:59:48,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:59:48,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:59:48,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:59:48,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:59:48,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:59:48,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:59:48,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:59:48,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:59:48,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:59:48,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:59:48,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:59:48,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:59:48,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:59:48,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:59:48,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:59:48,542 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:59:48,543 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label37.c [2020-10-14 19:59:48,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eb8b53af/845b9c18dc9d4769983a4f46679f242c/FLAG131f88839 [2020-10-14 19:59:49,477 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:59:49,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label37.c [2020-10-14 19:59:49,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eb8b53af/845b9c18dc9d4769983a4f46679f242c/FLAG131f88839 [2020-10-14 19:59:49,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eb8b53af/845b9c18dc9d4769983a4f46679f242c [2020-10-14 19:59:49,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:59:49,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:59:49,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:59:49,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:59:49,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:59:49,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:59:49" (1/1) ... [2020-10-14 19:59:49,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589fe6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:49, skipping insertion in model container [2020-10-14 19:59:49,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:59:49" (1/1) ... [2020-10-14 19:59:49,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:59:50,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:59:52,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:59:52,379 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:59:53,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:59:53,460 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:59:53,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53 WrapperNode [2020-10-14 19:59:53,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:59:53,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:59:53,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:59:53,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:59:53,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (1/1) ... [2020-10-14 19:59:53,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:59:53,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:59:53,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:59:53,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:59:53,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (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 [2020-10-14 19:59:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:59:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:59:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:59:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:59:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:59:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:59:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 19:59:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:59:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:59:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:59:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:59:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:59:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 19:59:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:59:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:59:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:59:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:59:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:59:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:00:01,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:00:01,197 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:00:01,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:01 BoogieIcfgContainer [2020-10-14 20:00:01,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:00:01,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:00:01,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:00:01,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:00:01,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:59:49" (1/3) ... [2020-10-14 20:00:01,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aadd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:01, skipping insertion in model container [2020-10-14 20:00:01,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:53" (2/3) ... [2020-10-14 20:00:01,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60aadd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:01, skipping insertion in model container [2020-10-14 20:00:01,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:01" (3/3) ... [2020-10-14 20:00:01,218 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label37.c [2020-10-14 20:00:01,231 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:00:01,244 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:00:01,260 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:00:01,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:00:01,293 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:00:01,293 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:00:01,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:00:01,293 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:00:01,294 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:00:01,294 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:00:01,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:00:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-14 20:00:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2020-10-14 20:00:01,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:00:01,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:00:01,414 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:00:01,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:00:01,421 INFO L82 PathProgramCache]: Analyzing trace with hash -23474593, now seen corresponding path program 1 times [2020-10-14 20:00:01,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:00:01,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474700522] [2020-10-14 20:00:01,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:00:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:04,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:07,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 970 [2020-10-14 20:00:07,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:00:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-10-14 20:00:07,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:07,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 20:00:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:00:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 964 [2020-10-14 20:00:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:00:08,727 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:00:08,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:00:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:08,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:08,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:08,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:00:08,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 20:00:08,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:08,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:08,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:00:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:00:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:00:09,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474700522] [2020-10-14 20:00:09,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:00:09,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 20:00:09,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073802304] [2020-10-14 20:00:09,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:00:09,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:00:09,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:00:09,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:00:09,902 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 5 states. [2020-10-14 20:00:10,091 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:10,489 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:00:29,472 INFO L93 Difference]: Finished difference Result 4865 states and 9186 transitions. [2020-10-14 20:00:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:00:29,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 954 [2020-10-14 20:00:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:00:29,530 INFO L225 Difference]: With dead ends: 4865 [2020-10-14 20:00:29,530 INFO L226 Difference]: Without dead ends: 3482 [2020-10-14 20:00:29,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:00:29,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-10-14 20:00:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3395. [2020-10-14 20:00:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3395 states. [2020-10-14 20:00:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 5481 transitions. [2020-10-14 20:00:29,779 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 5481 transitions. Word has length 954 [2020-10-14 20:00:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:00:29,785 INFO L479 AbstractCegarLoop]: Abstraction has 3395 states and 5481 transitions. [2020-10-14 20:00:29,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:00:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 5481 transitions. [2020-10-14 20:00:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2020-10-14 20:00:29,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:00:29,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:00:29,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:00:29,828 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:00:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:00:29,829 INFO L82 PathProgramCache]: Analyzing trace with hash 988225482, now seen corresponding path program 1 times [2020-10-14 