/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=BIGGEST --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/Problem05_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:53:11,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:53:11,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:53:11,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:53:11,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:53:11,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:53:11,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:53:11,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:53:11,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:53:11,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:53:11,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:53:11,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:53:11,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:53:11,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:53:11,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:53:11,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:53:11,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:53:11,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:53:11,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:53:11,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:53:11,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:53:11,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:53:11,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:53:11,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:53:11,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:53:11,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:53:11,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:53:11,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:53:11,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:53:11,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:53:11,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:53:11,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:53:11,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:53:11,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:53:11,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:53:11,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:53:11,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:53:11,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:53:11,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:53:11,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:53:11,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:53:11,188 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 [2020-10-12 11:53:11,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:53:11,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:53:11,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:53:11,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:53:11,245 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:53:11,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:53:11,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:53:11,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:53:11,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:53:11,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:53:11,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:53:11,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:53:11,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:53:11,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:53:11,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:53:11,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:53:11,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:53:11,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:53:11,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:53:11,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:53:11,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:53:11,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:53:11,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:53:11,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:53:11,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:53:11,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:53:11,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:53:11,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:53:11,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:53:11,252 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:53:11,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:53:11,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:53:11,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:53:11,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:53:11,625 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:53:11,627 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label31.c [2020-10-12 11:53:11,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8d8414a4/a7b953f8544f4a35824d1eaa63309b4d/FLAG18f62150b [2020-10-12 11:53:12,842 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:53:12,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label31.c [2020-10-12 11:53:12,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8d8414a4/a7b953f8544f4a35824d1eaa63309b4d/FLAG18f62150b [2020-10-12 11:53:12,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8d8414a4/a7b953f8544f4a35824d1eaa63309b4d [2020-10-12 11:53:13,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:53:13,013 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:53:13,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:53:13,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:53:13,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:53:13,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:53:13" (1/1) ... [2020-10-12 11:53:13,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b309059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:13, skipping insertion in model container [2020-10-12 11:53:13,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:53:13" (1/1) ... [2020-10-12 11:53:13,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:53:13,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:53:16,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:53:16,018 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:53:17,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:53:17,301 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:53:17,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17 WrapperNode [2020-10-12 11:53:17,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:53:17,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:53:17,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:53:17,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:53:17,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (1/1) ... [2020-10-12 11:53:17,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:53:17,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:53:17,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:53:17,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:53:17,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (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 [2020-10-12 11:53:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:53:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:53:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:53:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 11:53:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 11:53:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-12 11:53:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-12 11:53:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-12 11:53:17,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-12 11:53:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-12 11:53:17,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:53:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:53:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 11:53:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 11:53:17,963 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-12 11:53:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-12 11:53:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-12 11:53:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-12 11:53:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-12 11:53:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:53:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:53:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:53:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:53:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:53:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:53:26,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:53:26,343 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:53:26,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:53:26 BoogieIcfgContainer [2020-10-12 11:53:26,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:53:26,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:53:26,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:53:26,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:53:26,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:53:13" (1/3) ... [2020-10-12 11:53:26,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d39b705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:53:26, skipping insertion in model container [2020-10-12 11:53:26,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:53:17" (2/3) ... [2020-10-12 11:53:26,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d39b705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:53:26, skipping insertion in model container [2020-10-12 11:53:26,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:53:26" (3/3) ... [2020-10-12 11:53:26,372 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label31.c [2020-10-12 11:53:26,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:53:26,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:53:26,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:53:26,436 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:53:26,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:53:26,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:53:26,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:53:26,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:53:26,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:53:26,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:53:26,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:53:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-12 11:53:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2020-10-12 11:53:26,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:53:26,583 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:53:26,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:53:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:53:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1676017825, now seen corresponding path program 1 times [2020-10-12 11:53:26,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:53:26,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441509838] [2020-10-12 11:53:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:53:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:53:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:53:32,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:53:32,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1708 [2020-10-12 11:53:32,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:53:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-12 