20:00:29,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:00:29,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384348272] [2020-10-14 20:00:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:00:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:29,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:31,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:34,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:34,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 980 [2020-10-14 20:00:34,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:00:34,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 20:00:34,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:34,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:00:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 20:00:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 961 [2020-10-14 20:00:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:36,096 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:00:36,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:00:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:36,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:36,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:00:36,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:36,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:00:36,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:36,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:00:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:36,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:00:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:36,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:00:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:36,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 20:00:36,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 20:00:36,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:36,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:00:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 20:00:36,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:00:37,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384348272] [2020-10-14 20:00:37,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:00:37,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:00:37,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668223535] [2020-10-14 20:00:37,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:00:37,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:00:37,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:00:37,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:00:37,109 INFO L87 Difference]: Start difference. First operand 3395 states and 5481 transitions. Second operand 6 states. [2020-10-14 20:00:37,319 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:54,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:00:54,352 INFO L93 Difference]: Finished difference Result 10043 states and 16433 transitions. [2020-10-14 20:00:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:00:54,355 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 962 [2020-10-14 20:00:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:00:54,393 INFO L225 Difference]: With dead ends: 10043 [2020-10-14 20:00:54,394 INFO L226 Difference]: Without dead ends: 6654 [2020-10-14 20:00:54,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:00:54,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2020-10-14 20:00:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 6590. [2020-10-14 20:00:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2020-10-14 20:00:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 10203 transitions. [2020-10-14 20:00:54,619 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 10203 transitions. Word has length 962 [2020-10-14 20:00:54,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:00:54,621 INFO L479 AbstractCegarLoop]: Abstraction has 6590 states and 10203 transitions. [2020-10-14 20:00:54,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:00:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 10203 transitions. [2020-10-14 20:00:54,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-10-14 20:00:54,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:00:54,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:00:54,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:00:54,660 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:00:54,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:00:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1231271660, now seen corresponding path program 1 times [2020-10-14 20:00:54,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:00:54,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123029281] [2020-10-14 20:00:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:00:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:56,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:59,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:59,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 987 [2020-10-14 20:00:59,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:00:59,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5121 [2020-10-14 20:00:59,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:59,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:59,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 20:00:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:00:59,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 981 [2020-10-14 20:00:59,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:01:00,745 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:01:00,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:01:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:00,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:00,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:00,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:01:00,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:00,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 20:01:00,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:00,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:01:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:00,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:01:00,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:01:00,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:01:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:00,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:00,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 20:01:00,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:01:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 20:01:00,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:00,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 20:01:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:01:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 20:01:01,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123029281] [2020-10-14 20:01:01,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:01:01,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:01:01,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242644574] [2020-10-14 20:01:01,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:01:01,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:01:01,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:01:01,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:01:01,712 INFO L87 Difference]: Start difference. First operand 6590 states and 10203 transitions. Second operand 6 states. [2020-10-14 20:01:01,860 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:01:16,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:01:16,609 INFO L93 Difference]: Finished difference Result 19594 states and 31110 transitions. [2020-10-14 20:01:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:01:16,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 969 [2020-10-14 20:01:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:01:16,693 INFO L225 Difference]: With dead ends: 19594 [2020-10-14 20:01:16,693 INFO L226 Difference]: Without dead ends: 13010 [2020-10-14 20:01:16,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:01:16,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13010 states. [2020-10-14 20:01:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13010 to 12967. [2020-10-14 20:01:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12967 states. [2020-10-14 20:01:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12967 states to 12967 states and 18952 transitions. [2020-10-14 20:01:17,248 INFO L78 Accepts]: Start accepts. Automaton has 12967 states and 18952 transitions. Word has length 969 [2020-10-14 20:01:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:01:17,249 INFO L479 AbstractCegarLoop]: Abstraction has 12967 states and 18952 transitions. [2020-10-14 20:01:17,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:01:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12967 states and 18952 transitions. [2020-10-14 20:01:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2020-10-14 20:01:17,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:01:17,299 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:01:17,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:01:17,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:01:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:01:17,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1983015171, now seen corresponding path program 1 times [2020-10-14 20:01:17,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:01:17,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472312597] [2020-10-14 20:01:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:01:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:21,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:22,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:01:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 20:01:22,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:22,749 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:01:22,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:01:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:22,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:22,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:01:22,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:22,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:01:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:22,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 20:01:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 20:01:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 20:01:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:22,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 20:01:22,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 20:01:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:22,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 20:01:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 20:01:23,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472312597] [2020-10-14 20:01:23,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:01:23,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:01:23,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673511688] [2020-10-14 20:01:23,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:01:23,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:01:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:01:23,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:01:23,486 INFO L87 Difference]: Start difference. First operand 12967 states and 18952 transitions. Second operand 7 states. [2020-10-14 20:01:23,626 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:01:24,449 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:01:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:01:40,262 INFO L93 Difference]: Finished difference Result 26418 states and 39001 transitions. [2020-10-14 20:01:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:01:40,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 990 [2020-10-14 20:01:40,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:01:40,308 INFO L225 Difference]: With dead ends: 26418 [2020-10-14 20:01:40,308 INFO L226 Difference]: Without dead ends: 13457 [2020-10-14 20:01:40,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:01:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2020-10-14 20:01:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 13265. [2020-10-14 20:01:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13265 states. [2020-10-14 20:01:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13265 states to 13265 states and 17886 transitions. [2020-10-14 20:01:40,656 INFO L78 Accepts]: Start accepts. Automaton has 13265 states and 17886 transitions. Word has length 990 [2020-10-14 20:01:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:01:40,656 INFO L479 AbstractCegarLoop]: Abstraction has 13265 states and 17886 transitions. [2020-10-14 20:01:40,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:01:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 13265 states and 17886 transitions. [2020-10-14 20:01:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2020-10-14 20:01:40,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:01:40,703 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:01:40,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:01:40,704 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:01:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:01:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash 35939576, now seen corresponding path program 1 times [2020-10-14 20:01:40,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:01:40,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417171290] [2020-10-14 20:01:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:01:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:40,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:45,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1020 [2020-10-14 20:01:45,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:01:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-14 20:01:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:45,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:01:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:01:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 20:01:45,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:01:46,259 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:01:46,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:01:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:46,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:46,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:01:46,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:46,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 20:01:46,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:46,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:46,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:01:46,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:46,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:01:46,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:01:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 20:01:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 20:01:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:46,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 20:01:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:46,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 20:01:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:46,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:46,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 20:01:46,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 20:01:46,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:46,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 20:01:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 20:01:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:46,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:46,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:46,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 20:01:46,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:01:46,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:46,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:01:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 20:01:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:01:46,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 40 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 20:01:47,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417171290] [2020-10-14 20:01:47,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:01:47,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:01:47,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528820874] [2020-10-14 20:01:47,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:01:47,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:01:47,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:01:47,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:01:47,054 INFO L87 Difference]: Start difference. First operand 13265 states and 17886 transitions. Second operand 7 states. [2020-10-14 20:01:47,189 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:02:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:02:04,957 INFO L93 Difference]: Finished difference Result 40420 states and 55615 transitions. [2020-10-14 20:02:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:02:04,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 998 [2020-10-14 20:02:04,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:02:05,045 INFO L225 Difference]: With dead ends: 40420 [2020-10-14 20:02:05,046 INFO L226 Difference]: Without dead ends: 27161 [2020-10-14 20:02:05,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 20:02:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27161 states. [2020-10-14 20:02:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27161 to 27043. [2020-10-14 20:02:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27043 states. [2020-10-14 20:02:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27043 states to 27043 states and 37001 transitions. [2020-10-14 20:02:06,063 INFO L78 Accepts]: Start accepts. Automaton has 27043 states and 37001 transitions. Word has length 998 [2020-10-14 20:02:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:02:06,064 INFO L479 AbstractCegarLoop]: Abstraction has 27043 states and 37001 transitions. [2020-10-14 20:02:06,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:02:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand 27043 states and 37001 transitions. [2020-10-14 20:02:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2020-10-14 20:02:06,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:02:06,149 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:02:06,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:02:06,149 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:02:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:02:06,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1347647855, now seen corresponding path program 1 times [2020-10-14 20:02:06,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:02:06,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393556241] [2020-10-14 20:02:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:02:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:06,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:07,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:11,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:11,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1017 [2020-10-14 20:02:11,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:02:11,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5150 [2020-10-14 20:02:11,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:11,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:02:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 20:02:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 962 [2020-10-14 20:02:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:12,268 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:02:12,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:02:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:12,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:12,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:02:12,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:12,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:12,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:02:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:12,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:12,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:12,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 20:02:12,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:12,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 20:02:12,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:12,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 20:02:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:12,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:02:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 20:02:12,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 20:02:13,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393556241] [2020-10-14 20:02:13,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:02:13,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:02:13,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929319213] [2020-10-14 