11:53:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:53:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:53:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:53:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1702 [2020-10-12 11:53:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 11:53:34,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:53:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:53:34,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:53:34,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:53:34,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:53:34,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:53:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:53:34,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:53:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:53:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:53:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:53:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:53:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:53:37,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441509838] [2020-10-12 11:53:37,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:53:37,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 11:53:37,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827658626] [2020-10-12 11:53:37,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 11:53:37,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:53:37,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 11:53:37,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 11:53:37,138 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 4 states. [2020-10-12 11:53:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:53:53,274 INFO L93 Difference]: Finished difference Result 6310 states and 11850 transitions. [2020-10-12 11:53:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:53:53,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1686 [2020-10-12 11:53:53,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:53:53,336 INFO L225 Difference]: With dead ends: 6310 [2020-10-12 11:53:53,336 INFO L226 Difference]: Without dead ends: 4024 [2020-10-12 11:53:53,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:53:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2020-10-12 11:53:53,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3997. [2020-10-12 11:53:53,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 11:53:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 6427 transitions. [2020-10-12 11:53:53,597 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 6427 transitions. Word has length 1686 [2020-10-12 11:53:53,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:53:53,604 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 6427 transitions. [2020-10-12 11:53:53,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 11:53:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 6427 transitions. [2020-10-12 11:53:53,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1696 [2020-10-12 11:53:53,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:53:53,803 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:53:53,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:53:53,804 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:53:53,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:53:53,805 INFO L82 PathProgramCache]: Analyzing trace with hash -357821546, now seen corresponding path program 1 times [2020-10-12 11:53:53,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:53:53,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16975511] [2020-10-12 11:53:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:53:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:53:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:53:56,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:53:59,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:53:59,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1719 [2020-10-12 11:53:59,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:53:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5190 [2020-10-12 11:53:59,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:53:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 11:53:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 11:53:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1699 [2020-10-12 11:53:59,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 11:54:00,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:54:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:00,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:00,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:00,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:54:00,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:54:00,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:54:00,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:54:00,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:54:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:54:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:54:00,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:54:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:00,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:00,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:00,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:54:00,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:54:00,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:54:00,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:54:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:54:00,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:54:00,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:54:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:54:02,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16975511] [2020-10-12 11:54:02,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:54:02,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:54:02,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307000365] [2020-10-12 11:54:02,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:54:02,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:54:02,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:54:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:54:02,484 INFO L87 Difference]: Start difference. First operand 3997 states and 6427 transitions. Second operand 5 states. [2020-10-12 11:54:21,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:54:21,737 INFO L93 Difference]: Finished difference Result 9818 states and 16384 transitions. [2020-10-12 11:54:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:54:21,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1695 [2020-10-12 11:54:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:54:21,773 INFO L225 Difference]: With dead ends: 9818 [2020-10-12 11:54:21,773 INFO L226 Difference]: Without dead ends: 5827 [2020-10-12 11:54:21,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:54:21,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2020-10-12 11:54:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5817. [2020-10-12 11:54:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5817 states. [2020-10-12 11:54:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 8831 transitions. [2020-10-12 11:54:21,934 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 8831 transitions. Word has length 1695 [2020-10-12 11:54:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:54:21,938 INFO L479 AbstractCegarLoop]: Abstraction has 5817 states and 8831 transitions. [2020-10-12 11:54:21,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:54:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 8831 transitions. [2020-10-12 11:54:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2020-10-12 11:54:22,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:54:22,081 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:54:22,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:54:22,081 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:54:22,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:54:22,083 INFO L82 PathProgramCache]: Analyzing trace with hash -565999090, now seen corresponding path program 1 times [2020-10-12 11:54:22,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:54:22,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528222078] [2020-10-12 11:54:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:54:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:22,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:23,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:27,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:27,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1736 [2020-10-12 11:54:27,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:54:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5228 [2020-10-12 11:54:27,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-12 11:54:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 11:54:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1294 [2020-10-12 11:54:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:54:34,617 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2020-10-12 11:54:34,747 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2020-10-12 11:54:35,642 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-12 11:54:35,801 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-10-12 11:54:36,053 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 39 [2020-10-12 11:54:36,222 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 34 [2020-10-12 11:54:36,379 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-12 11:54:36,552 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-12 11:54:36,790 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 36 [2020-10-12 11:54:36,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:54:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:36,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:54:36,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:54:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:54:36,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:54:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:54:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:54:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:54:36,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:54:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:36,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:54:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:54:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:54:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:54:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:54:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:54:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:54:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 11:54:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:54:36,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:54:36,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:54:36,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:54:36,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:54:36,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:54:36,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:54:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:54:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:54:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:54:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:54:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:54:58,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528222078] [2020-10-12 11:54:58,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:54:58,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 