20:02:13,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:02:13,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:02:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:02:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:02:13,466 INFO L87 Difference]: Start difference. First operand 27043 states and 37001 transitions. Second operand 6 states. [2020-10-14 20:02:13,608 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:02:14,096 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:02:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:02:37,661 INFO L93 Difference]: Finished difference Result 71349 states and 103214 transitions. [2020-10-14 20:02:37,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:02:37,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 997 [2020-10-14 20:02:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:02:37,815 INFO L225 Difference]: With dead ends: 71349 [2020-10-14 20:02:37,816 INFO L226 Difference]: Without dead ends: 44312 [2020-10-14 20:02:37,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:02:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44312 states. [2020-10-14 20:02:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44312 to 44121. [2020-10-14 20:02:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44121 states. [2020-10-14 20:02:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44121 states to 44121 states and 62680 transitions. [2020-10-14 20:02:40,849 INFO L78 Accepts]: Start accepts. Automaton has 44121 states and 62680 transitions. Word has length 997 [2020-10-14 20:02:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:02:40,850 INFO L479 AbstractCegarLoop]: Abstraction has 44121 states and 62680 transitions. [2020-10-14 20:02:40,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:02:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 44121 states and 62680 transitions. [2020-10-14 20:02:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2020-10-14 20:02:40,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:02:40,931 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:02:40,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:02:40,932 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:02:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:02:40,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1065969821, now seen corresponding path program 1 times [2020-10-14 20:02:40,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:02:40,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476229331] [2020-10-14 20:02:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:02:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:41,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:41,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:46,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:46,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1058 [2020-10-14 20:02:46,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:02:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5124 [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 20:02:46,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:46,396 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:02:46,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:02:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:46,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:46,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:02:46,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:46,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:02:46,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:46,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:02:46,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:46,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:02:46,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:46,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:02:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:46,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:46,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 20:02:46,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 20:02:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:46,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:02:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:02:46,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 20:02:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:46,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 20:02:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:46,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:46,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:02:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:02:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 20:02:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:46,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 20:02:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:46,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:46,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:46,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 20:02:46,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:46,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 20:02:46,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:46,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 20:02:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 76 proven. 50 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 20:02:47,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476229331] [2020-10-14 20:02:47,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:02:47,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:02:47,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374258618] [2020-10-14 20:02:47,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:02:47,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:02:47,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:02:47,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:02:47,265 INFO L87 Difference]: Start difference. First operand 44121 states and 62680 transitions. Second operand 8 states. [2020-10-14 20:02:47,398 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:02:48,335 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:03:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:03:05,474 INFO L93 Difference]: Finished difference Result 134918 states and 209118 transitions. [2020-10-14 20:03:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:03:05,479 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1036 [2020-10-14 20:03:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:03:06,329 INFO L225 Difference]: With dead ends: 134918 [2020-10-14 20:03:06,329 INFO L226 Difference]: Without dead ends: 90803 [2020-10-14 20:03:06,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-14 20:03:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90803 states. [2020-10-14 20:03:08,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90803 to 90194. [2020-10-14 20:03:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90194 states. [2020-10-14 20:03:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90194 states to 90194 states and 130507 transitions. [2020-10-14 20:03:08,471 INFO L78 Accepts]: Start accepts. Automaton has 90194 states and 130507 transitions. Word has length 1036 [2020-10-14 20:03:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:03:08,471 INFO L479 AbstractCegarLoop]: Abstraction has 90194 states and 130507 transitions. [2020-10-14 20:03:08,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:03:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 90194 states and 130507 transitions. [2020-10-14 20:03:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2020-10-14 20:03:08,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:03:08,673 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:03:08,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:03:08,673 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:03:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:03:08,674 INFO L82 PathProgramCache]: Analyzing trace with hash -382190099, now seen corresponding path program 1 times [2020-10-14 20:03:08,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:03:08,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725606965] [2020-10-14 20:03:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:03:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:08,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:09,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1084 [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:13,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:03:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 20:03:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 20:03:13,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:14,071 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:03:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:03:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:14,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:03:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:03:14,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:03:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:14,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:03:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:03:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 20:03:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:14,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 20:03:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:14,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:14,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 20:03:14,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 20:03:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:14,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:03:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:03:14,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 20:03:14,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:03:14,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725606965] [2020-10-14 20:03:14,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:03:14,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:03:14,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76532434] [2020-10-14 20:03:14,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:03:14,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:03:14,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:03:14,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:03:14,948 INFO L87 Difference]: Start difference. First operand 90194 states and 130507 transitions. Second operand 7 states. [2020-10-14 20:03:15,093 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:03:16,450 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130