11:54:58,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868256602] [2020-10-12 11:54:58,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 11:54:58,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:54:58,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 11:54:58,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:54:58,884 INFO L87 Difference]: Start difference. First operand 5817 states and 8831 transitions. Second operand 23 states. [2020-10-12 11:54:59,395 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-12 11:55:00,225 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-12 11:55:22,935 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-12 11:55:24,558 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-10-12 11:55:26,064 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-12 11:55:29,304 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-12 11:55:30,394 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-10-12 11:55:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:55:36,780 INFO L93 Difference]: Finished difference Result 12921 states and 20270 transitions. [2020-10-12 11:55:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 11:55:36,782 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1710 [2020-10-12 11:55:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:55:36,831 INFO L225 Difference]: With dead ends: 12921 [2020-10-12 11:55:36,831 INFO L226 Difference]: Without dead ends: 7110 [2020-10-12 11:55:36,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=212, Invalid=1428, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 11:55:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2020-10-12 11:55:37,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 7103. [2020-10-12 11:55:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7103 states. [2020-10-12 11:55:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 10139 transitions. [2020-10-12 11:55:37,043 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 10139 transitions. Word has length 1710 [2020-10-12 11:55:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:55:37,046 INFO L479 AbstractCegarLoop]: Abstraction has 7103 states and 10139 transitions. [2020-10-12 11:55:37,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 11:55:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 10139 transitions. [2020-10-12 11:55:37,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1714 [2020-10-12 11:55:37,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:55:37,102 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:55:37,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:55:37,103 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:55:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:55:37,104 INFO L82 PathProgramCache]: Analyzing trace with hash 297042374, now seen corresponding path program 1 times [2020-10-12 11:55:37,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:55:37,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471181383] [2020-10-12 11:55:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:55:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:55:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:37,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:37,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:42,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:55:42,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1739 [2020-10-12 11:55:42,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:55:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-12 11:55:42,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:55:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 11:55:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 11:55:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 798 [2020-10-12 11:55:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:55:45,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:55:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:55:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:45,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:55:45,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:55:45,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:55:45,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:55:45,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:55:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:55:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:55:45,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:55:45,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:55:45,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:55:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:55:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:45,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:55:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:55:45,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:55:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:55:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:55:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:55:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:55:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:55:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:55:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 11:55:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:55:45,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:55:45,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:55:45,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 11:55:45,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:55:45,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 11:55:45,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:55:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 11:55:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:55:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 11:55:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:55:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 11:55:59,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471181383] [2020-10-12 11:55:59,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:55:59,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 11:55:59,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458320314] [2020-10-12 11:55:59,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 11:55:59,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:55:59,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 11:55:59,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:55:59,487 INFO L87 Difference]: Start difference. First operand 7103 states and 10139 transitions. Second operand 22 states. [2020-10-12 11:56:34,681 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-12 11:56:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:56:47,679 INFO L93 Difference]: Finished difference Result 21329 states and 32338 transitions. [2020-10-12 11:56:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:56:47,681 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 1713 [2020-10-12 11:56:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:56:47,737 INFO L225 Difference]: With dead ends: 21329 [2020-10-12 11:56:47,738 INFO L226 Difference]: Without dead ends: 14232 [2020-10-12 11:56:47,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2020-10-12 11:56:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14232 states. [2020-10-12 11:56:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14232 to 14214. [2020-10-12 11:56:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14214 states. [2020-10-12 11:56:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14214 states to 14214 states and 17944 transitions. [2020-10-12 11:56:48,068 INFO L78 Accepts]: Start accepts. Automaton has 14214 states and 17944 transitions. Word has length 1713 [2020-10-12 11:56:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:56:48,069 INFO L479 AbstractCegarLoop]: Abstraction has 14214 states and 17944 transitions. [2020-10-12 11:56:48,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 11:56:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14214 states and 17944 transitions. [2020-10-12 11:56:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1720 [2020-10-12 11:56:48,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:56:48,143 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:56:48,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:56:48,144 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:56:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:56:48,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1891757020, now seen corresponding path program 1 times [2020-10-12 11:56:48,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:56:48,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801202068] [2020-10-12 11:56:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:56:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:56:48,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:48,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:48,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:49,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:53,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:56:53,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1745 [2020-10-12 11:56:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:56:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 11:56:53,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:56:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:56:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:56:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 11:56:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:56:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:56:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:56:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:53,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:56:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:56:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:56:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:56:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:56:53,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:56:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:56:53,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:53,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:56:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:56:53,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:56:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:56:53,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:56:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:56:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:56:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:56:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:56:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 11:56:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:56:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:53,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:56:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:56:53,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 11:56:53,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:56:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:56:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:56:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:56:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:56:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:56:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0